MA/MAC/AA/AMPS高效共聚物阻垢剂的制备

Synthesis of Efficient MA/MAC/AA/AMPS Copolymer Scale Inhibitor

在工业生产中,冷却水循环系统的结垢会导致生产效率降低、生产成本增加以及生产不能正常进行,而加入阻垢剂是解决这一难题的有效、经济、简便的方法。因此,以马来酸(MA)、丙烯酸甲酯(MAC)、丙烯酸(AA)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为单体,水为溶剂,过硫酸钾作为引发剂合成了一种新型四元共聚物阻垢剂。研究了不同聚合条件下生成共聚物对碳酸钙阻垢性能的影响,确定了最佳合成条件。结果表明,在单体摩尔n(MA)∶n(AA)∶n(AMPS)∶n(MAC)=8∶5∶3∶4,在引发剂质量为单体总质量的7.5%,反应温度85℃,反应时间3h条件下,共聚物对碳酸钙阻垢效率达94.5%以上。

In industrial production,the scale in circulating cooling water systems can cause the reduction of production efficiency,the increasing of cost and unstable production,but recent researches found that adding scale inhibitor is an effective,economic and simple way to solve this problem.A new scale inhibitor of quaternary copolymer of Acylic acid（AA）,maleic anhydride（MA）,2-acryloylamino-2-methyl propane sulfonic acid（AMPS）and methyl acrylate（MAC）was synthesized.And water was used as solvent polymerization in the research.Different polymerizaion conditions of the new scale inhibitor to the properties of calcium carbonate scale inhibition effect were studied.The optimized conditions were found：n（MA）∶n（AA）∶n（AMPS）∶n（MAC）=8∶5∶3∶4,the mass ratio of initiator to monomers 7.5%,reaction temperature 85℃,reaction time 3h.The scale inhibiting capacity was more than 94.5%.