水捕获法制备MQ硅树脂  

Preparation of MQ Silicone Resin by Water Capture Method

作　　者：彭笛 张群朝[1] 徐惠 孙丽丽 吴袁龙 蒋涛[1] 王磊 PENG Di;ZHANG Qun-chao;XU Hui;SUN Li-li;WU Yuan-long;JIANG Tao;WANG Lei(School of Materials Science and Engineering,Hubei University,Wuhan 430062,Hubei;Institute of Engineering Design,Air Force Research Institute,Beijing 100068)

机构地区：[1]湖北大学材料科学与工程学院,武汉430062 [2]空军研究院工程设计研究所,北京100068

出　　处：《有机硅材料》2019年第3期171-175,共5页Silicone Material

基　　金：湖北省重大项目(2017AAA115)

摘　　要：以四甲氧基硅烷、六甲基二硅氧烷为原料,醋酸为活性介质,浓硫酸为催化剂,通过水解缩合制得MQ硅树脂。采用红外光谱、核磁共振、热重分析和凝胶渗透色谱对产物进行了表征,结果表明:当M/Q值为0. 8,反应时间为3 h,反应温度为60℃时,MQ硅树脂的相对产率较高,且具有良好的耐热性能。MQ硅树脂的羟基含量随着M/Q值的增大而逐渐减小。MQ silicone resin was successfully synthesized by hydrolysis condensation with tetramethoxysilane (TMOS),hexamethyldisiloxane (MM) as the raw materials,acetic acid as the active medium and concentrated sulfuric acid as the catalyst.The structure of MQ silicone resin was analyzed by FT-IR,1 H-NMR,TGA and GPC.Results show that when the M/Q value is 0.8,reacting at 60℃ for 3 hours,the yield of MQ silicone resin is higher,and it has good heat resistance and controllable content of silicon hydroxyl.

关 键 词：活性介质 水解缩合 MQ硅树脂 

分 类 号：TQ324.21[化学工程—合成树脂塑料工业]