中国塑料 ›› 2009, Vol. 23 ›› Issue (05): 86-90 .DOI: 10.19491/j.issn.1001-9278.2009.05.016

• 助剂 • 上一篇    下一篇

金属化合物在HDPE膨胀阻燃体系中的协同作用研究

杨凯 卢忠远 刘辉 韦忠宇 宋丽贤   

  1. 西南科技大学材料科学与工程学院
  • 收稿日期:2009-01-09 修回日期:1900-01-01 出版日期:2009-05-26 发布日期:2009-05-26

The Study of Synergism Between Metallic Compounds and IFR System

  

  • Received:2009-01-09 Revised:1900-01-01 Online:2009-05-26 Published:2009-05-26

摘要: 研究了几种金属化合物对HDPE膨胀阻燃体系(IFR)的协同作用,通过极限氧指数(LOI)、DSC—TG、SEM对复合材料的阻燃、热稳定性和成炭情况进行研究,分析了金属化合物与膨胀阻燃剂协效作用机理。LOI测试显示:当ZEO、ZnO、Al2O3添加量分别为3%(质量百分比,下同)、1%、3%时,极限氧指数达到29.6%、29.0%、29.4%,比单独添加IFR分别高出4.6、4.0和4.4个百分点;DSC-TG和SEM结果表明:ZEO、ZnO、Al2O3主要通过促进PE-HD/IFR体系凝聚相快速成炭,稳定炭层强度来发挥其协效作用,而对最终成炭量贡献不大。

关键词: 高密度聚乙烯, 金属化合物, 膨胀型阻燃剂, 协效作用, 机理

Abstract: This paper studied the synergism effect between IFR and metallic compounds.The flame retardancy, thermal stability and the char layer were analyzed by LOI, DSC-TG and SEM.The synergism effect mechanism of metallic compounds was discussed.The LOI results show that, when the composition contained 3%ZEO, 1% ZnO and 3% Al2O3, LOI of 29.6, 29.0 and 29.4 were achieved. It was higher 4.6, 4.0 and 4.4 than IFR separately.The DSC-TG and SEM results indicate that ZEO, ZnO and Al2O3 can help the PE-HD/IFR to accelerate the formation of charring layer and strengthen it.But there is little contribution to the quality of the charring layer.

Key words: HDPE, metallic compounds, intumescent flame retardant, synergism effect, mechanism

中图分类号: