聚醚类减水剂的改性及性能研究  

Study on the modification and properties of polyether-type water reducer

作　　者：张新民[1] 霍利利 傅雁[1] 虞亚丽 

机构地区：[1]苏州弗克新型建材有限公司,江苏苏州215008

出　　处：《混凝土》2010年第12期61-64,共4页Concrete

摘　　要：对合成普通聚醚类减水剂的原料—烯丙基聚乙二醇进行改性,然后用改性过的烯丙基聚乙二醇与马来酸酐、磺酸基单体等原料通过自由基水溶液聚合制备一种改性聚醚类减水剂。通过对改性聚醚类减水剂与普通聚醚类减水剂的对比发现:改性聚醚减水剂具有适宜的含气量,较高的减水率及不错的坍落度保持性。另外,对改性聚醚类减水剂与其他种类减水剂复配后的性能也进行了研究。A modified polyether-type water reducer was synthesized by copolymerizing terminated allyl polyoxyethylene ether、maleic anhydride and sulfonic monomer,and from the comparison of the modified polyether-type water reducer and ordinary polyether-type water,we found that：the modified polyether-type water reducer has appropriate air entrained volume、high water-reducing rate and fine slump-retaining ability.Besides,the performance of modified polyether-type superplasticizer mixed with other types of water reducers was also studied.

关 键 词：聚醚类 改性 烯丙基聚乙二醇 

分 类 号：TU528.042.2[建筑科学—建筑技术科学]