新型烷基次膦酸铝对PA6/LGF复合材料性能影响  

Effects of a Novel Aluminum Salt of Alkylphosphinic Acid on Properties of PA6/LGF Composite

作　　者：田敏[1] 何文涛[2] 于杰[1,2] 祝焕 魏晓松[1] 黄涛[1] 

机构地区：[1]贵州大学材料与冶金学院,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：《工程塑料应用》2015年第7期15-19,共5页Engineering Plastics Application

基　　金：国家科技支撑计划项目(2013BAC15B01);贵州省科技计划项目(黔科合GY字[2013]3033;黔科合GZ字[2014]3017);贵州省高层次创新型人才培养项目(黔科合人才[2015]4037号)

摘　　要：通过热重分析、极限氧指数及力学性能测试分析不同含量的二异丁基次膦酸铝(APBu)对PA6/LGF复合材料热性能、阻燃性能、力学性能的影响。结果表明,随着二异丁基次膦酸铝含量的增加,PA6/LGF/APBu复合材料的初始分解温度、最大分解温度均较PA6/LGF复合材料逐渐降低,而最大分解速率逐渐降低,复合材料成炭率略有增加。而且,PA6/LGF/APBu复合材料随着二异丁基次膦酸铝含量的增加其阻燃性能逐渐增强,但拉伸强度和弯曲强度呈逐渐降低趋势,而冲击性能保持超韧状态。Effects of various contents of aluminum salt of diisobutylphosphinic acid（APBu） on the properties of thermal stability,flame retardancy and mechanical properties of PA6/LGF composites were investigated by thermogravimetric analysis, limited oxygen index and mechanical property tests. The results indicate that the initial degradation temperature and the maximum decomposition temperature of the PA6/LGF/APBu composites reduce gradually with increasing the content of aluminum salt of diisobutylphosphinic acid,and their maximum decomposition rate also reduce gradually while the residues of the composites increase slightly. In addition,the flame retardancy of the PA6/LGF/APBu composites increase,but their tensile strength and bending strength decrease gradually,while their impact properties maintain super-tough state,with increasing the content of aluminum salt of diisobutylphosphinic acid.

关 键 词：二异丁基次膦酸铝 长玻纤增强尼龙6 热性能 阻燃性能 力学性能 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]