一种高保坍型聚羧酸超塑化剂的制备与应用  

Preparation and application of a polycarboxylate superplasticizer with highly slump retaining ability

作　　者：陈文红 邓磊 蒋禹 沈建荣 CHEN Wenhong;DENG Lei;JIANG Yu;SHEN Jianrong(Guizhou Prominent Science New Materials Co.Ltd.,Longli 551206,China)

机构地区：[1]贵州科之杰新材料有限公司,贵州龙里551206

出　　处：《新型建筑材料》2020年第7期89-91,94,共4页New Building Materials

摘　　要：以改性聚醚(TPEG)、丙烯酸(AA)、丙烯酸羟丙酯(HPA)、封端酰胺磷酸酯(CAP)及白砂糖(H)为主要原料,在引发剂作用下,于40℃合成一种高保坍型聚羧酸超塑化剂。试验结果表明,该聚羧酸超塑化剂对水泥的分散性及分散保持性良好,并能有效改善混凝土的保坍性。In this paper,a kind of polycarboxylate superplasticizer with highly slump-retaining ability was synthesized by modified polyether(TPEG),acrylic acid(AA),hydroxypropyl acrylate(HPA),capped amide phosphate(CAP) and granulated sugar(H)at 40 centigrade under the action of catalyst. Results showed that the polycarboxylate superplasticizer had effective improvement of slump and dispersion ability of concrete and it had good dispersion ability for cement.

关 键 词：封端酰胺磷酸酯 聚羧酸超塑化剂 合成 混凝土 

分 类 号：TU528.042.2[建筑科学—建筑技术科学]