中文摘要：

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%。

英文摘要：

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%.