有机蒙脱土协同氢氧化镁阻燃聚丙烯绝缘料的制备与性能研究

Study on Preparation and Properties of Organic Montmorillonite and Magnesium Hydroxide Flame Retardant Polypropylene Insulating Material

以聚丙烯(PP)和乙烯-醋酸乙烯酯共聚物(EVM)为基础树脂,制备了有机改性蒙脱土(O-MMT)协同氢氧化镁(MH)阻燃PP绝缘料。研究了O-MMT对MH阻燃PP绝缘料主要性能的影响,得出了性能合格的无卤阻燃PP绝缘料的配方:PP为62 phr,EVM为20 phr,马来酸酐接枝乙烯-辛烯共聚物(POE-g-MAH)为18 phr,MH为130 phr,O-MMT为3 phr,抗氧剂1010为0.3 phr,抗氧剂168为0.3 phr,金属钝化剂为0.1 phr。

Based on polypropylene（PP） and ethylene vinyl acetate copolymer（EVM） as the base resin, organic modified montmorillonite（O-MMT） synergistic magnesium hydroxide（MH） flame retardant PP insulating material was prepared. The influence of O-MMT on the main properties of MH flame retardant PP insulating material was studied, and the formula of halogen free flame retardant PP insulating material with good performance was obtained： PP 62 phr, EVM 20 phr, ethylene-octane copolymer grafting maleic anhydride（POE-g-MAH） 18 phr, MH 130 phr, O-MMT 3 phr, Irganox1010 0.3 phr, Irgafos168 0.3 phr, and metallic deactivator 0.1 phr.