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OMMT -卤-锑阻燃体系对 PA6/LGF 复合材料的影响
引用本文:单辰杰,左晓玲,江来,郝智,郭建兵.OMMT -卤-锑阻燃体系对 PA6/LGF 复合材料的影响[J].广州化工,2014(20):61-65.
作者姓名:单辰杰  左晓玲  江来  郝智  郭建兵
作者单位:贵州大学材料与冶金学院,贵州 贵阳,550025
基金项目:贵州大学省创字(2013)004。
摘    要:利用有机蒙脱土( OMMT)协同溴代环氧树脂( BER)、三氧化二锑( Sb2 O3)通过熔融插层法制备OMMT-卤-锑阻燃长玻纤增强尼龙6复合材料(OMMT/FR/PA6/LGF),通过极限氧指数(LOI)、垂直燃烧(UL-94)、锥形量热分析(CONE)、热失重分析( TGA)、扫描电镜( SEM)等方法研究了不同质量比的OMMT-卤-锑阻燃体系对OMMT/FR/PA6/LGF复合材料成炭、阻燃、燃烧、力学性能以及热稳定性的影响。结果表明,当OMMT添加量为2%, BER/Sb2 O3添加量为10%时,二者表现出优异的协同阻燃效应,不仅能促使OMMT/FR/PA6/LGF复合材料生成的炭层结构最为致密、均匀、连续,氧指数值最高且能保持FV-0级,还对复合材料的力学性能影响相对最小。

关 键 词:长玻纤增强尼龙6  有机蒙脱土  卤-锑阻燃体系  烛芯效应  阻燃机理

Effects of OMMT-halogen-antimony Flame Retardant on the PA6/LGF Composites
SHAN Chen-jie , ZUO Xiao-ling , JIANG Lai , HAO Zhi , GUO Jian-bing.Effects of OMMT-halogen-antimony Flame Retardant on the PA6/LGF Composites[J].GuangZhou Chemical Industry and Technology,2014(20):61-65.
Authors:SHAN Chen-jie  ZUO Xiao-ling  JIANG Lai  HAO Zhi  GUO Jian-bing
Affiliation:( College of Materials Science and Metallurgy Engineering, Guizhou University, Guizhou Guiyang 550025, China)
Abstract:Long-glass -fiber reinforced polyamide 6 composites were flame -retarded with OMMT -halogen -antimony flame retardant containing organic montmorillonite (OMMT) synchronized with brominated epoxy resins (BER) and antimony trioxide ( Sb2 O3 ) were prepared via melting processing.The effects of different mass ratio of OMMT -halogen -antimony on char formation , flame retardant , combustion , mechanical properties of OMMT/FR/PA6/LGF composites were studied by limited oxygen index measurements (LOI), vertical burning test (UL-94), cone calorimeter test (CONE), thermogravimetric analysis (TGA) and scanning electronic microscopy (SEM).The results demonstrated that both OMMT and BER/Sb2 O3 exhibited excellent effect of synchronized flame retardant , for the samples containing 2wt%OMMT synchronized with 10wt%BER/Sb2 O3 , which not only promoted OMMT/FR/PA6/LGF composites to form a more compacted, homogeneous and continuous chars layer structure and owned the highest LOI value and FV -0 rating, but also had the least effect on composites'mechanical property relatively.
Keywords:long glass fiber reinforced PA 6  organic montmorillonite  halogen-antimony flame-retardant system  wick effect  flame-retardant mechanism
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