通过熔融共混法制备了聚甲基丙烯酸甲酯/聚(苯乙烯-丙烯腈)/甲基丙烯酸甲酯-丁二烯-苯乙烯聚合物(PMMA/SAN/MBS)共混物.对共混物进行了力学性能测试,结果表明,MBS的加入显著提高了共混物的冲击韧性,PMMA与SAN的配比对其冲击韧性影响不大；采用光电雾度仪和透射电镜(TEM)对共混物的光学性能和结构进行了表征,结果表明,PMMA/SAN/MBS共混物的透光率随MBS含量的增加而降低；PMMA/SAN的质量比为50/50时,MBS含量对共混物透光率的影响最小；TEM结果表明,MBS在基体中分散均匀；用光学显微镜等手段对共混物耐刮擦行为进行了研究,结果表明,MBS的加入在一定程度上降低了共混物的耐刮擦性能.
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