热硫化型硅橡胶海绵发泡机理浅析  

A study on foaming mechanism of thermovulcanizated silicone sponge compound

作　　者：雷海军[1] 王进文[1] 

机构地区：[1]西北橡胶塑料研究设计院,陕西咸阳712023

出　　处：《弹性体》2002年第1期24-30,共7页China Elastomerics

摘　　要：以热硫化型硅橡胶材料为基础 ,运用硫化发泡仪将硫化曲线与发泡曲线相结合 ,分析、解释了硅橡胶海绵的发泡机理。并且对硅橡胶海绵较普通橡胶难以发泡成型的原因进行了探讨。采用 2种不同热分解温度的有机过氧化物并用 ,解决了硅橡胶海绵硫化速度与发泡速度匹配以及硫化程度相统一的问题。Based on the thermovulcanized silicone rubber, and combined curing with foaming curve resulted from Vulca-foammeter, the paper studied the matching of curing rate and foaming rate of silicone sponge compound,otherwise the paper discussed the causes why silicone sponge compound is more difficult to foam than traditional rubber sponge compound. By means of the coordinative effect of two organic peroxides with different decomposing temperature, the curing rate and foaming rate of silicone sponge compound are matched well.

关 键 词：热硫化型 硅橡胶 海绵 发泡机理 

分 类 号：TQ337.3[化学工程—橡胶工业] TQ333.93