汽车用增韧尼龙6的热氧老化研究  

STUDY ON THERMAL OXIDATIVE AGING OF TOUGHENING POLYAMIDE AND APPLIED TO AUTOMOBILE

作　　者：梁惠霞[1] 张东红[1] 张云霄[1] 苗振巍 苑会林[3] 

机构地区：[1]石家庄学院化工学院,石家庄050035 [2]宁波市正邦尼龙有限公司,宁波315400 [3]北京化工大学材料科学与工程学院,北京100029

出　　处：《工程塑料应用》2009年第9期71-74,共4页Engineering Plastics Application

摘　　要：分别研究了马来酸酐接枝(乙烯/辛烯)共聚物(POE)、铜盐抗氧剂和受阻酚类抗氧剂1010、1098及其与亚磷酸酯类抗氧剂626复配体系对增韧改性尼龙(PA)6材料抗热氧老化性能的影响,研究了不同抗氧剂体系和热老化时间对材料拉伸强度、简支梁缺口冲击强度的影响。结果表明,在增韧PA6材料中添加合适的抗氧剂可以满足材料在160℃条件下热氧老化24 h后力学性能保持率在90%以上的要求,该材料可以应用于汽车燃油管路系统。The effects of maleic anhydride grafted POE, copper oxidation inhibitor, hindered phenolic antioxidants 1010/ 1098 and compounded phosphate antilxidant 626 on the thermal oxidative aging properties of toughening polyamide 6 were studied separately, and the effects of oxidations and aging time on the mechanical properties of polyamide 6 were studied. Experiment resuhs provided that the proper oxidation with polyamide 6 could keep mechanical properties at the rate of 90% above in condition of temperature 160℃ and thermal oxidative for 24 h, and the material could meet requirements of fuel tubes system of automobile.

关 键 词：尼龙 热氧老化 增韧 抗氧剂 汽车 

分 类 号：TQ174.758[化学工程—陶瓷工业] TB332[化学工程—硅酸盐工业]