POE-g-MAH对低熔点PA6结构与性能的影响  

Effect of POE-g-MAH on Structure and Properties of Low Melting Point PA6

作　　者：刘典新[1,2] 何敏[1,2] 甘华华[1,2] 张敏[1,2] 鲁圣军[1,2] 

机构地区：[1]贵州大学材料与冶金学院,贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵阳550014

出　　处：《工程塑料应用》2013年第11期31-34,共4页Engineering Plastics Application

基　　金：贵州省自然科学基金项目(黔科合J字【2012】2123号);贵阳市工业振兴科技计划项目([2012101]2-11)

摘　　要：采用一步熔融挤出工艺制备了尼龙(PA)6/CaCl2/马来酸酐接枝聚烯烃弹性体(POE-g-MAH)复合材料,研究了不同POE-g-MAH含量对PA6/CaCl2/POE-g-MAH复合材料的结晶熔融行为及力学性能的影响。结果表明,随着POE-g-MAH含量的增加,PA6/CaCl2/POE-g-MAH复合材料的冲击强度显著提高,拉伸强度下降,当POE-gMAH的质量分数为25%时,PA6/CaCl2/POE-g-MAH复合材料的冲击强度达到75.2 kJ/m2,比PA6/CaCl2(7.4 kJ/m2)提高了10.2倍,且随POE-g-MAH含量的增加,复合材料的熔融温度先升高后降低。POE-g-MAH的加入降低了复合材料的结晶完善程度。The effects of the POE-g-MAH contents on the crystallization behavior and the mechanical properties of PA6 / CaCl2/POE-g-MAH composites which were prepared through a step melting extrusion process were researched. The results show that as the POE-g-MAH content increasing, the impact strength of PA6 / CaCl2 / POE-g-MAH composites increases significantly, but tensile strength decreases. When the mass fraction of POE-g-MAH reaches 25%, the impact strength of the composite reaches 75.2 kJ / m2, which increases 10.2 times than that of PA6 / CaCl2 （7.4 kJ / m2）. With the increase of the POE-g-MAH content, the melting temperature of PA6/CaCl2 /POE-g-MAH composites increase firstly and decreases lastly. Besides, the crystallization complete degree decreased by POE-g-MAH.

关 键 词：尼龙6 POE—g—MAH 氯化钙 性能 结晶行为 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]