- 目录
- 化学建材
- 首页
减缩型聚羧酸减水剂的合成研究
作者：林艳梅，张小芳，史艳娜
（科之杰新材料集团有限公司，福建 厦门 361101）
摘要：将丙烯酸与一缩二丙二醇酯化得到的减缩功能单体P，再与丙烯酸、异戊烯醇聚氧乙烯醚（TPEG）共聚制得减缩型聚羧酸减水剂（PCE1）。研究了普通型聚羧酸减水剂（Point-MS）及合成的PCE1对水泥基材料收缩性能和混凝土收缩性能的影响。结果表明，合成减缩型聚羧酸减水剂PCE1的综合性能优异，具有分散性能佳、保坍能力强和减缩等功能。
关键词：减缩；聚羧酸减水剂；合成研究
中图分类号：TU528.042+.2 文献标识码：A 文章编号：1001-702X（2020）12-0145-03
Synthetic research of shrinkage reducing polycarboxylate superplasticizer
LIN Yanmei，ZHANG Xiaofang，SHI Yanna
（KZJ New Materials Group Co. Ltd.，Xiamen 361101，China）
Abstract：Shrinkage reducing polycarboxylate superplasticizer was synthesized with acrylic acid，isopentenol polyoxyethylene ether（TPEG） and shrinkage-reducing monomer P. Monomer P obtained by esterification of acrylic acid with dipropylene glycol. The effects of ordinary polycarboxylate superplasticizer（Point-MS） and the synthetic shrinkage-reducing polycarboxylate superplasticizer（PCE1） on the shrinkage properties of cement-based materials and concrete were studied. The research shows that the synthetic shrinkage-reducing polycarboxylate superplasticizer has excellent comprehensive properties，good dispersing performance，strong slump retention，and shrinkage reduction.
Key words：shrinkage reducing，polycarboxylate superplasticizer，synthesis research