中国塑料 ›› 2007, Vol. 21 ›› Issue (4): 44-47.

• 材料与性能 • 上一篇    下一篇

无卤阻燃玻璃纤维增强P66的冲击断裂行为研究

李丽萍,李斌*,汤飞
  

  1. 东北林业大学理学院,阻燃材料分子设计与制备黑龙江省重点实验室,黑龙江哈尔滨150040
  • 出版日期:2007-04-26 发布日期:2021-05-17

Impact Fracture Behavior of Non-halogen Flame Retarded Glass Fiber Reinforced PA66#br#

LI Li-ping,LI Bin*,TANG Fei   

  1. Flame Materials Preparation and Molecular Design Key Laboratory of Heilongiang Province, College of Science, Northeast Forestry University, Harbin 150010,China
  • Online:2007-04-26 Published:2021-05-17

摘要: 采用电子记忆式冲击试验机研究了玻璃纤维(GF)、镁离子改性聚磷酸蜜胺盐无卤阻燃剂(Mg-MPP)及改性剂马来酸酚接枝EPDM( EPDM-MA)对聚酞胺66(PA66)基复合材料冲击断裂行为的影响。结果表明:纯PA66及PA66/GF的断裂行为依赖于引发能,韧性指数分别为0.660和0.675,表现为脆性断裂;而添加Mg-MPP及EPDM-MA主要影响断裂的扩展阶段,韧性指数分别为0.833和0.883,说明阻燃剂及冲击改性剂的存在增加了材料的韧性。

关键词: 冲击断裂行为, 聚酚胺66, 玻璃纤维

Abstract: The effect of glass fiber (GF),flame retardant ( Mg-MPP ),and EPDM-MA on impact fracture behavior of PA66 was studied through impact testing. The individual stages of impact event, such as crack initiation and propagation, were analysized. PA66 and PA66/GF were mainly controlled by the crack initiation stage, the value of DI being 0 .660 and 0 .675 respectively, exhibiting a brittle fracture.Mg-MPP and EPDM-MA had pronounced effect on the crack propagation phase, the value of DI being 0 .833 and 0.883 respectively, indicating the increase of ductility.

Key words: impact fracture behavior, polyamide 66;glass fiber

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