阴离子型聚电解质P(AM-co-AAK)的制备和性能

Preparation and Properties of Anionic Polyelectrolyte P(AM-co-AAK)

以丙烯酰胺(AM)、丙烯酸钾(AAK)为单体,采用反相乳液聚合法合成了阴离子型聚电解质P(AM-co-AAK),并对产物的结构、形貌等进行了表征。研究了产物的抗盐性,考察了产物特性黏数、用量和体系pH对w=0.1%的高岭土悬浮液模拟废水的絮凝性能的影响。结果表明:产物具有较好的抗盐性;当其特性黏数为6.6dL/g,絮凝剂的最佳用量为3mg/L时,絮凝性能最好,透过率达到最高值(54.43%),并且产物在碱性条件下的絮凝性能明显优于在酸性条件下的。

An anionic polyelectrolyte P（AM-co-AAK） was synthesized by inverse emulsion polymerization,in which acrylamide（AM） and potassium acrylate（AAK） were used as monomers.The structure and morphology of the product were characterized,and the salt-resistance of the product was studied.Furthermore,the effects on the flocculation performance were investigated in Kaolin suspension simulated wastewater（w=0.1%）,including： intrinsic viscosity,product dosage and pH value of system.Results show that the product has good salt-resistance.When the intrinsic viscosity is 6.6 dL/g and the dosage of flocculant is 3 mg/L in the simulated wastewaters,the flocculation performance is the best and the transmittance reaches the highest value（54.43%）.The flocculation effect in the alkaline condition is better than that in the acid condition.