无卤阻燃硅烷交联聚乙烯／橡胶的制备及性能  

Preparation and properties of halogen-free flame retardant and silane crosslinked polyethylene/elastomer composites

作　　者：焦传梅[1] 王正洲[1] 

机构地区：[1]中国科学技术大学火灾科学国家重点实验室,安徽合肥230026

出　　处：《合成树脂及塑料》2005年第3期14-17,共4页China Synthetic Resin and Plastics

基　　金：国家自然科学基金(50273036);国家重点基础研究专项基金(2001CB409600)。

摘　　要：研究了氧氧化镁(MH)和微胶囊化红磷(MRP)不同添加量及不同配比对硅烷交联聚乙烯(SXPE)体系的氧指数、热释放速率、发烟量等燃烧性能的影响。结果表明,MRP对MH阻燃SXPE有协效作用,添加适量的MRP,SXPE/MH/MRP体系(PRMH_2)的氧指数最高达37.5%三元乙丙橡胶改善SXPE/MH体系力学性能的同时.阻燃性能也大幅度提高,阻燃级别由UL—94 V-1级提高到VL—94The effect of magnesium hydroxide (MH) content, microcapsulated red phosphorous (MRP) content, the ratio of MH/MRP and addition of ah elastomer on the combustion characteristics of the silane crosslinked polyethylene (SXPE) composites were studied by the limited oxygen index (OI) and conical calorimeter test. The results show that MRP plays a role of flame retardant synergist; the OI value of SXPE/MH/MRP system attains up to 37.5% after adding proper amount of MRP. Moreover, the partial replacement of PE with ethylene-propylene-diene monomer (EPDM) in the SXPE/MH composite improves not only the mechanical properties, but also the flame retardance, which is upgraded from UL-94 V-1 to UL-94 V-0.

关 键 词：硅烷交联聚乙烯 无卤阻燃 制备 微胶囊化红磷 三元乙丙橡胶 热释放速率 MRP 氢氧化镁 燃烧性能 协效作用 力学性能 阻燃性能 氧指数 添加量 发烟量 H体系 阻燃级 大幅度 

分 类 号：TQ330.7[化学工程—橡胶工业]