PBT树脂对核壳粒子增韧聚碳酸酯结构与性能的影响  

Effect of PBT Resin on the Structure and Properties of Core-Shell Particles Toughened PC

作　　者：王星月[1] 孙树林[1,2] 邹德音 赵中谣 马俊杰 

机构地区：[1]长春工业大学合成树脂与特种纤维教育部工程研究中心,吉林长春130012 [2]哈尔滨鑫达高分子材料有限责任公司,黑龙江哈尔滨150066

出　　处：《高分子材料科学与工程》2012年第9期40-43,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(50803007);吉林省科技发展计划项目(20090142)

摘　　要：合成了甲基丙烯酸甲酯-丁二烯-苯乙烯-甲基丙烯酸环氧丙酯(MBS-g-GMA)核壳粒子用于聚碳酸酯(PC)的增韧,并在PC/MBS-g-GMA共混物中引入聚对苯二甲酸丁二醇酯(PBT)以提高性能。PBT的加入使MBS-g-GMA在PC中分散更均匀;共混物缺口冲击强度进一步提高,PBT质量分数为20%时,冲击强度接近700J/m;PBT提高了PC/MBS-g-GMA共混物的熔体流动速率,使加工性能得到改善。断裂形态表明,PBT加入后共混物应力发白区尺寸增加,剪切屈服更明显,共混物韧性提高。Methyl methacrylate-butadiene-styrene-glycidyl methacrylate（MBS-g-GMA） core-shell particles were prepared to toughen polycarbonate（PC）.The addition of poly（butylene terephthalate）（PBT） into the blends improves the dispersion of PC/MBS-g-GMA and MBS-g-GMA in PC matrix.The notched impact strength of the blends is improved,and when the mass fraction of PBT is 20%,impact strength of 700J/m can be achieved.The melt flow rate of PC/MBS-g-GMA blends increases with the introduction of PBT and the processability is improved.The fracture morphology shows the size of stress-whitening zone increases due to the addition of PBT and the shear yielding becomes much obvious and the toughness of the blends is improved.

关 键 词：聚碳酸酯 聚对苯二甲酸丁二醇酯 核壳粒子 结构 性能 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]