室温固化长期耐300℃的高强度硅橡胶型胶黏剂的研制  

Development of a Room Temperature Curing Silicone Rubber Adhesive with High Strength and Resistance to 300℃

作　　者：吕虎[1] 孙东洲[1,2] 孔宪志[1,2] 张立颖[1] 李岳[1] 于国良[2] 孙禹[1,2] 王晶[1,2] 

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040 [2]黑龙江省科学院高技术研究院,黑龙江哈尔滨150020

出　　处：《化学与粘合》2017年第3期180-184,共5页Chemistry and Adhesion

摘　　要：选择甲基乙烯基硅橡胶(110-2)作为主要原料,以适量苯基马来酰亚胺基硅树脂、填料、催化剂、交联剂、乙烯基硅油等制备了室温固化的有机硅胶黏剂。研究了提高有机硅胶黏剂粘接性能和耐高温性能的方法,包括填料的表面处理、添加硅氮烷、耐热添加剂(氧化钛、二氧化锡、氧化铁)、苯基马来酰亚胺基硅树脂、高含氢硅树脂等。结果表明,填料经表面改性可提高胶黏剂的耐高温性能;耐热添加剂也可以有效提高胶黏剂的耐热性能,其中氧化铁、苯基马来酰亚胺基硅树脂和高含氢硅树脂耐热效果最佳。综上实验制备了一种室温剪切强度达7.8MPa,300℃剪切强度为3.2MPa,300℃老化24h后剪切强度达3.0MPa的高强度耐热有机硅胶黏剂。The room temperature curing addition silicone adhesives（ASA） was prepared with dimethyl silicone rubber（110-2） as matrix and other raw materials, such as phenyl maleimide silicone resin, fillers, catalysts, erosslinking agent and vinyl silicone oil, etc. The methods for improving the bonding performance and heat resistances of ASA were studied, including surface treatment on fillers, adding the Si-N, heat resistant additives （TiO2, SnO2, α-Fe2O3）, phenyl maleimide silicone resin and high-hydrogen contained silicon resin, etc. The results showed that both the surface treatment on fillers and adding heat resistant additives could improve the heat resistance of the adhesive, and the α-Fe2O3, phenyl maleimide silicone resin and high-hydrogen contained silicone resin had the best effects. In conclusion, a heat resistant silicon rubber adhesives with high strength was prepared, its shear strength was 7.64MPa and 3.2MPa at room temperature and at 300α respectively; and after aging for 24 hours at 300α, the shear strength was 3.0MPa.

关 键 词：有机硅胶黏剂 加成型 耐热性 

分 类 号：TQ433.4[化学工程]