PREPARATION OF HIGH-TEMPERATURE VULCANIZED SILICONE RUBBER OF EXCELLENT MECHANICAL AND OPTICAL PROPERTIES USING HYDROPHOBIC NANO SILICA SOL AS REINFORCEMENT  

作　　者：傅强 

机构地区：[1]College of Polymer Science and Technology,Sichuan University,State Key Laboratory of Polymer Materials Engineering

出　　处：《Chinese Journal of Polymer Science》2008年第4期495-500,共6页高分子科学（英文版）

基　　金：the National Natural Science Foundation of China(Nos.50533050,20490220 and 20404008);the Special Funds for Major State Basic Research Projects of China(No.2003CB615600)

摘　　要：Hydrophobic nano silica sol(HNSS)was incorporated into polyvinylmethylsiloxane to prepare reinforced high- temperature vulcanized(HTV)silicone rubber.HTV silicone rubber filled with 40 phr HNSS showed excellent mechanical and optical properties:the tensile strength reached 11.7 MPa and the optical transmittance was higher than 90%.Possible reasons for reinforcement and transparency were discussed on the basis of the bound rubber percentage,total crosslink density,and SEM analysis.Our work suggests that HNSS...Hydrophobic nano silica sol(HNSS)was incorporated into polyvinylmethylsiloxane to prepare reinforced high- temperature vulcanized(HTV)silicone rubber.HTV silicone rubber filled with 40 phr HNSS showed excellent mechanical and optical properties:the tensile strength reached 11.7 MPa and the optical transmittance was higher than 90%.Possible reasons for reinforcement and transparency were discussed on the basis of the bound rubber percentage,total crosslink density,and SEM analysis.Our work suggests that HNSS...

关 键 词：HTV silicone rubber REINFORCEMENT TRANSPARENCY HNSS Air-bubbles 

分 类 号：TQ333.93[化学工程—橡胶工业]