摘要
合成了甲基丙烯酸环氧丙酯(GMA)接枝的丙烯腈-丁二烯-苯乙烯(ABS-g-GMA)核壳粒子增韧聚对苯二甲酸丁二醇酯(PBT),加入环氧树脂(Epoxy)为扩链剂进一步提高共混物的性能。红外光谱(FTIR)结果表明:GMA成功接枝到ABS粒子上;研究发现不同GMA含量的ABS-g-GMA粒子在PBT及PBT/Epoxy共混物中均匀分散;ABS-g-GMA对PBT增韧效果较好,Epoxy进一步提高了PBT/ABS-g-GMA共混物的冲击韧性及拉伸强度;ABS-g-GMA增韧PBT的机理是橡胶粒子的空洞化和PBT基体的剪切屈服。
Glycidyl methacrylate （GMA） functionalized acrylonitrile-butadiene-styrene core-shell particles （ABS-g-GMA） were prepared and used to toughen poly（ butylene terephthalate） （PBT）. Epoxy resin （Epoxy） was used as chain extender to improve the properties of PBT blends. FTIR test showed GMA grafted onto ABS particles successfully. ABS-g-GMA particles with different GMA content dispersed in PBT and PBT/Epoxy uniformly. ABS-g-GMA toughened PBT well and Epoxy further improved the toughness and tensile strength of PBT/ABS-g-GMA blends. The mechanisms of ABS-g-GMA toughening PBT were cavitation of rubber particles and shear yielding of PBT matrix.
出处
《塑料》
CAS
CSCD
北大核心
2012年第1期13-15,33,共4页
Plastics
基金
国家自然科学基金(50803007)
