Polydimethyldiallylammonium chloride (P-DADMAC) Technical Guide polydimethyldiallyl ammonium chloride (P-DADMAC),the product isZhejiang Xinhaitian Biotechnology Co., Ltd.One of the core advantageous products.This comprehensive guide is designed for technical developers, purchasing managers and business owners to delve into the technical details of the high-performance cationic polymer, polydimethyldiallyl ammonium chloride (P-DADMAC). Technology Encyclopedia: Comprehensive Analysis of P-DADMAC Polydimethyldiallylammonium chloride (P-DADMAC) is a cationic quaternary ammonium salt polymer with high charge density. Unlike many organic flocculants, it is completely free of formaldehyde and exhibits excellent stability over a very wide pH range.     characteristics details product name Polydimethyldiallylammonium chloride (PolyDADMAC / P-DADMAC) CAS number 26062-79-3 molecular formula （C8H16NCl)n EC number 230-993-8 chemical structure Linear polymer with a quaternary ammonium salt cyclic structure in the main chain Main upstream raw materials Dimethyldiallyl ammonium chloride (DADMAC) Main preparation process Free radical polymerization of DADMAC monomer in aqueous solution Common solid content specifications 10%-60% (can be customized according to needs) Key certifications NSF (Drinking Water Certification), REACH (EU Certification), ZDHC, GOTS Main downstream applications Water treatment, textile fixation, papermaking additives, oilfield clay stabilization 10 in-depth technical FAQs 1. How does the molecular weight (MW) distribution of P-DADMAC affect the capture efficiency of "anionic garbage" in papermaking? Low molecular weight P-DADMAC can more effectively penetrate into fiber pores and neutralize dissolved and colloidal substances (DCS); while high molecular weight varieties show better retention of auxiliary agents.Zhejiang Xinhaitian Biotechnology Co., Ltd.Provide customized molecular weight distribution solutions to optimize the wet-end chemical environment for specific paper types. 2. Can polydimethyldiallylammonium chloride maintain cationic charge density in high-salinity industrial wastewater? Yes. Unlike the "chain collapse" that may occur in polyacrylamide (PAM) at high ionic strength, the quaternary ammonium ring structure of P-DADMAC is relatively rigid. It remains effective in high-salinity brines (up to 15% NaCl/CaCl ˇ), a key factor in the treatment of reinjection water in mines and oil fields. 3. What is the synergy mechanism between P-DADMAC and inorganic coagulants such as PAC? P-DADMAC is good at "charge neutrality", while PAC provides "sweep flocculation". When used together in the dual reagent system, the amount of PAC can be reduced by 30-50%, and the volume of chemical sludge produced can be significantly reduced. 4. Why is P-DADMAC superior to Polyamines in NSF certified drinking water treatment? P-DADMAC generally has lower residual monomer levels and greater chlorine resistance. As an NSF certification holder,Zhejiang Xinhaitian Biotechnology Co., Ltd.Ensure that residual monomer content is strictly controlled below the most stringent international thresholds. 5. How does P-DADMAC affect the reduction of COD in textile printing and dyeing wastewater? It specifically targets the hydrophobic organic components in dyes. By forming insoluble complexes with anionic dye molecules, P-DADMAC can remove up to 90% of chroma and 40-60% of soluble COD before the biological treatment stage. 6. Will P-DADMAC react with free chlorine in treated water? Compared with primary or secondary amines, P-DADMAC has extremely high resistance to oxidative degradation by chlorine or ozone. This makes it an ideal coagulant for pre-chlorinated water systems or swimming pool water treatment. 7. How does the "ring formation efficiency" during the polymerization of dimethyldiallyl ammonium chloride monomer affect polymer performance? Incomplete cyclization results in increased branching and decreased cationic charge density. As the drafting unit of the "T/ZZB 3886-2024" DADMAC standard,xinhaitianThe synthetic technology of our company ensures high-purity linear chains, resulting in better charge density and storage stability. 8. Can P-DADMAC be used as a "conductive polymer" in specialty coatings? Yes. Due to its high ionic conductivity, it is increasingly used as an antistatic agent in electronic packaging and as a conductive layer in specialty inkjet printing paper. 9. What is the biological toxicity of P-DADMAC to aquatic organisms? Although cationic polymers are toxic to fish at high concentrations, P-DADMAC is quickly adsorbed by suspended solids and organic matter in natural waters, which significantly reduces its bioavailability and environmental impact. 10. How to adjust the dosing amount for pH fluctuations in printing and dyeing wastewater? P-DADMAC is effective between pH 2 and 12. However, when removing vat dyes or sulfur dyes, a pH of 7 - 10 is recommended to maximize the precipitation effect of the dye-polymer complex. 5 Industry Application Guides (How-to) 1. How to optimize AKD sizing efficiency in alkaline papermaking? Technical difficulties: Anionic waste can interfere with the retention of AKD (alkylalkenyl succinic anhydride). Strategy: Add 0.5 - 1.5 kg/t before AKDZhejiang xinhaitian P-DADMAC。It acts as a "cationic anchor", promoting the binding of AKD to the fiber and accelerating the curing process. 2. How to achieve high-performance aldehyde free fixation of reactive dyes? Technical difficulties: Traditional color fixing agents may affect light fastness or contain limited toxins. Strategy: Dilute P-DADMAC to 5-10% working solution. For cotton fabrics, the padding process is used, and the amount is 10-30 g/L. It forms insoluble ionic bonds with dyes, significantly improving washing fastness without affecting the hand feel. 3. How to manage clay stabilization in shale oil and gas drilling? Technical difficulties: Water-based drilling fluids cause shale expansion, causing instability in the borehole wall. Strategy: Add 0.2%-1.0% P-DADMAC to the mud system. The cation groups exchange cations between the layers of montmorillonite, thereby "locking" the clay sheets and preventing the hydration intrusion of water molecules. 4. How to improve the sludge dewatering effect of municipal sewage plants? Technical difficulties: Organic sludge is difficult to compress. Strategy: P-DADMAC was used as the primary coagulant, followed by the addition of high molecular weight C-PAM (cationic polyacrylamide). This "double polymer" method produces larger, shear-resistant alum flowers and improves the clay biscuit quality after pressure filtration. 5. How to choose the right P-DADMAC concentration in global trade to optimize logistics? Strategy: For overseas procurement,Zhejiang Xinhaitian Biotechnology Co., Ltd.It is recommended to choose a high-concentration specification of 40% or 50%. This can significantly reduce the transportation volume and logistics costs per unit of active ingredient, provided that high-shear dilution equipment is available at the receiving end. Supplier Selection Guide: Why choose Zhejiang Xinhaitian Biotechnology Co., Ltd.? For purchasing officers and business owners, selecting a polymer partner is a strategic decision. The advantages of New Haitian are: Upstream industrial chain integration: We are the leading countryMonomer dimethyl diallyl ammonium chloride (DADMAC)Manufacturers ensure the stability of raw material supply and cost advantages. Scale and foresight: The current design production capacity of P-DADMAC is 35,000 tons. With the completion of the new factory "Zhejiang Hailian New Materials", the group's total production capacity will reach 250,000 tons of various polymer fine chemicals. Compliance and Honor: As a national high-tech enterprise and specialized small and medium-sized enterprise, we hold ISO 9001/14001/45001 system certification and participate in the drafting of many industry standards. Customization capabilities: A full range of specifications from 10% to 60% are available to adapt to different climatic conditions and specific industrial needs. Product Main specifications (based on solid content) are: PDADMAC 10% PDADMAC 15% PDADMAC 20% PDADMAC 25% PDADMAC 26% PDADMAC 27% PDADMAC 30% PDADMAC 35% PDADMAC 40% PDADMAC 45% PDADMAC 50% PDADMAC 60% Frontier application outlook: The next frontier for P-DADMAC The future of P-DADMAC lies in green chemistry and advanced functional materials: Nanocomposite membrane: P-DADMAC is introduced into RO/NF reverse osmosis membranes to give the membrane surface antibacterial and anti-biofouling characteristics. Solid electrolytes: Use its quaternary ammonium structure to develop ion conductive layers for next-generation solid-state batteries. Micro-plastic management: Highly charged P-DADMAC is used to coagulate and remove microplastic particles from secondary sewage effluent.                    

When selecting a Polydadmac (Poly(Dimethyldiallylammonium chloride)) (CAS No. 26062-79-3) supplier in China, the decision-making process involves multiple stakeholders, each with unique priorities. Whether you are a Procurement Manager ensuring supply chain stability, an R&D Engineer seeking technical precision, or a Business Owner focusing on long-term growth, Zhejiang Xinhaitian Bio-Technology Co., Ltd. offers a comprehensive solution that addresses the specific pain points of your role and industry. Part 1: When Purchasing Polydadmac, Facing Stakeholders —What Matters Most?   For Procurement Personnel: Stability & Compliance The primary pain point for sourcing is the risk of price volatility and supply disruption. Supply Security: With a designed capacity of 35,000 tons of Polydadmac (Poly(Dimethyldiallylammonium chloride)) and 50,000 tons of its monomer (DADMAC), we offer unmatched supply stability. Because we produce our own monomer, we are shielded from the market fluctuations that often paralyze smaller blending factories. Regulatory Peace of Mind: We provide all necessary international certifications, including REACH (EU) and NSF (Global), ensuring smooth customs clearance and compliance with local safety regulations in over 40 countries. For R&D and Technical Personnel: Consistency & Purity Engineers care about how the chemical performs in the tank. Strict Monomer Control: Using our independently developed core technology (Patent No: CN115521215B), we minimize monomer residue and ensure a narrow molecular weight distribution. Batch-to-Batch Uniformity: As a "Made in Zhejiang" standard leader (T/ZZB 3886-2024), our quality control protocols ensure that the product you test in the lab is exactly what arrives in the 1,000L IBC tanks. For Business Owners: Trust & Future-Proofing Decision-makers look at the “Total Cost of Ownership” and the vendor’s longevity. Historical Reliability: Founded in 1994, our 30-year history as a National High-tech Enterprise and a Tax Credit A Grade Enterprise proves we are a low-risk, high-integrity partner. ESG & Sustainability: We hold ZDHC and GOTS certifications, ensuring your brand meets the global push for green and sustainable manufacturing. Part 2: Industry-Specific Solutions & Pain Points of Purchasing Polydadmac Zhejiang Xinhaitian Bio-Technology Co., Ltd.'s Polydadmac (Poly(Dimethyldiallylammonium chloride)) is formulated to solve the distinct “headaches” of various sectors:     Industry Common Pain Point Zhejiang Xinhaitian Bio-Technology Co., Ltd.'s Professional Solution Water Treatment High sludge volume & rising chemical costs. Our high-charge density Polydadmac (Poly(Dimethyldiallylammonium chloride)) facilitates faster settling and denser flocs, reducing overall chemical dosage and sludge disposal costs. Paper & Pulp “Anionic Trash” causing machine downtime. Acts as a high-efficiency fixing agent that neutralizes anionic impurities, improving machine runnability and fiber retention. Textile & Dyeing Color bleeding and poor wash fastness. Provides superior color fixing for reactive and direct dyes without affecting the hand-feel or shade of the fabric. Oil & Gas Performance failure in high-salinity environments. Specialized grades designed for clay stabilization and enhanced oil recovery even under challenging geological conditions.   Part 3: Looking For Polydadmac Strategic Partners- Solving the “New Industry” Demands through R&D We recognize that the industry is evolving. Traditional Polydadmac (Poly(Dimethyldiallylammonium chloride)) is no longer enough for high-end applications. Zhejiang Xinhaitian Bio-Technology Co., Ltd. is actively breaking through with new R&D milestones: Solving Microplastic Concerns: We are researching hybrid polymer systems to improve biodegradability in municipal wastewater. High-Speed Processing: To meet the needs of high-speed paper machines and automated textile lines, we have developed low-viscosity, high-activity grades that disperse instantly. Advanced Membrane Protection: We have successfully engineered grades that minimize the fouling of ultrafiltration membranes, extending the lifespan of expensive water recycling equipment. Part 4: Scaling for Your Future Growth A common fear among buyers is: “Will my supplier grow with me?” At Zhejiang Xinhaitian Bio-Technology Co., Ltd., the answer is a definitive yes. We are nearing the completion of our newest production base, Zhejiang Hailian New Material Technology Co., Ltd., in the Hangzhou Bay Shangyu Economic and Technological Development Zone. This facility will boast a total annual capacity of 250,000 tons of polymer fine chemicals. This massive expansion is not just about quantity; it represents our commitment to being the frontrunner in the global market, providing our partners with the most favorable pricing through extreme economies of scale. Conclusion: A Recommended Partnership Built on Fact Choosing Zhejiang Xinhaitian Bio-Technology Co., Ltd. is more than selecting a product; it is recommending a standard of excellence. With our 30,000-square-meter facility, patented technologies, and a service network spanning 40+ countries, we are ready to handle your most complex requirements. As a Zhejiang Hidden Champion Cultivating Enterprise, we remain humble in our service but ambitious in our quality, striving to provide the best value in the water-soluble polymer industry. h2 { color: #2696D2; /* 蓝色文字 */ display: inline-block; /* 使下划线宽度与文字等宽 */ border-bottom: 4px solid #1B86C8; /* 2px 红色下划线 */ padding-bottom: 2px; /* 调整下划线与文字的间距 */ transition: color 0.3s ease; /* 平滑过渡效果 */ } h2:hover { color: #108881; /* 悬停时变为绿色文字 */ }

1. What Is POLYDADMAC? — An Encyclopedic Overview POLYDADMAC, formally known as Polydiallyldimethylammonium Chloride, is a water-soluble cationic polymer synthesized from the monomer Diallyl dimethyl ammonium chloride. Its CAS number is 26062-79-3, a key identifier widely cited in chemical databases and regulatory documents. Due to its high charge density, good solubility, and controllable molecular weight, POLYDADMAC has been extensively applied as a flocculant, coagulant aid, and charge neutralization agent across multiple industrial sectors. Unlike low-molecular quaternary ammonium salts, POLYDADMAC provides stronger adsorption, faster clarification, and improved performance stability over a wide pH range, which explains its long-standing industrial adoption. 2. Mature and Proven Technical Applications of POLYDADMAC 2.1 Water Treatment (Municipal & Industrial) POLYDADMAC is widely used in drinking water and wastewater treatment as a primary coagulant or coagulant aid. It effectively neutralizes negatively charged colloids, improves floc formation, and reduces turbidity. In many systems, POLYDADMAC is used alongside inorganic coagulants such as PAC or aluminum sulfate to enhance settling efficiency and sludge dewatering performance. 2.2 Paper and Pulp Processing In papermaking, POLYDADMAC functions as a retention and drainage aid, helping fix fines, fillers, and sizing agents onto fibers. This contributes to improved sheet formation, higher retention efficiency, and more stable production processes. 2.3 Textile Printing and Dyeing Within textile finishing, POLYDADMAC is commonly used in color fixing formulations and pre-treatment processes. Its cationic nature enhances dye fixation on fibers, helping improve wet fastness while supporting more efficient downstream processing. 2.4 Oilfield and Industrial Fluids In oilfield chemicals and industrial water systems, POLYDADMAC can be applied for solid–liquid separation, water clarification, and process stability under challenging conditions. 3. Raw Material and Polymerization Technology Background The core monomer for POLYDADMAC production is dadmac, also known as DADMAC or DMDAAC. High-purity DADMAC and controlled polymerization conditions are essential for achieving consistent molecular weight distribution, viscosity control, and product stability. Producers with integrated monomer synthesis, polymerization know-how, and quality control systems are typically better positioned to ensure batch-to-batch reliability. 4. How to Select a Reliable POLYDADMAC Supplier When selecting a POLYDADMAC supplier, the following aspects are generally recommended for evaluation: 4.1 Regulatory Compliance REACH registration for the EU market NSF certification for drinking water-related applications (where applicable) 4.2 Production Capacity and Process Stability Suppliers with large-scale, continuous production facilities are often better equipped to ensure long-term supply reliability and consistent quality. 4.3 Technical Support and Application Experience Beyond product supply, experienced manufacturers usually provide application guidance, formulation support, and troubleshooting assistance. 4.4 R&D and Standard Participation Participation in industry standards drafting and ongoing R&D investment often reflects a supplier’s technical depth and long-term commitment. In this context, Zhejiang Xinhaitian Bio-Technology Co., Ltd. has established a solid position in POLYDADMAC manufacturing, supported by integrated R&D, large-scale production, and long-term global market presence. 5. Advantages of Zhejiang Xinhaitian in POLYDADMAC Supply Founded in 1994, Zhejiang Xinhaitian Bio-Technology Co., Ltd. operates a modern manufacturing base with a POLYDADMAC designed capacity of 35,000 tons per year, with products certified by REACH and NSF. Key strengths include: Integrated production of DADMAC and POLYDADMAC Long-term export experience covering 40+ countries and regions Multi-application product portfolio spanning water treatment, textiles, papermaking, and daily chemicals Continuous investment in R&D and polymer fine chemical manufacturing These factors collectively support stable quality delivery and long-term cooperation with global customers. 6. Future Application Trends of POLYDADMAC Looking ahead, POLYDADMAC is expected to see continued growth in: Green water treatment technologies with lower chemical dosage requirements Low-VOC and environmentally friendly textile auxiliaries Advanced solid–liquid separation systems in industrial wastewater Customized polymer grades for niche applications requiring specific molecular weights or viscosities Manufacturers with scalable capacity and application-oriented R&D capabilities are likely to play an increasingly important role in these evolving markets.

Foreword: Rapid Penetrant T (commonly known as "Fast T" or "Penetrant T") is an indispensable and efficient additive in many industries such as textile printing and dyeing, water treatment, leather treatment and pesticides. In response to hot questions in the industry about the composition, performance comparison, process flow and storage stability of "Fast T",National high-tech enterprise--Zhejiang Xinhaitian Biotechnology Co., Ltd.The following professional questions and answers are hereby compiled. Q&A Session: Rapid Penetrant T (Fast T) Professional Question and Answer Analysis 1. What is the exact chemical name of rapid penetrating agent T? How did its commonly known names as "Fast T" and "Penetrant T" come from? A： The exact chemical name for rapid penetrating agent T isSodium Dioctyl Sulfonate (DOSS), it is also often calleddocusate sodium。Its core active compound is the most popularsodium diisooctyl maleate sulfonate。because of itsFast and excellent penetration, has been commonly known as "Rapid Penetrant T" or "Fast T" in the industry. 2. Compared with "Fast T" and the penetrant JFC, who has stronger penetration? What are the main differences in application? (Hotspot comparison) A： Rapid Penetrant TtheInstant penetration and efficiency in reducing surface tensionusuallystronger thanNon-ionic penetrant JFC. Fast T (DOSS): asanionicType type, strong permeability, suitable for harsh process environments with high temperature and high alkalinity, such as efficient scouring and bleaching of cotton fabrics, which can quickly increase the wetting speed of the treatment solution. Penetrant JFC: belongs tononionicType type, focusing on good emulsification, dispersion and leveling properties, and is widely used in systems that require low penetration rates or require compatibility with multiple additives. 3. What is the core production process (synthetic route) of rapid penetrating agent T? (Hot spot: Synthetic process) A： The main synthesis route of "Fast T" isEsterification and sulfonationReaction: Esterification reaction: Maleic anhydride reacts with isooctanol to form diisooctyl maleate. Sulfonation reaction: The esterification product is subjected to addition reaction (sulfonation) with sodium bisulfite (or sodium metabisulfite) to finally obtainSodium diisooctyl sulfonate succinate (DOSS)。xinhaitianWith deep R & D accumulation in the field of fine chemicals (with multiple invention patents), we ensure thatRapid Penetrant TThe production process is stable and efficient. 4. Why is the rapid penetrating agent T prone to "layering" or "turbid" under low temperature conditions? How to solve it? (Hot spot: low-temperature stratification) A： As a high-concentration surfactant aqueous solution, rapid penetrating agent T is common for delamination, turbidity or precipitation at low temperatures (close to 0°C)physical phenomena, is a manifestation of the decrease in the solubility of the active substance or co-solvent at low temperatures, and is not a deterioration. Treatment method: In this situation, just place the productWarm environment (such as above 25°C) and slowly stir until uniform and transparentNormal use can be resumed without damage to its performance. 5. How to judge whether the quality of the purchased rapid penetrating agent T is up to standard? What are the core indicators? (Hot spot: T standard for penetrant) A： Quality judgment mainly relies on the following core indicators: Penetration speed (settling time): The most intuitive performance indicators are usually determined by professional penetration testing methods (such as immersion methods). Surface tension reduction value: Lower values indicate greater wetting and penetration capabilities. Appearance and solubility: High-quality products should be transparent or light yellow liquids, and should maintain good transparency and stability after dilution. asT/ZZB 3886-2024 "Dimethyldiallyl ammonium chloride" standardThe leading drafting unit ofxinhaitianThe control over product standards is extremely strict. 6. What do the "T50" and "T80" models of rapid penetrating agent T mean? A： These numbers usually represent the value of the productPercentage of effective active substance, this is a common marking method in chemical products: T-50： Represents the mass percentage of the effective active DOSS in the product is approximately50%。 T-80： Indicates that the effective active content is higher, approximately80%。Customers can choose based on their own process requirements for active substance concentration.xinhaitiandifferent specifications ofRapid Penetrant T。 7. In addition to being used in the field of textile printing and dyeing, in what other aspects can rapid penetrating agent T be used? (Hot spot: Purpose) A： The extremely strong wettability and permeability of "Fast T" make itEight series of productsPlay a role in applications, especially in: Pesticide chemicals: as an efficientwetting agentsanddispersant, improve the coverage and adhesion of pesticide spraying. Leather chemicals: Used for leather degreasing and soaking processes to accelerate the penetration of treating agents. Industrial water treatment: As an auxiliary wetting component in water treatment chemicals. 8. What is the stability of rapid penetrating agent T in solutions with high alkalinity or high electrolyte? A： Rapid penetrating agent T belongs toanionictype surfactant, one of its core advantages is that it hasGood alkali and electrolyte resistance, far superior to many non-ionic or fatty alcohol penetrants. This makes it the most important thing for textile scouring, bleaching, etc.Highly harsh environmentIdeal choice under. 9. If a large amount of foam is generated when using "Fast T", how should we effectively control it? A： As a strong surfactant,"Fast T" easily produces foam during high-speed stirring or spraying. Control method: The most effective way is to add the right amount ofSilicone defoamer or defoaming dispersant。At the same time, optimize the feeding method and stirring speed of the equipment to avoid excessive introduction of air. 10. How to adjust the amount of "fast T" according to different fabric types (such as cotton and linen and chemical fiber)?​ A： The amount must be determined based on the characteristics of the specific fiber: Cellulose fibers such as cotton and linen: The fiber contains natural impurities inside and has a tight structure. It is usually requiredHigher penetrant dosage(Generally 0.5 g/L to 3 g/L) to achieve thorough cooking. Synthetic fibers (such as polyester): The structure is relatively uniform and the penetration difficulty is relatively low.The amount can be appropriately reduced, mainly plays a wetting and dispersing role.xinhaitianIt is recommended that customers determine the best economic dosage based on the penetration speed test results under the guidance of professional technicians. Conclusion: Excellent products originate from professional research and development and strict quality control.Zhejiang Xinhaitian Biotechnology Co., Ltd.As a modern professional enterprise integrating R & D, production, sales and service, we are not only a producer of core products such as DADMAC, but also a producer of polymer chemicals that you haveRapid Penetrant TA reliable partner in applications. We sincerely look forward to seeking common development and win-win cooperation with customers around the world!  

At 10:00 a.m. on November 18th, Zhejiang Hailian New Material (the new production base of Zhejiang XinHaitian Biotechnology Co., Ltd.) put into production and celebrated the ceremony, which was held ceremoniously in Shangyu Economic and Technological Development Zone, Hangzhou Bay, in the factory area.   We are honored to have invited a number of important leaders to witness and deliver speeches at the ceremony, namely Mr. Gu Shiyou, Chairman of China Functional Polymer Industry Committee, Mr. Shi Xianping, Chairman of China Dyestuffs Industry Association, Mr. Liu Qiang, Associate Dean and Professor of Lisbon College of Shanghai University, and Ms. Ge Shufen, Deputy Director of the Management Committee of Shangyu Economic and Technological Development Zone, Hangzhou Bay, and so on. In addition, about 260 guests from home and abroad gathered, including upstream raw material suppliers who have long trusted our company, downstream product users who have been working together, local leaders who have given great support, and employee representatives. Mr. Lu Hai Cai, Chairman of the company, firstly expressed his gratitude to all the partners and customers who participated in the celebration, thanked them for their great support and trust to the company, and expected that they would continue to work hand in hand in the subsequent cooperation, win-win cooperation and common development. At the same time, he thanked the staff for their hard work. Finally, he said that the commissioning of the new plant in Shangyu is a new starting point for the enterprise, and the company will open a new era of leapfrog development with a new concept. Mr. Gu Shiyou, Chairman of the Board of Directors, pointed out in his speech that Zhejiang Hailian New Material Technology Co., Ltd (formerly known as Zhejiang New Haitian Biotechnology Co., Ltd.) is an important force rapidly emerging in the field of functional polymer materials in China. The successful commissioning of the Shangyu plant is not only an important milestone in the development course of Hailian, but also a key step for the whole industry to optimize the layout and enhance the modernization of the industrial chain. The completion of the new plant marks that Hailian has achieved a new leap in terms of production capacity scale, technology and equipment, and intelligentization level, which lays a solid foundation for it to participate in market competition at a higher level and in a wider field. Functional polymer materials, as an important part of the new materials industry, are the cornerstone to support the development of strategic emerging industries, and play an irreplaceable role in promoting the transformation and upgrading of China's manufacturing industry and realizing high-quality development. At present, China is in the critical period of a new round of scientific and technological revolution and industrial change, and the state has attached unprecedented importance to the development of new materials industry. The fact that Hai Luen chooses to expand its production capacity and plough into Shangyu at this time fully demonstrates its excellent strategic vision and firm confidence in the future market. As a bridge and link connecting the government, enterprises and the market, the National Functional Polymer Industry Committee has always been committed to creating a favorable environment for the development of the industry. The committee will, as always, pay attention to and support the development of HaiLian, and jointly promote China's functional polymer industry to a higher level. Mr. Shi Xianping, President of Hailian, said in his speech that “Hai Nabai Chuan” implies that Hailian is open and tolerant to gather talents and wisdom from all over the world, and “Lianmai Built Dreams” highlights the determination to join hands with industrial chain partners to build a grand blueprint for the new materials industry. The name change of the company is a deepening of the strategic layout and sublimation of the industrial vision, marking the firm determination to move forward to a higher goal. We expect the company to focus on scientific and technological innovation and lead the industry in upgrading. Increase investment in R&D, realize breakthroughs in key core technologies, and strive to be the “invisible champion” and “supporting experts” in the upstream of the industrial chain. Adhere to the quality lifeline, casting excellent brands. Carry forward the craftsmanship of excellence, and win wider trust and respect from the market with excellent product quality and stable supply capacity. Practice green and low carbon, guard the green water and green mountains, and set a new benchmark of safe, green and sustainable development for the new chemical materials industry. China Dyestuff Industry Association, as a promoter and service provider of the industry development, will always pay attention to and give full support to enterprises like Hai Luen, which are rich in innovative spirit and practical ability. The association is willing to work with all circles to create a favorable environment for innovation and entrepreneurship, and to promote China's steady progress from a big country of dyestuffs and auxiliaries to a strong country of dyestuffs and auxiliaries. In his speech, President Liu Qiang said that as an industry-university-research partner for many years, he was sincerely happy for the leap-forward development of the old factory "New Haitian" and had high hopes for the new factory's new vision of "accommodating all rivers and building dreams with United Materials". Over the years, the School of Environmental and Chemical Engineering of Shanghai University has continued to cooperate with Hailian to transform basic research results into product solutions, turning "laboratory papers" into "production line benefits". The commissioning of the new plant is not only an increase in production capacity of 140,000 tons, but also a new starting point for the in-depth integration of industry, academia and research. In the future, both parties will continue to focus on key areas such as green materials, low-carbon processes, and solid waste disposal, and work together to overcome the "stuck neck" problem, making "green and efficient" the distinctive features and core competitiveness of Hailian New Materials, helping Hailian continue to lead in the field of new materials, and allowing more green and efficient fine chemicals to spread from Zhejiang to the country and the world. Ge Shufen, deputy director of the speech highly affirmed the Hailian new materials in the Shaoxing Municipal Government of the high level of coordination and precise guidance, in the Shangyu, Yuecheng two districts of the synergistic promotion of the work done, that the Hailian new materials of the growth and breakthroughs, not only is the enterprise's own dare to break through and try to cultivate the main business of the results of the struggle, but also the city of Shaoxing City, promote the chemical industry to enhance the trans-regional agglomeration and optimization of the industrial layout of the vivid epitome, and looks forward to The company takes the commissioning of the project as an opportunity, strict production standards, seize the production schedule, strengthen safety management, and continue to plough into technological research and development, and constantly improve product competitiveness, for the Shangyu and even China's advanced materials industry development to contribute to a greater strength. After the speech ceremony, a grand and enthusiastic ribbon-cutting ceremony was held, and then Mr. Lu Hai Cai announced the official opening of Hai Luen New Material Shangyu Plant, and the atmosphere at the scene was lively and extraordinary. As an important new force in the field of domestic water-soluble polymer, the company now has an annual output of 140,000 tons of water-soluble polymer fine chemical products. The new name carries new dreams, and the new journey calls for new partners! We sincerely look forward to meeting you on the land of Hangzhou Bay, look forward to the future together, and work together to realize win-win development! We are looking forward to the future together with you, to realize win-win development together!    

Primary Price Drivers Q1：poly dimethyl diallyl ammonium chloride/PolyDADMAC What are the most important determinants of cost? A1： Cost of upstream monomer DMDAAC (dimethyldiallyl ammonium chloride)。PolyDADMAC is polymerized from DMDAAC monomers. Therefore, the price fluctuations of DMDAAC (affected by the prices of its raw materials trimethylamine and diallyl chloride) directly determine PolyDADMAC About 70% The above production costs.   Q2: How does the growth in demand in the water treatment industry directly affect PolyDADMAC prices? A2： Demand dominates。water treatment is PolyDADMAC Largest application area (global shareMore than 50%）。With global population growth, water shortages and increasingly stringent regulations on water and wastewater treatment in various countries, demand for PolyDADMAC continues to grow steadily, driving up its price.   Q3: What impact does the solids content and viscosity of PolyDADMAC products have on price? A3： directly affect。Solid content (such as 20%, 30%, 40%) is a key indicator for measuring the active ingredients. The higher the solid content, the higher the price. Also,low viscosityPolyDADMAC is more popular in some automated dosing systems,Process control is more difficultTherefore, there is often a premium.   Q4: How does crude oil price fluctuations indirectly affect PolyDADMAC prices? A4： Conducted through the raw material supply chain。Some of DMDAAC's raw materials, such as propylene, the precursor of diallyl chloride, are downstream derivatives of crude oil. Therefore, fluctuations in the international crude oil market will affect the prices of basic chemical raw materials, which in turn will indirectly affect the production costs of PolyDADMAC.   Q5: Are there significant differences in pricing in the PolyDADMAC market in different regions? A5： Yes, regional needs and regulations are important factors。example,North AmericaandEuropeanDue to its strict environmental regulations and high-standard applications such as drinking water treatment, there is strong demand for high-performance PolyDADMAC and is often the highest-priced market area in the world.   Secondary Influencing Factors   Q6：PolyDADMAC Does competition for alternatives pose price pressure? A6： posing potential stress。PolyDADMAC faces competition from other inorganic/organic flocculants such as polyacrylamide (PAM) and polyaluminum chloride (PAC) in flocculation and decoloration applications. If alternative prices fall significantly or performance improves, it may force PolyDADMAC price adjustments to remain competitive.   Q7: What impact does REACH or NSF certification have on product pricing? A7： Certification brings premiums and market access advantages。PolyDADMAC, which has passed strict international certifications such as REACH (European Market) or NSF (Drinking Water Safety), has proven its safety, quality and compliance, and can enter high-value markets and earn a premium, but the cost of pre-certification will also be included in the price. Compliance manufacturers such as:Zhejiang xinhaitian   Q8: Will the growth of PolyDADMAC's application in non-water treatment areas such as papermaking and cosmetics affect overall prices? A8： Will, by broadening the demand base impact。Although water treatment is the main application, papermaking (as a retention and drainage aid) and cosmetics (as a conditioner), etc.an aperiodicRapid growth of the application market (such as the cosmetics sector, growth rate can reach 8% or more), providing stable demand support for PolyDADMAC and reducing price fluctuations.   Q9: What impact does industry concentration or the production capacity of leading manufacturers have on prices? A9： The pricing strategy of leading manufacturers is instructive。PolyDADMAC The market has a certain degree of concentration. Head manufacturers (such as our company:Zhejiang xinhaitian) Capacity utilization, inventory levels and strategic pricing have an important impact on price trends across Asia and even global markets.   Q10: How do improvements in production processes (technological innovations) affect the cost structure? A10： Promote long-term cost optimization。New polymerization technologies, catalysts or more energy-efficient reactor designs can increase monomer conversions and reduce energy consumption. This technological innovation can reduce the cost per unit of output and is the key to maintaining long-term price competitiveness.   Q11: How do geopolitics and supply chain stability affect delivery prices? A11： Increase logistics risks and costs。PolyDADMAC's main production bases are concentrated in Asia, while its main consumer markets are scattered. Geophysical conflicts, shortages of shipping containers or soaring logistics costs (such as fuel surcharges) can significantly increase the cost of cross-border trade, which is ultimately reflected in CIF (cost, insurance and freight) quotations.