硫化剂配比对硅橡胶泡沫材料发泡效果的影响  

Influence of Ratio of Vulcanizing Agent BPO/DCP on Foaming Effect of Silicone Rubber Foam

作　　者：许丰瑞 李刚[1] 孙希路 马凤国[1] XU Feng-rui;LI Gang;SUNX Hu;MAFeng-guo(Key Laboratoiy of Rubber-plastics,Qingdao University of Science ＆ Technology,Qingdao 266042, Shandon)

机构地区：[1]青岛科技大学、橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《有机硅材料》2017年第6期425-429,共5页Silicone Material

基　　金：四川省科技支撑计划(2015GZ0359)

摘　　要：以甲基乙烯基硅橡胶为生胶,白炭黑为填料制得混炼胶,以过氧化二苯甲酰(BPO)和过氧化二异丙苯(DCP)为硫化剂,采用二次硫化工艺制备了硅橡胶泡沫材料。考察了硫化剂BPO与DCP的配比对硅橡胶泡沫材料性能及发泡效果的影响。结果表明,相比一次硫化工艺,二次硫化工艺能有效提高硅橡胶泡沫的力学性能并达到较好的发泡效果。当BPO与DCP的质量比为0.8∶4时,制得的硅橡胶泡沫材料泡孔相对较大,且泡孔分布较均匀、泡孔壁较薄、孔隙度高,发泡效果最佳。The silicone rubber foam was prepared by twestage vulcanization with methylvinylsilicone rub-ber as the basic rubber,silica as the filler,curing agent BPO/DCP as curing agent. Effect of the ratio of cu-ring agent BPO/DCP on the properties and foaming effect of the silicone rubber foam was investigated. Results show that compared to one-stage curing process,the mechanical property of the silicone rubber foam has good foaming in the two-stage curing process. When BPO/DCP is 0.8/4 parts,the cell is relatively large and well distributed,which has thin wall,high porosity,and good foaming.

关 键 词：硅橡胶 泡沫 发泡 硫化 

分 类 号：TQ333.93[化学工程—橡胶工业]