CaCl2/E51/尼龙6复合材料的制备与性能  

Preparation and properties of CaCl_2 modified E51/polyamide 6 composities

作　　者：胡孝迎 郑强[1,2] 于杰[1,2] 王君[1,2] 何敏[1,2] 鲁圣军[1,2] HU Xiaoying ZHENG Qiang YU Jie WANG Jun HE Min LU Shengjun(Department of Polymer Material and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014, China)

机构地区：[1]贵州大学材料科学与冶金工程学院,高分子材料与工程系,贵阳550025 [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：《复合材料学报》2016年第9期1939-1946,共8页Acta Materiae Compositae Sinica

基　　金：贵州省教育厅自然科学研究项目(黔教合KY字[2013]158);贵州省教育厅研究生卓越人才计划(黔教研ZYRC字[2013]006号)

摘　　要：通过熔融共混法制备了不同CaCl2质量分数的CaCl2/环氧树脂(E51)/尼龙6(PA6)复合材料,利用DSC、流变仪、FTIR和电子拉伸机等研究了不同CaCl2质量分数下CaCl2/E51/PA6复合材料结晶行为及其力学性能,并研究了其受限机制。力学性能结果表明,随着CaCl2质量分数的增加,CaCl2/E51/PA6复合材料拉伸强度呈现出先增大后减小的趋势,当CaCl2质量分数为3%时,复合材料拉伸强度达到最大值82.67 MPa,是纯PA6的拉伸强度(60.5 MPa)的1.366倍,而结晶行为结果表明,增加CaCl2的质量分数,CaCl2/E51/PA6复合材料的成核温度、晶体生长温度、熔融温度及玻璃化转变温度均向低温方向移动,成核密度和成核速率也逐渐减小,结晶能力下降,结晶度由原来25.22%变为9.90%。The CaCl2/epoxy resin（E51）/polyamide 6（PA6）composites with different mass fractions of CaCl2 were prepared by melting co-extrusion.The crystallization behavior and mechanical properties of CaCl2/E51/PA6 composites were studied by DSC,rheometer,FTIR and electronic tensile testing machine et al.The confined mechanism was also investigated.The mechanical property results show that with increases of mass fraction of CaCl2,the tensile strength of CaCl2/E51/PA6 composites increases firstly and decrease finally.When mass fraction of CaCl2is3%,the tensile strength of composites reaches maximum 82.67 MPa,which is 1.366 times of the tensile strength of pure PA6（60.5MPa）.The crystallization behavior results show that increase of mass fraction of CaCl2 decrease the temperature of nucleation,the growth temperature of crystal,the melt temperature and glass transition temperature of CaCl2/E51PA6 composites.The density of nucleation and the rate of nucleation also decrease gradually,the crystallization decreases and the degree of crystallinity changes from original 25.22%to 9.90%.

关 键 词：结晶行为 力学性能 机制 成核密度 结晶能力 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]