CAJ | 학술논문

通过DSC、SEM、Molau试验和力学性能测试, 研究了PA6／UHMWPE共混过程中HDPE-g-MAH对体系的增容作用、力学性能及结晶行为的影响。结果表明,共混体系为热力学不相容体系;在熔融共混过程中,PA6和HDPE-g-MAH发生化学反应,生成的接枝共聚物对PA6／UHMWPE体系有增容作用,分散性和界面形态以及力学性能明显改善;共混体系中两相的结晶行为亦发生变化,尼龙组分的熔融热焓明显下降。
통과DSC、SEM、Molau시험화역학성능측시, 연구료PA6／UHMWPE공혼과정중HDPE-g-MAH대체계적증용작용、역학성능급결정행위적영 향。결과표명,공혼체계위열역학불상용체계;재용융공혼과정중,PA6화HDPE-g-MAH발생화 학반응,생성적접지공취물대PA6／UHMWPE체계유증용작용,분산성화계면형태이급역학성능 명현개선;공혼체계중량상적결정행위역발생변화,니룡조분적용융열함명현하강。
The reactive compatibilization of PA6／UHM WPE／HDPE-g-MAH copolymer as well as effects of HDPE-g-MAH on mechanic prope rties and crystallizing behavior of PA6／UHMWPE blend were studied through DSC, SEM, Molau and mechanical property test. The experimental results show that the two components in blends were in compatible thermodynamically. The grafted copol ymer resulted from the reaction between PA6 and HDPE-g-MAH during melt blendin g act as compatibilizer, improving dispersion, interfacial morphology and mechan ical property of blends obviously. The crystallization behavior of two component s in PA6／UHMWPE blending system is also affected by the interactions between tw o phases. Compared with pure PA6, the ΔHf of PA6 components in PA6／UHMWP E blending system decreases obviously, while its Tc increases.