Zwitterionic polyacrylamide is formed by hydrolysis copolymerization of vinylamide and vinyl cationic monomer acrylamide. According to infrared spectrum analysis, the product chain not only has the "carboxyl negative charge" after acrylamide hydrolysis, but also the vinyl positiv
Amphoteric polyacrylamide is formed by hydrolysis copolymerization of vinyl amide and vinyl cationic monomer acrylamide monomer. According to infrared spectroscopy analysis, the product not only has a carboxyl group negative charge after acrylamide hydrolysis, but also a vinyl group positive charge on the chain. Therefore, it constitutes an irregular polymer with both positive and negative charges on the molecular chain. The zwitterionic type is not a mixture of anionic and cationic types.
1. Charge Neutralization: The cationic and anionic groups on the molecular chain of zwitterionic polyacrylamide can respectively neutralize particles with opposite charges in water, balancing the surface charges of particles and eliminating electrostatic repulsion between particles, promoting particle aggregation.
2. Adsorption bridging: Long chain polymer can simultaneously adsorb multiple particles, forming bridges between particles to connect dispersed particles together and form larger flocs.
3. Net capture and sweeping: When the dosage is large, the polymer chains will entangle with each other to form a network structure, like a large net, capturing and sweeping small particles in the water together, accelerating the sedimentation of particles.
聚丙烯酰胺的性能指标 | |
外观：白色粉状/颗粒 | 固含量：≥96% |
特性粘度：17.5-19.4 | 水解度：22.5-27.5% |
过滤比：≤1.5 | 残余单体：≤0.05% |
粘度：≥38.0mpa.s | 不溶物: ≤0.2% |
筛网系数: ≥20.0 | 溶解速度: ≤2.0hr |
粘度: ≥1mm ≤5.0% | |
≥0.212mm ≤5.0% | |
1. Wide applicability: It can function under different pH conditions, and can effectively perform flocculation, precipitation, and other operations in acidic, alkaline, or neutral environments. It is suitable for the treatment of various complex water quality.
2. Strong salt resistance: In high salinity wastewater environments, it can still maintain good flocculation performance without significantly reducing its effectiveness due to the presence of salt ions.
3. Good flocculation effect: It can quickly adsorb suspended particles in water, forming large and dense flocs, with fast settling speed and high treatment efficiency.
4. Excellent sludge dewatering performance: During the sludge dewatering process, the solid content of the sludge cake can be increased, the moisture content of the sludge can be reduced, and the subsequent treatment costs can be reduced.
5. Multifunctionality: Not only does it have flocculation effect, but it can also have dispersing, thickening and other effects, which can be applied in multiple fields.
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