透明尼龙PA6T/6I在GF增强PA66体系中的应用  

Application of Transparent Nylon PA6T/6I in GF Reinforced PA66

作　　者：杨军辉[1] 易勇[1] 曹凯凯[1] 张英伟 YANG Jun-hui;YI Yong;CAO Kai-kai;ZHANG Ying-wei(Zhuzhou Time New Material Technology Co.,Ltd.,Zhuzhou 412007,China;School of Packaging and Material Engineering,Hunan University of Techenology,Zhuzhou 412007,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007 [2]湖南工业大学包装与材料工程学院,湖南株洲412007

出　　处：《塑料工业》2020年第5期40-43,共4页China Plastics Industry

基　　金：“十三五”国家重点研发项目(2017YFB0307600)。

摘　　要：采用尼龙66 (PA66)和透明尼龙PA6T/6I为基体树脂,用熔融共混改性的技术方法制备PA66/PA6T/6I/GF复合材料,考察了透明尼龙PA6T/6I含量对复合材料的熔融结晶行为、热变形温度(HDT)、力学性能、表面性能的影响。结果表明,当玻璃纤维含量为30%的情况下,在透明尼龙树脂PA6T/6I用量不高于基体树脂含量的20%时,改性复合材料熔融结晶行为与PA66类似,复合材料制品表面的浮纤问题得到解决,比未添加透明尼龙PA6T/6I的复合材料相等的拉伸强度和弯曲强度分别提高27%和40%,简支梁和悬臂梁缺口冲击强度则分别提高了26%和40%,吸水率提高了30%,具有优异的综合性能和尺寸稳定性。Nylon 66( PA66) and transparent nylon PA6 T/6 I w ere used as the matrix resin,and PA66/PA6 T/6 I/glass fiber reinforced( GF) composites w ere prepared by melt blending technology. The melt crystallization behavior,heat deformation temperature( HDT),mechanical properties and surface properties of the composites were examined. The results show when the glass fiber content is30%and the amount of transparent nylon resin is not higher than 20%of the matrix resin content,the melt crystallization behavior of the modified composite is similar to that of PA66. The emergence of the surface morphology of composite products is solved,and the tensile strength and bending strength are improved 27% and 40% than those of the composite materials w ithout transparent nylon,respectively.The charpy impact strength and izod impact strength could increase 26%and 40%,respectively. The w ater absorption has increased 30%,w hich show s excellent overall performance and dimensional stability.

关 键 词：透明尼龙 尼龙66 吸水率 玻璃纤维增强复合材料 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]