改性有机硅耐热涂料的制备与性能研究  

A Study on Preparation and Properties of Modified Polysiloxane Heat Resistant Coatings

作　　者：张青[1,2,3] 赵洁 任海涛 王红娜 刘秋艳 孙长江 高歌 ZHANG Qing;ZHAO Jie;REN Hai-tao;WANG Hong-na;LIU Qiu-yan;SUN Chang-jiang;GAO Ge(Department of Chemistry, Tangshan Normal University, Tangshan 063000, China;Tangshan Sanyou Silicon Industry Co., Ltd.,Tangshan Sanyou Group Co., Ltd., Tangshan 063305, China;College of Chemistry, Jilin University, Changchun 130012, China)

机构地区：[1]唐山师范学院化学系,河北唐山063000 [2]唐山三友集团有限公司唐山三友硅业有限责任公司,河北唐山063305 [3]吉林大学化学学院,吉林长春130012

出　　处：《唐山师范学院学报》2019年第3期9-12,共4页Journal of Tangshan Normal University

基　　金：唐山师范学院科学研究基金项目(2016B02)

摘　　要：首先采用烷氧基硅烷为原料制备有机硅预聚体,然后用环氧树脂对其进行改性,并进行结构表征。以改性有机硅树脂为主要成膜物质,加入一定比例混合的改性纳米二氧化钛/滑石粉/高岭土作为耐热填料以及各种助剂制备改性有机硅耐热涂料。研究填料的用量对所得涂料力学性能和耐高温性能的影响。结果表明,当改性纳米二氧化钛用量为7.5-10份时,涂料的耐高温性能、附着力、柔韧性、硬度和抗冲击性能最佳。Silicone prepolymers were firstly prepared by using alkoxysilanes as raw materials, and then modified with epoxy resin. The epoxy-modified polysiloxane resins were prepared and characterized. Finally, the modified polysiloxane heat resistant coatings were prepared with the modified polysiloxane as a major film-forming substance and with modified nano-TiO2/Talc powder/kaolin as heat resistant fillers. Effect of the amount of fillers on the mechanical properties and heat resistance of the resulting coatings was discussed. The results show that when the amount of heat resistant fillers was 7.5-10 parts, the coatings have excellent high heat resistance, adhesion, flexibility, hardness and impact resistance.

关 键 词：有机硅 环氧树脂 涂料 耐热性能 力学性能 

分 类 号：TQ32[化学工程—合成树脂塑料工业]