有机硅密封剂耐热性能研究  

Study on Heat-Resistant Property of Organic-Silicone Sealant

作　　者：范召东[1] 张鹏[1] 王恒芝[1] 成晓阳[1] 王景鹤[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《航空材料学报》2006年第3期203-206,共4页Journal of Aeronautical Materials

摘　　要：研究了室温硫化有机硅密封剂的耐热性能。通过对有机硅密封剂耐热老化后拉伸性能的测试,研究了硅橡胶生胶结构、填料、抗氧化剂(耐热增效剂)、硫化体系对有机硅密封剂的耐热性能的影响,确定了有机硅密封剂的配方,其耐热温度达350℃。The heat-resistant property of a room temperature-curable silicone sealant was studied in this paper.The tensile strength and elongation after hot air aging for 50~100h at 350℃ or 200h at 300℃ was determined.The relationship between the heat-resistant property of silicone sealant and the structure of polydiorganosiloxane,fillings,oxidation-resistant,curing ingredient was discussed.The result showed the prepared organic-silicone sealant could withstand 350℃.

关 键 词：耐350℃有机硅密封剂 拉伸性能 耐热性能 

分 类 号：TB42[一般工业技术]