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一种新型聚羧酸保坍剂的合成及性能研究

作者:官梦芹,方云辉,蒋卓君,陈小路,代柱端,钟丽娜

关键字:聚羧酸保坍剂,保坍性,敏感性,和易性

 
(科之杰新材料集团有限公司,福建 厦门  361101)
 
    摘要:采用马来酸酐(MAH)、乳酸甲酯和对甲苯磺酸(PTS)进行酯化,将得到的酯化产物与丙烯酸羟丙酯(HPA)、4-羟丁基乙烯基聚氧乙烯醚(VPEG)、引发剂(APS)和链转移剂(TGA)一起共聚合成新型聚羧酸保坍剂。性能测试结果表明,该保坍剂具有较好的保坍性能、和易性和敏感性。
    关键词:聚羧酸保坍剂;保坍性;敏感性;和易性
    中图分类号:TU528.042       文献标识码:A      文章编号:1001-702X(2017)05-0025-04
 
Study on preparation and properties of a new type of polycarboxylate slump retaining agent
GUAN Mengqin,FANG Yunhui,JIANG Zhuojun,CHEN Xiaolu,DAI Zhuduan,ZHONG Lina
(KZJ New Materials Group Co.,Ltd.,Xiamen 361101,China)
    Abstract:A new polycarboxylate slump retaining agent was synthesized with two steps. The first,esterification of MAH(maleic anhydride),Methyl lactate and PTS. Then get the esterification products. The second,using the esterification products,hydroxypropyl acrylate(HPA),4-hydroxybutyl vinyl ether(VPEG) as monomers,the persulfate(APS) as complex initiator,and thioglycolic acid(TGA) as chain transfer agent. The performance test shows that the new polycarboxylate slump retaining agent has good slump loss resistant property,good workability and sensitivity.
    Key words:polycarboxylate slump retaining agent,slump loss resistant property,sensitivity,workability