Overview
Anionic Polyacrylamide (PAM) is a synthetic polymer derived from acrylamide monomers, engineered with negatively charged functional groups. It is a key industrial chemical prized for its flocculation capabilities, enabling efficient separation of suspended solids in liquids. First developed in the mid-20th century, PAM has become indispensable in environmental and industrial processes. Its anionic variant is particularly effective in treating wastewater with positively charged particles due to charge neutralization mechanisms.
Physical and Chemical Properties
Anionic PAM typically appears as white granules or powder with a density of approximately 1.3 g/cm³. Its high molecular weight (5–20 million g/mol) contributes to remarkable water solubility, forming viscous solutions even at low concentrations (0.1–0.5%). The polymer decomposes at 210–250°C rather than melting, and its anionic character (usually 10–40% hydrolysis degree) enhances performance in alkaline conditions. Key properties include shear resistance, pH stability (effective in pH 7–14), and compatibility with inorganic coagulants like aluminum sulfate.
Main Applications
In wastewater treatment, anionic PAM accelerates sedimentation by aggregating fine particles, reducing treatment time by up to 80%. The mining industry uses it for tailings dewatering, while oilfields employ it in drilling fluids to reduce friction and improve recovery rates. Paper manufacturers utilize PAM as a retention aid, and agricultural applications include soil conditioning to prevent erosion. Emerging uses include sludge dewatering in municipal plants and clarifying industrial effluents from textile or food processing facilities.
Safety and Storage
Though classified as non-toxic, PAM dust may irritate respiratory systems—industrial users should implement dust control measures. The monomer residue (acrylamide) is strictly regulated (<0.05% in most countries); reputable suppliers provide certification. Store in original packaging at <30°C with <70% humidity. Shelf life is typically 2 years when properly sealed. Avoid contact with strong oxidizers, and equip storage areas with spill containment measures due to the product's slippery nature when wet.
B2B Procurement Guide
Industrial buyers should prioritize suppliers with ISO 9001 certification and batch-specific analysis reports. Key specifications to verify include: molecular weight (±10% tolerance), hydrolysis degree (e.g., 20% or 30%), and residual monomer content (<0.025% for EU REACH compliance). Bulk shipments (25kg bags or 1-ton super sacks) typically offer 5–15% cost savings versus small quantities. Consider regional production hubs—China supplies 60% of global PAM, but European/North American manufacturers may offer shorter lead times for Western buyers.
Related Manufacturers
- 主营：聚丙烯酰胺、聚合氯化铝、聚合硫酸铁、聚丙烯酰胺pam、活性炭、乙酸钠、阻垢剂、消泡剂、葡萄糖、水处理药剂、滤料
- 主营：聚丙烯酰胺白药系列、污泥脱水、聚丙烯酰胺
- 主营：阴离子、聚丙烯酰胺、重金属捕捉剂、钢厂水处理药剂
- 主营：铁碳填料、还原铁粉、配重铁粉、化工铁粉、混凝土滤板、磁粉、柔性防水套管、刚性防水套管、ABS滤板模板、石英砂滤料、无烟煤滤料、蜂窝斜管填料、盘式曝气器、活性炭、微电解填料、锰砂滤料、蜂窝活性炭、多孔悬浮球填料、套筒补偿器、旋转补偿器、可提升曝气器、滤头、聚丙烯酰胺PAM、聚合氯化铝PAC、水处理磁粉
- 主营：椰壳活性炭、无烟煤滤料、石英砂滤料、锰砂滤料、蜂窝斜管填料、煤质柱状活性炭、微孔曝气器、纤维球滤料、863彗星式纤维滤料、火山岩
- 主营：聚丙烯酰胺、聚合氯化铝、醋酸钠、工业葡萄糖、聚合硫酸铁、磷酸三钠
- 主营：黄原胶、羧甲基纤维素、羧甲基淀粉、聚阴离子纤维素、抑尘剂、型煤粘合剂、农林保水剂、预糊化淀粉、吸水树脂、瓜尔胶、聚丙烯酰胺
- 主营：聚合氯化铝、微生物菌种、复合菌种、阴阳非离子聚丙烯酰胺、好氧菌种、厌氧菌种、耐低温菌种、硝化菌种、反硝化菌、生物促进剂、自养硝化菌、菌伴侣、芽孢杆菌、醋酸钠(乙酸钠)、悬浮球、石英砂、锰砂滤料、阻垢剂、生物除臭剂、蜂窝斜管填料、组合式填料、椰壳果壳煤质活性炭
- 主营：聚合硫酸铁、除磷剂、醋酸钠、阴离子聚丙烯酰胺、聚丙烯酰胺、聚合氯化铝、除氟剂、阻垢剂、复合碳源、工业纯碱、悬浮球填料、反渗透清洗剂、非氧化杀菌剂、乙酸钠、氨氮去除剂、葡萄糖、杀菌剂、工业级葡萄糖、絮凝剂、十二烷基硫酸钠、乙二醇、还原剂、活性炭、石英砂、无烟煤滤料
- 主营：聚丙烯酰胺、聚合氯化铝、聚合硫酸铁、阴离子聚丙烯酰胺、消泡剂、葡萄糖、碱式氯化铝、阻垢剂、醋酸钠、柠檬酸、纯碱、复合碱、氨氮去除剂、焦亚硫酸钠、硫酸亚铁、杀菌灭藻剂、活性炭、碳酸氢钠、脱色剂、破乳剂、磷酸三钠、三聚磷酸钠
- 主营：絮凝剂、碱性紫、碱性品红、阴离子聚丙烯酰胺、碱性大红、水性染料、化工助剂、化肥染料、造纸板材、专用染料、碱性品兰、碱性嫩黄o、化肥着色剂、聚合氯化铝、聚丙烯酰胺、黄佛香染料、碱性玫瑰精、粘性液体橡胶、净水处理药剂、栗子元青色染料
- 主营：消泡剂、活性炭、聚丙烯酰胺、水处理白药、阻垢剂、除垢剂、杀菌灭藻剂、醋酸钠-乙酸钠、工业葡萄糖、纤维球、复合碳源、重金属捕捉剂、除磷剂、除臭剂、除氟剂、氨氮去除剂
- 主营：硫酸亚铁、聚丙烯酰胺、聚合氯化铝、石灰、活性炭、纯碱、片碱、次氯酸钠、漂白粉、醋酸钠、硫酸铝、焦亚硫酸钠、消泡剂、水玻璃、柠檬酸、葡萄糖
- 主营：聚丙烯酰胺、聚合氯化铝、葡萄糖、阴离子聚丙烯酰胺、循环水药剂
- 主营：水处理药剂、活性炭吸附系列、污水处理曝气器系列、净水滤料系列、多种净水材料