以丙烯酸为单体,采用溶液聚合的工艺路线,通过加入一定量的链转移剂合成了固含量高达48%、分子量为10~3量级的聚丙烯酸及其钠盐。研究了引发剂用量、反应温度、链转移剂用量对相对分子量的影响。初步探讨了其助洗性能。
以丙烯酸和马来酸酐为单体,以过硫酸钾和亚硫酸氢钠为引发剂,采用水溶液聚合法,合成了一种STPP无磷替代品丙烯酸和马来酸酐共聚物;以L_(16)(4~5)正交实验的结果,采用误差反向传播EBP(Error Back Propagation)算法,完成了神经网络的学习,据此预测了单体配比、引发剂用量、反应温度、反应时间、滴加单体时间对助洗性能的影响。在给定相对误差范围内,预测最佳产品的合成条件:MA占单体总质量30%,引发剂单体质量比为4.5%,反应温度为85℃,反应时间1.5h,单体滴加时间为20min;实验结果表明BP神经网络在合成无磷助洗剂中有较好的离线学习功能,可以较少的实验次数获得更多的信息,指导合成工作。测定了聚羧酸盐类无磷洗涤助剂的助洗性能。
【英文摘要】
The synthetic technology of acrylic-acid polymer sodium salt in aqueous system added chain transfer agent was detailed, which the quantity of solid runs ahead of 48% and the molecular weight is about few thousands quantitative series .the effect of initiator amount and chain transfer agent amount on molecular weight were studied.The synthesis of phosphorus free detergent additives was studied using acrylic acid and maleic anhydride as polymeric monomer in potassium persulfate and sodium hydyosulfite being i...