摘要
以活性炭为载体,采用浸渍-化学还原法制备了硅氢加成用负载型铂催化剂,研究配方工艺对铂/炭催化剂结构、催化活性等性能的影响规律。结果表明:当铂的负载量为1%时,活性炭浸渍吸附氯铂酸的最佳时间为2 h;采用优化配方工艺条件制得的Pt/C催化剂对加成型液体硅胶具有适宜的催化活性,可较好满足特定有机硅灌封胶的应用需求。
A supported platinum catalyst for hydrosilylation was prepared by impregnation-chemical reduction method with active carbon（AC） as vector.The effects of the formulation on the structure,catalytic activity and other properties of the Pt/AC catalyst were investigated.The results show that when the platinum content is 1%,the optimum time for AC absorbing chloroplatinic acid is 2 hours.The Pt/AC catalyst prepared under an optimum formulation condition for addition type liquid silicone has proper catalytic activity,which can meet the application requirement of specific organosilicon potting compound.
出处
《绝缘材料》
CAS
北大核心
2011年第3期22-25,29,共5页
Insulating Materials
基金
中国工程物理研究院科学技术基金重点项目(2009A0302018)
