化工进展 ›› 2018, Vol. 37 ›› Issue (11): 4412-4418.doi: 10.16085/j.issn.1000-6613.2018-0339

• 材料科学与技术 • 上一篇    下一篇

改性赤泥协同膨胀型阻燃剂阻燃聚乙烯

宋剑峰1, 李曼1, 梁小良2, 粟海锋1   

  1. 1 广西大学化学化工学院, 广西 南宁 530004;
    2 广西华锑科技有限公司, 广西 南宁 530007
  • 收稿日期:2018-02-07 修回日期:2018-06-25 出版日期:2018-11-05 发布日期:2018-11-05
  • 通讯作者: 粟海锋,教授,博士生导师,研究方向为化工新材料和化工冶金等。E-mail:suhfeng@gxu.edu.cn。
  • 作者简介:宋剑峰(1992-),男,硕士研究生,研究方向为高分子材料阻燃。E-mail:782997837@qq.com。
  • 基金资助:
    广西科技计划重大专项(桂科AA16380041)。

Red mud modified synergistic intumescent flame retardation to retardant polyethylene

SONG Jianfeng1, LI Man1, LIANG Xiaoliang2, SU Haifeng1   

  1. 1 School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, China;
    2 Limited Company of Guangxi Huati Technology, Nanning 530007, Guangxi, China
  • Received:2018-02-07 Revised:2018-06-25 Online:2018-11-05 Published:2018-11-05

摘要: 以聚磷酸铵(APP)、季戊四醇(PER)和三聚氰胺(MEL)复配的膨胀型阻燃体系(IFR)为主要阻燃剂,表面改性后的赤泥(Ti-MRM)作为协效剂阻燃聚乙烯(PE),采用熔融共混法制备PE基阻燃复合材料(PE/IFR-Ti-MRM)。通过热重分析仪(TGA)、垂直燃烧仪(UL-94)、极限氧指数测定仪(LOI)及扫描电镜(SEM)等对其热氧稳定性、燃烧等级、阻燃性能和残炭形貌进行了表征与分析。结果表明:加入改性赤泥的PE/IFR-Ti-MRM复合材料形成的炭层更加致密和连续,当最优配比时,复合材料的极限氧指数达到32.2,燃烧等级达到V-0级;而PE/IFR阻燃复合材料的极限氧指数只能达到27.5,燃烧等级为V-2级。

关键词: 赤泥, 改性, 协效剂, 聚乙烯, 阻燃

Abstract: The flame-retardant composites based on polyethylene (PE), which uses intumescent flame retardant (IFR) composed of ammonium polyphosphate (APP), pentaerythritol (PER) and melamine, and using surface-modified red mud (Ti-MRM) as a synergist, were prepared by melt blending technique. The thermal oxygen stability, combustion performance, flame retardant and morphology of char residue were investigated by TGA, UL-94, LOI and SEM, respectively. It was indicated that the carbon layer of the post burning red mud modified PE/IFR-Ti-MRM composites was denser and more continuous. Under optimum proportion, the LOI and UL-94 of PE/IFR-Ti-MRM composites reached 32.2 and V-0 level, while those of PE/IFR composites were 27.5 and V-2 level, respectively.

Key words: red mud, modification, synergist, polyethylene, flame retardant

中图分类号: 

  • TQ322.3