摘要
在乙烯－丙烯酸酯橡胶（ＶＡＭＡＣ）无卤低烟阻燃电缆胶料配合中，主要填料氢氧化镁及其表面处理剂硬脂酸锌的用量是关键，硫化体系也较重要。胶料优化配方为：ＶＡＭＡＣ１００；２，５－二甲基－２，５－双（叔丁基过氧）己烷３．０～３．３；Ｎ，Ｎ′－间亚苯基双马来酰亚胺和三（甲基丙烯酸三羟甲基）丙酯０．８～１．０。硬脂酸锌处理过的陶土＋ＬＥＥ白滑粉５０～６０；加工助剂１２～１４；硬脂酸锌１．２～１．４；氢氧化镁４３～４７；其它６～７。胶料阻燃、低烟和物理机械性能良好，成品电缆通过ＧＢ１２６６６—９０燃烧试验。
The loading level of the main filler,magnesium hydroxide and its surface treating agent,zinc stearate is the most important in the halogenless,low fume and flame retardant VAMAC cable compound,and a special attention should be paid to the curing system.The optimized compounding formula is as follows:VAMAC 100;2,5 dimethyl 2,5 bis(tert butyl perox) hexane 3.0～3.3;N,N′ m phenylene bismaleimide and trimethylol propane trimethacrylate 0.8～1.0;clay treated with zinc stearate+LEE slippery white powder 50～60;processing aids 12～14;zinc stearate 1.2～1.4;magnesium hydroxide 43～47;others 6～7.The resultant compound features flame retardant,low fume and good physical properties.The finished cable has passed GB12666—90 Burning Test and is in accordance with the requirements in IEC 502(1994)
出处
《橡胶工业》
CAS
北大核心
1997年第2期75-79,共5页
China Rubber Industry
关键词
电缆
低烟
阻燃
氢氧化镁
填充
混炼胶
配方
VAMAC,cable,low fume,flame retardant,magnesium hydroxide,zinc stearate
