【摘要】 ＭＢＳ是甲基丙烯酸甲酯（ＭＭＡ）、聚丁二烯（ＰＢ）、苯乙烯（Ｓｔ）的共聚物。作为ＰＶＣ的改性剂，在使ＰＶＣ增韧的同时，保持了树脂原有的光学性能。ＭＢＳ的化学组成，粒径尺寸和颗粒结构等因素，都对ＰＶＣ／ＭＢＳ合金的性能有着重要影响。本文以种子乳液聚合方法合成出化学组成２５／６０／４２，粒径约为０．３μｍ的核－壳结构型ＭＢＳ改性剂，与ＰＶＣ共混，测定ＰＶＣ／ＭＢＳ合金的综合性能，均得到较好的数据更多还原

【Abstract】 MBS is the methyl methacrylate (MMA) ,polybutadiene (PB) copolymer.The copolymer is used as the modifier of PVC,it not only toughen the PVC but also keep the original optical properties.The chemical composition of MBS,particle diameter,and particle structure determine the properties of PVC/MBS alloy.This paper used seed-emusification method to synthesize the cove-shell MBS modifier with the chemical composition 25/60/42,and particle diameter 0.3μm,The good data was obtained by measuring the properties of PVC/MBS alloys.更多还原