疏水改性阳离子高分子絮凝剂的合成及其絮凝性能

以甲基丙烯酰氧乙基三甲基氯化铵(DMC)和甲基丙烯酸甲酯(MMA)为原料,通过无皂乳液聚合制备了流动性好的疏水改性阳离子型高分子絮凝剂P(DMC-MMA),并考察了不同因素对P(DMC-MMA)除油效果的影响。结果表明:在单体总质量分数为30%、n(DMC)∶n(MMA)=7∶3、反应温度75℃、引发剂用量为0.5%、反应时间8 h条件下制备的P(DMC-MMA)具有良好的絮凝效果,最高除油率可达96%,且絮体不黏壁。

Synthesis of the hydrophobic,modified, cationic,and polymeric flocculant and its flocculation capacity for wastewater

Hydrophobic,modified,cationic,and polymeric flocculant P (DMC-MMA)has been polymerized and prepared by soap-free emulsion polymerization,using methacryloxyethyltrimethyl ammonium chloride (DMC) and methyl methacrylate (MMA)as raw materials.The influences of different factors,including monomer mass fraction,reaction temperature,initiator dosage and reaction time on the P (DMC-MMA)removing effect are investigated.The results show that under the following conditions:total monomer mass fraction is 30％,n (DMC):n (MMA)=7:3,reaction temperature 75 ℃,initiator dosage 0.5％ and reaction time 8 h,the prepared P(DMC-MMA)has good flocculation effect.The maximum oil removing rate can reach 96％.In addition,the flocs do not adhere to the walls.