PA6/5A分子筛复合材料力学性能与结晶行为的研究  

Study on the Mechanical Properties and Crystal Behavior of PA6/5A Molecular Sieve Composites

作　　者：蔡盛梅[1] 杨其[1] 肖淼[1] 程小莲[1] 江耀贵[1] 

机构地区：[1]四川大学高分子科学与工程学院,四川成都610065

出　　处：《塑料工业》2010年第7期61-64,79,共5页China Plastics Industry

基　　金：国家重点实验室专项经费资助

摘　　要：制备了PA6/5A分子筛复合材料,并采用XRD、DSC、PM等对其进行表征。结果表明,5A分子筛的加入使拉伸强度、弹性模量始终保持上升趋势,其质量分数为15%时,复合材料拉伸强度从68.09MPa升至81.17MPa;质量分数为20%时,复合材料弹性模量从1186.04MPa升至1631.03MPa;而冲击强度随着填料用量的增加呈下降的趋势;5A分子筛起到了异相成核的作用,大大提高了结晶温度,促进了PA6的结晶,并且引发了新晶型的产生。PA6/5A molecular sieve composites were prepared and characterized using XRD,DSC,PM in this article.The results showed that the addition of 5A molecular sieve increased the tensile strength and elastic modulus which always maintain uptrend.When the content of 5A was 15 wt%,the tensile strength increased from 68.09 MPa to 81.17 MPa,when the content of 5A was 20 wt%,the elastic modulus increased from 1 186.04 MPa to 1 631.03 MPa,while the impact strength maintained downtrend with the increasing of the content of filler;5A molecular sieve played a role in heterogeneous nucleating,improved the crystal temperature remarkably and promoted the crystallization of PA6,and producted a new crystalline form.

关 键 词：分子筛 尼龙6 复合材料 结晶行为 力学性能 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]