摘要
研究了不同配比的ＰＣ／ＰＳ共混体系的物理和力学性能及其与相容性的关系，结果表明，ＰＳ含量越高，拉伸强度、冲击强度、密度和吸水率等越低，而表面硬度和耐溶剂开裂能力则提高。通过ＤＳＣ谱、ＳＥＭ等实验结果表明，少量的辐射接枝共聚物ＰＣ－ｇ－ＰＳ加入ＰＣ／ＰＳ共混体系，即能明显改善其相容性。加了共聚物以作为增容剂后，共混物的拉伸强度、冲击强度、密度、表面硬度和耐溶剂开裂能力均要比其相应的简单共混物的值来得高，而吸水率则有所下降。
The properties of PC/PS blends with different compositions were studied. The relations between the compatibility and the properties of the blends were investigated. The measurement of DSC and SEM showed that the compatibility of PC/PS blends was improved with the addition of the radiation graft copolymer PC g PS. Blend specimens were tested with respect to tensile, impact, density, hardness, water content, and time for crack in organic solvent to probe the effects of compatibility and composition on these factors. In general, the blends were rigid, brittle materials. With the addition of PC g PS, the tensile strength, impact strength, density, hardness, and time for crack in organic solvent were improved, while the water content was reduced.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1999年第2期50-54,共5页
Polymer Materials Science & Engineering
关键词
聚碳酸酯
聚苯乙烯
相容性
力学性
共混
polycarbonate, polystyrene, compatibility, mechanical properties,physical properties
