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聚羧酸减水剂的试验研究
引用本文:廖国胜,艾涛,肖煜,潘会. 聚羧酸减水剂的试验研究[J]. 建材世界, 2014, 0(3): 9-12
作者姓名:廖国胜  艾涛  肖煜  潘会
作者单位:武汉科技大学城市建设学院,武汉430065
基金项目:湖北省自然科学基金(2010CDZ062)
摘    要:采用甲基烯丙基聚氧乙烯醚(TPEG)与不饱和羧酸在氧化还原体系下合成聚羧酸减水剂。研究了反应温度、反应时间、单体与不饱和羧酸摩尔比(酸醚比)、引发剂用量及分子量调节剂用量对聚羧酸减水剂性能的影响。在n(AA)∶n(Itaconic acid)∶n(Thioglycolic acid)∶n(TPEG)=1.7∶0.23∶0.005∶1,m(initiator)∶m(TPEG)=0.20%、反应时间4 h、反应温度45℃时,聚羧酸减水剂各项性能最佳。

关 键 词:聚羧酸  聚羧酸减水剂  试验条件  红外光谱  表征

Experimental Research on Polycarboxylic Slump-retaining Admixture
LIAOGuo-sheng,AI Tao,XIAOYu,PAN Hui. Experimental Research on Polycarboxylic Slump-retaining Admixture[J]. The World of Building Materials, 2014, 0(3): 9-12
Authors:LIAOGuo-sheng  AI Tao  XIAOYu  PAN Hui
Affiliation:(School of Urban Construction,Wuhan University of Science and Technology, Wuhan 430070, China)
Abstract:Adopting methyl allyl polyoxyethylene ether (TPEG)and unsaturated carboxylic acid throught REDOX system synthetize the polycarboxylic slump-retaining admixture.The impact factors were researched of temperature,re-action time,acid alcohol ratio,dosage of initiator and molecular regulator to the polycarboxylic superplasticizer with slump retaining.In the circumstance of n(AA)∶n(Itaconic acid)∶n(Thioglycolic acid)∶n(TPEG)=1.7∶0.23∶0.005∶1,m(initiator)∶m(TPEG)=0.20%,reaction time is 4 h and temperaure is 45 ℃,the admixture has the best performance.
Keywords:acid  slump-retaining admixture  experimental condition  characterization
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