摘要
采用熔融挤出法制备了ＰＡ６／ＰＯＥ和ＰＡ６／ＰＯＥｇＭＡＨ共混合金，借助于力学试验机、ＴＥＭ、ＳＥＭ、Ｍｏｌａｕ实验和毛细管流变仪测定了共混合金的力学性能、亚微相态、冲击断口形貌和流变性能，系统地研究了ＰＯＥｇＭＡＨ对ＰＡ６的增容增韧作用。结果表明，ＰＯＥ与ＰＡ６是不相容体系，经ＭＡＨ接枝改性后的ＰＯＥ与ＰＡ６发生化学反应，生成的ＰＯＥｇＰＡ６共聚物起到了原位增容作用，细化了分散相尺寸，有效地改善了合金的力学性能，ＰＡ６／ＰＯＥｇＭＡＨ共混合金的缺口冲击强度是ＰＡ６的１２倍。
The blends of PA6 with POE or POE g MAH were prepared by twin screw extruder. Their mechanical properties, morphology and rheological properties were investigated by means of mechanical tester, TEM, SEM and capillary rheometer. The results show that POE and PA6 is an uncompatible system, but the POE g MAH has an obvious in situ compatibilizing and toughening effect on PA6. The POE g PA6 formed through the reaction between the POE g MAH and PA6 during the melt extrusion process fines the size of dispersed phase and improves the impact and tensile strength of blends. The Izod notched impact strength of PA6/POE g MAH blend is about twelve times higher than that of PA6.
出处
《北京化工大学学报（自然科学版）》
CAS
CSCD
1999年第1期11-15,共5页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
基金
国家863计划项目
