马来酸酐接枝聚乙烯蜡的研制

考察了引发剂种类用量、马来酸酐加量、反应温度、反应时间、聚乙烯蜡分子结构等因素对马来酸酐接枝聚乙烯蜡的接枝率、接枝效率、气味、颜色、交联程度的影响。结果表明二叔丁基过氧化物是一种优良的接枝反应引发剂 ,在引发剂加量 0 .2 % ,马来酸酐加量 4 % ,反应温度 1 50～ 1 6 0℃ ,反应时间 3h的条件下 ,接枝率大于 1 .5% ,该接枝蜡可作为一种新型偶联剂应用在塑料填充料中

THE STUDY AND PREPARATION OFMALEIC ANHYDRIDE GRAFTED POLYETHYLENE WAX

The influences of the kinds and amount of initiators, the amount of maleic anhydride, the temperature and time of reaction, the molecular structure of polyetylene wax on the grafting ratio, the grafting effectiveness, the odour, the colour and the crossing -linkage of maleic anhydride grafted polyethylene wax were studied. It was showed that the di -tert -butyl peroxide was an excellent initiator for the grafted reaction. The grafting ratio could reach over 1. 5 % under the amount of the initiator of 0. 2%, the amount of the maleic anlyoride of 4%, the reaction temperature of 150～160 and reation time of 3 h. The grafted wax could be used as a novel coupling agent in the plastic filler.