高韧性环氧防护涂层低温抗裂性能试验及应用研究  

Experimental Study on Cracking Resistant of Epoxy Resin Coating at Low Temperature and Its Application in Hydraulic Engineering

作　　者：李敬玮[1,2] 赵波[1,2] 瞿杨[1,2] 张福成[1,2] 

机构地区：[1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038 [2]水利部水工程建设与安全重点实验室,北京100038

出　　处：《水力发电》2014年第3期90-92,共3页Water Power

基　　金：中国水利水电科学研究院科研专项结集1352项目

摘　　要：在环氧树脂低温增韧研究的基础上，开发了YEC高韧性环氧防护涂层材料。对新型材料进行300次冻融循环试验，检测了材料的耐低温抗裂性能，材料与混凝土的粘结强度大于3MPa；通过20次-40～60℃低温循环试验，测试了材料的断裂韧性，材料在低温下不开裂或脱空。将新型材料应用于吉林台一级水电站大坝面板防护，试验结果表明该涂层材料适合于寒冷地区的混凝土表面封闭处理及薄层防护工程。Based on the experimental study of the toughness of epoxy resin, the YEC epoxy resin coating is developed. The performances of YEC epoxy resin coating at low temperature are studied by 300 freezing and thawing tests and the tests show the adhesion strength between coating and concrete is more than 3 MPa. The coating also passes 20 thermal cycle tests between -40℃ to 60 ℃ without any crack or delamination. The application of YEC epoxy resin coating in Jilintai CFRD indicate that the coating is fit to the repairing and reinforcement of concrete structures in cold areas.

关 键 词：环氧树脂 高增韧 混凝土修补 涂料 

分 类 号：TV46[水利工程—水工结构工程]