CaCl_2对PA6/OMMT/POE-g-MAH复合材料结构与性能的影响  

Effect of Calcium Chloride on Stucture and Properties of PA6 / OMMT / POE-g-MAH Compounds

作　　者：胡孝迎 王君[1,2] 于杰[1,2] 鲁圣军[1,2] 王彩红[1,2] 

机构地区：[1]贵州大学材料与冶金学院高分子材料与工程系,贵州贵阳550025 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014

出　　处：《塑料》2015年第6期19-22,28,共5页Plastics

基　　金：贵州省优秀青年科技人才培养对象专项资金(黔科合人字(2013)33号)

摘　　要：通过挤出机熔融共混法制备了PA6/POE-g-MAH/OMMT/CaCl_2复合材料,研究了CaCl_2含量对PA6/POE-gMAH/OMMT/CaCl_2复合材料结晶行为及其力学性能的影响。结果表明:随着CaCl_2含量的增加,PA6/POE-g-MAH/OMMT/CaCl_2复合材料的弯曲强度呈现出逐渐增大的趋势。当CaCl_2为9%时,复合材料的弯曲强度达到最大值76.6 MPa。另外,随CaCl_2含量的增加,复合材料拉伸强度和冲击强度都呈现出先增大后减小的趋势。当CaCl_2为5%时,复合材料的拉伸强度(70.8 MPa)和冲击强度(11.8 k J/m2)分别达到最大值,与纯PA6相比拉伸强度(65.5 MPa)和冲击强度(5.5 k J/m2)分别提高了8%和114%。结晶性能研究表明:随着CaCl_2含量的增加,复合材料的成核温度、增长温度及熔融温度向低温方向移动。PA6/POE-g-MAH/OMMT/CaCl2 composite were prepared through a step melting extrusion process, the effects of the CaC12 contents on the crystallization behavior and the mechanical properties of composite were studied. The results indicated that the bending strength of composite materials showed a tendency to increase with the content of CaCl2 , when mass fraction of CaCl2 reached 9% , bending strength of the composite materials reached maximum value 76.6 MPa. Besides the tensile strength and impact strength first increased and then decreased, when the CaC12 content was 5% , the tensile strength and impact strength reached a maximum value. Compared with pure PA6 tensile strength （65.5 MPa） and impact strength （5.5 kJ/m^2） ,the tensile strength and impact strength of the composite were improved by 8.1% and 114% respectively. From the reasearch of crystallization properites of composite,the results showed that the nucleation temperature, growth temperature and melt temperature of spherulites moved to the direction of low temperature with the addition of CaCl2.

关 键 词：尼龙6 氯化钙 复合材料 拉伸强度 成核温度 熔融温度 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]