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요약정보
一种丙烯酸酯功能单体在聚羧酸减水剂中的应用研究
Resource Type
Academic Journal
Authors
莫晓红
;
何德灵
;
卢玉婷
;
李华彬
;
黎德聪
Source
广东建材 / Guangdong Building Materials
. 39(1):16-19
Subject
丙烯酸酯
聚羧酸减水剂
复合型
Language
Chinese
ISSN
1009-4806
Online Access
Find it @ DONGA
초록
以丙烯酸和丙三醇为原料制得丙烯酸酯,将制得的丙烯酸酯功能单体应用于羧酸聚合,制得复合型聚羧酸减水剂.实验研究了催化剂、阻聚剂、酸醇比对产物收率的影响,并对其合成的聚羧酸减水剂进行应用对比试验.结果表明,反应最佳条件为:丙烯酸与丙三醇的物质的量之比为2.2:1、对甲苯磺酸为催化剂用量为2%、对苯二酚为阻聚剂用量为0.5%、在75~85℃的条件下直接酯化反应8h.通过水泥净浆、混凝土应用试验表明,自制的复合型聚羧酸减水剂具有较高减水率和较好的混凝土坍落度保持性能.
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