高渗透性环氧树脂防水防腐涂料的制备及性能  

Preparation and Performance of High Permeable Epoxy Waterproof and Anticorrosive Coating

作　　者：韦代东 曾娟娟 陈海基[1,2] WEI Daidong;ZENG Juanjuan;CHEN Haiji(Guangzhou Chemical Grouting Engineering Co,Ltd,CAS,Guangzhou 510650,China;Guangdong Research and Development Center of Chemical Grouting Engineering Technology,Guangzhou 510650,China)

机构地区：[1]中科院广州化灌工程有限公司,广州510650 [2]广东省化学灌浆工程技术研究开发中心,广州510650

出　　处：《中国塑料》2021年第2期8-13,共6页China Plastics

摘　　要：以双酚A型环氧树脂(E51)、糠醛、丙酮、酚醛改性胺、2,4,6-三(二甲氨基甲基)苯酚(DMP-30)为主要原料,制备了一种高渗透性环氧树脂防水防腐涂料。分析了其反应机理,考察了不同成膜助剂对涂料成膜性能的影响,测试了该涂料在不同强度等级的混凝土构件表面的渗透深度及其他基本性能。结果表明,BYK-333流平剂改性后的涂料在混凝土表面具有良好的成膜性,在干基面、潮湿基面的粘接强度分别达到4.5、3.6 MPa,在C30混凝土表面的最大渗透深度可达5 mm,具有良好的耐化学介质性。A permeable epoxy coating was prepared through a combination of bisphenol-A epoxy resin(E51),furfural,acetone phenolic modified amine,2,4,6-tris(dimethylaminomethyl)phenol(DMP-30)and other additives,and its reaction mechanism was analyzed.The influence of different additives on the film-forming ability of the coating was discussed.The depth of penetration to the surface of concretes with different strength grades along with other basic properties was also investigated.The results indicated that the BYK-333-modified coating exhibited an optimum film-forming ability and good permeability.The coating achieved bonding strength of 4.5 and 3.6 MPa on the dry base concrete surface and the wet base concrete surface,respectively.Moreover,the coating gained a maximum penetration depth of 5 mm on the C30 concrete surface,indicating good chemical resistance.

关 键 词：高渗透性 环氧树脂 涂料 助剂 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]