In this paper,the EPEG mud-resistant polycarboxylic acid water reducing agent KN-E was synthesized by free rad-ical copolymerisation reaction under constant temperature with ethylene glycol monovinyl polyglycol ether(EPEG)as the macromonomer,and small monomers such as acrylic acid(AA)and isomer ester(MA).The effect of KN-E mud-resistant polycar-boxylic acid water reducing agent synthesized under different reaction conditions on the dispersion and adaptability of cement was investigated by using cement paste test,and the mud-resistant property of KN-E mud-resistant polycarboxylic acid water reducing agent was verified by concrete test.The results showed that the mud-resistant polycarboxylic acid water reducing agent KN-E pre-pared when the monomer ratio was n(AA)∶n(TPEG)∶n(MA)=4.0∶1∶0.2 had good dispersion properties and good adaptability,and showed good mud-resistant properties and good workability when it was applied to concrete,and it contributed to the early concrete strength development.
关键词
EPEG/聚羧酸减水剂/功能单体/抗泥性能
Key words
EPEG/polycarboxylic acid water reducing agent/functional monomer/mud resistance
维普
万方数据