中国塑料 ›› 2008, Vol. 22 ›› Issue (02): 28-32 .DOI: 10.19491/j.issn.1001-9278.2008.02.006

• 材料与性能 • 上一篇    下一篇

PE/Ca(OH)2/Mg(OH)2复合材料的阻燃性能初探

陈艺兰,林琅,肖荔人,刘欣萍,肖良建,陈庆华   

  1. 福建师范大学化学与材料学院,福建省改性塑料技术开发基地,福建福州350007
  • 收稿日期:2007-10-13 修回日期:1900-01-01 出版日期:2008-02-26 发布日期:2008-02-26

Flame Retardancy of PE/Ca(OH)2/Mg(OH)2 Composites

CHEN Yi-lan,LIN Lang,XIAO Li-ren,LIU Xin-ping,XIAO Liang-jian,CHEN Qing-hua   

  1. College of Chemistry and Materials Science, Fujian Normal University, The Institute of Fujian Modified Plastic Research and Developing Technology, Fuzhou 350007, China
  • Received:2007-10-13 Revised:1900-01-01 Online:2008-02-26 Published:2008-02-26
  • Contact: CHEN Qing-hua

摘要: 采用氧指数测试、水平燃烧性能测试、扫描电镜分析及热重分析等方法研究了不同配比Ca(OH)2/Mg(OH)2的加人对聚乙烯(PE)复合材料[PE用量为CJ%(质量分数,下同),Mg(OH2)和Ca(OH)2总用量为35%]的氧指数、水平燃烧级别和燃烧后炭层表面形貌等燃烧性能的影响。结果表明,PE复合材料氧指数达到24. 5%,且其最快分解温度(Tmax)比纯PE滞后9.2℃,并促进致密炭层的形成。Ca(OH)2与Mg(OH):2并用对PE阻燃性能有一定的协同增效作用,有望实现用廉价的Ca(OH)2对Mg(OH)2的替代。

关键词: 氢氧化钙, 氢氧化镁, 聚乙烯, 阻燃性能, 协同增效

Abstract: the flame retardant properties of PE based composite with Ca(OH)2 and Mg(OH)2 were characterized with oxygen index analyzer, vertical horizontal analyzer, SEM, and TG. When the totalcontent of Ca(OH)2 and Mg(OH)2 was 35 wt%,the LOI of the composite reached 24.5%,and the Tmax lagged neat PE by 9.2℃ .The formation of dense char layer was promoted.Ca(OH)2 and Mg(OH)2 had some synergistic effects to the flame retardant properties of PE. It could be expected to replace some of Mg(OH)2 with low cost Ca(OH)2.

Key words: calcium hydroxide, magnesium hydroxide, polyethylene, flame retardancy, synergistic effect