乙烯基MQ 树脂对有机硅涂层的性能调控  

Performance Regulation of Vinyl MQ Resin for Silicone Coatings

作　　者：罗孝炯 梁晟源 桂雪峰 黄振祝 胡继文[1,2,3] LUO Xiao-jiong;LIANG Sheng-yuan;GUI Xue-feng;HUANG Zhen-zhu;HU Ji-wen(Key Laboratory of Electronic Organic Polymer Materials of Guangdong Province,Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China;University of Chinese Academy of Sciences,Beijing 100049,China;Guoke Guanghua(Nanxiong)New Materials Research Institute Co.,LTD.,Nanxiong 512400)

机构地区：[1]中国科学院广州化学研究所广东省电子有机聚合物材料重点实验室中国科学院新型特种精细化学品工程实验室,广东广州510650 [2]中国科学院大学,北京100049 [3]国科广化(南雄)新材料研究院有限公司,广东南雄512400

出　　处：《广州化学》2020年第6期52-57,共6页Guangzhou Chemistry

基　　金：广州市科技计划(201802010018)。

摘　　要：在酸性催化剂的作用下,使用六甲基二硅氧烷、正硅酸乙酯、甲基乙烯基二甲氧基硅烷,通过调整封端剂用量,在脱水缩合下获得了乙烯基含量不同的MQ硅树脂。将合成的乙烯基MQ树脂作为功能添加剂添加到有机硅离型剂中,充分搅拌后,以格拉辛纸作为基材进行涂布操作,结果表明当添加乙烯基含量为2%的MQ树脂,剥离力提高30%~40%,同时其热固化速度快,热固化效率达到最高,End-Onset为3.28℃,有利于提高涂布效率;当添加乙烯基含量为1%的MQ树脂时,轻微脱硅时间提高45.45%,严重脱硅时间提高53.54%,说明其对离型性能具有明显的调控效果。Under the action of acidic catalyst,MQ silicone resin was synthesized by hydrolysis and condensation of hexamethyldisiloxane,ethyl n-silicate and methyl vinyl dimethoxy silane.Its different vinyl content was adjusted by the amount of capping agent.The formed vinyl MQ resin as functional additives was added into the silicone release agent,after fully stirred,coated on the gration paper substrates.The results indicated that the stripping force increased by 30%~40%when MQ resin with 2%vinyl content was added,and its thermal curing speed and heat curing efficiency reach the top,End-Onset was 3.28℃,and it is conducive to improve the efficiency of coating;When adding MQ resin with a vinyl content of 1%,the time of slight desilication increased by 45.45%and the time of severe desilication increased by 53.54%,shows that it has an obvious effect on the release performance.

关 键 词：乙烯基MQ树脂 有机硅涂层 有机硅离型剂 性能调控 剥离力 

分 类 号：TQ264.1[化学工程—有机化工]