核壳粒子对PBT增韧改性研究  

Toughening of poly(butylene terephthalate) by addition of core-shell particles

作　　者：赵晨阳[1] 李绍英[1] 王成忠[2] 

机构地区：[1]河北科技大学材料科学与工程学院,河北石家庄050018 [2]北京化工大学材料科学与工程学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2011年第5期86-89,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：河北省应用基础研究计划重点基础研究(09965121D)

摘　　要：采用甲基丙烯酸甲酯(MMA)和丙烯酸丁酯(BA)合成了软核硬壳的核壳粒子,再用该核壳粒子改性聚对苯二甲酸二丁酯(PBT)。研究了核壳粒子合成工艺及添加量对PBT力学性能的影响,并研究了核壳粒子与马来酸酐接枝POE共同改性PBT的力学性能。结果表明,单体MMA和BA质量比为2/3时核壳粒子对PBT有较好的增强增韧效果;引发剂增加有利于减小核壳粒子粒径,有利于提高PBT的强度;核壳粒子与POE-g-MAH有共增韧效果,在基本不影响PBT强度下显著提高冲击性能。Core-shell polymer particles have been synthesized from methyl methacrylate （MMA） and butyl acrylate （BA）. The mechanical properties of poly（butylene terephthalate） （PBT） were studied after addition of the coreshell particles and maleic anhydride-grafted polyethylene-octane （POE） copolymer as impact modifiers. The results showed that the PBT had the maximum toughness when the monomer ratio of MMA：BA in the core-shell polymer was 2： 3. The particle size of the core-shell particles decreased as the amount of initiator increased, and as a result the tensile strength of PBT increased. Synergistic effects on the mechanical properties of PBT were observed by

关 键 词：核壳粒子 PBT 增韧 

分 类 号：TB324[一般工业技术—材料科学与工程]