聚(丙烯酰胺-甲基丙烯酸聚乙二醇酯)絮凝剂的合成及应用

Synthesis and Application of Poly(Acrylamide and Polyethylene Glycol Methacrylate)Flocculant

通过甲基丙烯酸聚乙二醇酯与丙烯酰胺的共聚制备二元共聚絮凝剂，并对水溶性染料进行絮凝脱色研究。该絮凝剂的絮凝脱色效果随絮凝剂高分子结构、用量、表面活性剂和废水pH而有较大变化，对染料的絮凝脱色率可达到93．3％。通过动态激光光散射测试絮凝沉淀过程中废水中微粒粒径变化，发现水溶性染料分子和表面活性剂相互作用，形成混合胶束，二元共聚絮凝剂在微胶束之间架桥，形成微胶束交联体系，促进水溶性染料的沉降，共聚物絮凝剂对水溶性染料的絮凝脱色达到了较好的效果。

A binary copolymerized flocculant was polymerized by using polyethylene glycol methacrylate and acrylamide . The decolorizing effect of water‐soluble dye by the flocculant was investigated .Flocculation and decolorizing effects of this decolorizing effect change with macromolecular structure of flocculant ,dosage ,surfactant and pH of waste water ,and flocculation and decolorizing rate of dyes is as high as 93 .3% .Through testing the changes in grain diameter of particles in the waste water with dynamic laser light scattering in flocculent precipitation process ,it is found that water‐soluble dye molecules and the surfactant interact to form mixed micelle .Binary copolymerized flocculant is bridged among micro‐micelle to form micro‐micelle crosslinking system and promote sedimentation of water‐soluble dye .The copolymerized flocculant reaches good effects on flocculation and decoloration of water‐soluble dy e .