ABS接枝共聚物对CPVC树脂的增韧  

Toughening of CPVC Resin with Acrylonitrile-Butadiene-Styrene Grafting Copolymers

作　　者：周婷婷[1] 任亮[1] 李明远[1] 张明耀[1] 张会轩[1] 

机构地区：[1]长春工业大学化学工程学院,吉林长春130012

出　　处：《高分子材料科学与工程》2012年第11期59-62,共4页Polymer Materials Science & Engineering

摘　　要：通过调整共聚单体的组成(St/AN)及聚丁二烯与共聚单体的投料比,合成了一系列具有不同接枝共聚组成和核壳比的ABS接枝共聚物。将其与氯化聚氯乙烯CPVC树脂熔融共混,研究了CPVC/ABS共混物的性能和形态结构。结果表明,SAN共聚物和CPVC树脂为不相容体系,但当SAN共聚物中AN含量为20%～25%时,两者之间表现出较强的相互作用。CPVC/ABS共混物的力学性能和形态结构显著地依赖于接枝SAN共聚物的AN含量和ABS接枝共聚物的核壳比,当AN含量为20%～25%、核壳比为40/60时,ABS橡胶粒子能够均匀地分散在CPVC基体树脂中,共混物表现出良好的冲击韧性。Acrylonitrile-butadiene-styrene grafting copolymers （ABS） with different St/AN compositious and core/shell ratios were synthesized. Chlorinated polyvinyl chloride（CPVC）/ABS blends were prepared by bleuding of ABS graft copolymer and CPVC resin. The property and morphology of CPVC/ABS blends were studied. The results show that SAN copolymer is immiscible with CPVC resin, but the SAN copolymer and CPVC show a strong interaction wbon the AN content of SAN copolymer is between 20% -25%. The mechanical properly and morphology of ABS/CPVC blends are obviously influenced by the AN content of SAN copolymer and the core/shell ratios of ABS graft copolymer. When the AN content of SAN is 20% -25% and the core/shell ratio is 40/60, polybutene （PB） rubber particles could be dispersed uniformly in the CPVC matrix, and the ABS/CPVC blend has the excellent impact toughness.

关 键 词：氯化聚氯乙烯树脂 ABS接枝共聚物 共混物 性能 形态结构 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]