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通过力学性能和 DSC测试以及 SEM观测 ,分析了丙烯腈 -b-苯乙烯共聚物 (SAN) /甲基丙烯酸甲酯 -丁二烯 -苯乙烯核 -壳聚合物 (MBS)、SAN/丙烯腈 -丁二烯 -苯乙烯三元共聚物 (ABS)、SAN/ MBS/ ABS及 SAN/ MBS/苯乙烯 -丁二烯 -苯乙烯三元共聚物 (SBS)共混体系的力学性能与微观结构之间的关系。研究结果表明 ,MBS对 SAN基体具有明显的增韧效果 :当添加 ABS或 SBS弹性体时呈现出明显的协同增韧效应。SAN/ MBS/ ABS共混体系冲击断面的 SEM照片显示 ,当材料受冲击时产生了大量的空洞 ,从而吸收了大量的冲击能量。
The properties of acrylonitrile-b-styrene copolymer (SAN) / methyl methacrylate-butadiene-styrene core-shell polymer (MBS), SAN / acrylonitrile - Mechanical Properties and Microstructure of Butadiene-Styrene Terpolymer (ABS), SAN / MBS / ABS and SAN / MBS / Styrene-Butadiene-Styrene Terpolymer (SBS) The relationship between. The results show that MBS has obvious toughening effect on the SAN matrix: when added ABS or SBS elastomer showed significant synergistic toughening effect. The SEM images of the impact cross section of the SAN / MBS / ABS blends show that when the material is impacted, a large number of voids are created, thereby absorbing a large amount of impact energy.