室温硫化硅橡胶印模材料的制备  

Synthesis of room temperature vulcanized silicone rubber impression materials

作　　者：丛翔宇[1] 徐英男[1] 刘彦军[1] CONG Xiangyu XU Yingnan LIU Yanjun(School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China)

机构地区：[1]大连工业大学轻工与化学工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2016年第6期445-448,共4页Journal of Dalian Polytechnic University

摘　　要：以乙烯基硅油、含氢硅油、改性二氧化硅粉为原料,液状石蜡为流变助剂,在铂催化剂的作用下,制备了硅橡胶;研究了原料和流变助剂用量对硅橡胶性能的影响,并对硅橡胶的性能进行了表征。结果表明,当含氢硅油为4.5%、乙烯基硅油为30%、改性二氧化硅粉36%、液状石蜡为8%、催化剂为0.03%时,制备的硅橡胶强度高(0.46kN/m),热稳定性好,室温固化时间短,可用作印模材料。Silicone rubber was prepared using vinyl silicone oil,hydrogen-containing silicone oil,modified silicon powder as materials,liquid paraffin as rheological promoter and Pt as catalyst.The effects of the materials and rheological promoter concentrations on the properties of silicone rubber were studied,and the performance of silicone rubber was analyzed.The prepared silicone rubber showed higher strength（0.46 kN/m）,good thermal stability and short curing time when the hydrogen silicone,vinyl silicone oil,modified silicon powder and the liquid paraffin concentrations were 4.5%,30%,36%,8%respectively,and the catalyst dosage was 0.03%,which could be used in impression material preparation.

关 键 词：硅橡胶 印模材料 室温固化 

分 类 号：TQ333.93[化学工程—橡胶工业]