橡胶接枝苯乙烯-马来酸酐本体共聚——橡胶粒径及抗冲性能的研究  

Grafting Bulk Copolymerization of Styrene and Maleic Anhydride onto Rubber——Study on The Rubber Particle Diameter and Impact Performance for SMA

作　　者：夏燕敏[1] 王荣伟[1] 石正金[1] 周文乐[1] 

机构地区：[1]中石化股份公司上海石油化工研究院,上海201208

出　　处：《化学反应工程与工艺》2006年第1期63-68,共6页Chemical Reaction Engineering and Technology

摘　　要：采用半连续的本体聚合工艺，考察了转相用搅拌转速、反应温度、引发剂用量等聚合工艺条件对橡胶接枝苯乙烯-马来酸酐共聚产物（SMA）中橡胶粒径和性能的影响。实验结果表明，搅拌转速对橡胶粒径的影响比较单一，转速越大，粒径越小；而后两者的影响因素则比较复杂，同时影响两相牯度、剪切强度、基体分子量和接枝效果等，彼此之间相互牵制。通过调整以上工艺参数，可形成2～5mm大小合话的梭腔粘径，得到抗冲性能较好的SMA。By semi - continuous bulk copolymerization, the effects of reaction conditions, such as phase inversion agitation rate, reaction temperature and initiator concentration etc, were investigated on the rubber particle size and the performance of the copolymer of styrene and maleic anhydride （SMA）. The experimental results showed that the effect of agitation rate on rubber particle size was pronounced, i.e. the higher the agitation rate is, the smaller the particle size. But the effects of reaction temperature and initiator concentration were a bit complicated. In addition, the effects of viscosity, shearing strength, molecular weight of matrix resin, grafting efficiency etc. were also involved. By adjusting the conditions as mentioned above, the rubber particle size reached a proper range of 2-5μm as well as the impact SMA with high performance was obtained.

关 键 词：苯乙烯-马来酸酐共聚物 本体共聚 橡胶 接枝 抗冲性能 

分 类 号：TQ316.331[化学工程—高聚物工业]