三氟丙基甲基二甲氧基硅烷在氟硅橡胶中的应用  

Application of Trifluoropropyl Methyl Dimethoxy Silane in Fluorosilicone Rubber

作　　者：朱艳艳 邵珺[1] 叶红富 尤小姿[1] 杨连科 ZHU Yan-yan;SHAO Jun;YE Hong-fu;YOU Xiao-zi;YANG Lian-ke(Zhejiang Xin′an Chemical Industry Group Co.,Ltd.,Hangzhou 310000,Zhejiang)

机构地区：[1]浙江新安化工集团股份有限公司,杭州310000

出　　处：《有机硅材料》2021年第6期45-49,共5页Silicone Material

摘　　要：采用三氟丙基甲基二甲氧基硅烷(TMDS)为结构化控制剂,用于处理白炭黑表面的羟基,并应用于氟硅橡胶中,考察了氟硅橡胶的吃粉效率、物理性能、耐油性能和耐热性能,并与采用普通结构化控制处理剂二甲基二甲氧基硅烷制得的氟硅橡胶进行对比。结果表明,TMDS作为结构化控制剂能有效降低白炭黑表面的羟基含量,提升胶料捏合时的吃粉效率,赋予氟硅橡胶更出色的力学性能、耐油性能,但耐热性能略有下降。随着氟硅橡胶配方中TMDS用量的增加,氟硅橡胶的拉伸性能先升后降,拉断伸长率增加,且压缩永久变形下降。The trifluoropyl methyldimethoxysilane(TMDS)was used as constitution controller to treat the hydroxyl groups on the surface of silica,and then the treated silica was applied on fluorosilicone rubber.The powder-eating efficiency,physical properties,oil resistance and heat resistance of fluorosilicone rubber were investigated and compared with that of fluorosilicone rubber prepared with dimethyldimethoxysilane.The results show that TMDS can effectively reduce the hydroxyl content on the surface of silica,improve the powder-eating efficiency in kneading.The fluorosilicone rubber exhibits a good mechanical properties and oil resistance,while decreases the heat resistance slightly.With the increase of TMDS in fluorosilicone rubber,the tensile properties of fluorosilicone rubber increases first and then decreases,besides its elongation at break increases,and the compression set decreases.

关 键 词：白炭黑 表面处理 氟硅橡胶 三氟丙基 

分 类 号：TQ333.93[化学工程—橡胶工业]