主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (11): 1654-1657.

• • 上一篇    下一篇

改性LDH与IFR对聚苯乙烯的协效阻燃研究

赵建宇，段嘉豪，杨 玲   

  1. (首都经济贸易大学 管理工程学院，北京 100071)
  • 出版日期:2021-11-15 发布日期:2021-11-15
  • 通讯作者: 杨 玲，首都经济贸易大学管理工程学院副教授。
  • 作者简介:赵建宇（1998-），男，山西大同人，首都经济贸易大学管理工程学院硕士研究生，主要从事材料火灾危险性研究，北京市丰台区花乡张家口121号,100071。

Research on synergistic flame retardant effect of modified LDH and IFR on polystyrene

ZHAO Jian-yu，DUAN Jia-hao，YANG Ling   

  1. School of Management and Engineering, Capital University of Economics and Business, Beijing 100071，China
  • Online:2021-11-15 Published:2021-11-15

摘要： 制备由聚磷酸铵（APP）、季戊四醇（PER）和十二烷基单磷酸钾改性的锌铝双氢氧化物（ZnAl-LDH-PK）组成的复合阻燃剂与膨胀阻燃剂IFR协效阻燃聚苯乙烯（PS），研究了二者不同配比下对聚苯乙烯的阻燃性能、燃烧性能。结果表明，适当比例的ZnAl-LDH-PK和IFR协同作用于复合材料，可使材料具有更优异的热稳定性和成炭能力；当组分为PS、22%IFR、3%ZnAl-LDH-PK时，氧指数（LOI）达35，总热释放和生烟总量较纯PS分别降低了28%和38%，提高了耐火性能；SEM结果证实ZnAl-LDH-PK与IFR的协效作用使复合材料形成了高度膨胀和连续致密的炭层。

关键词: PS, 层状双氢氧化物, 膨胀阻燃剂, 协同作用

Abstract: A composite flame retardant composed of ammonium polyphosphate (APP), pentaerythritol (PER) and potassium dodecyl monophosphate modified zinc aluminum double hydroxide (ZnAl-LDH-PK) was prepared with the intumescent flame retardant IFR synergistic flame retardant polystyrene (PS), and the flame retardant properties and combustion performance of polystyrene under different ratios of the two were studied. The results showed that the appropriate ratio of ZnAl-LDH-PK and IFR synergistically acted on the composite material, can promote the material with better thermal stability and carbon formation ability; when the component was PS, 22% IFR, 3% ZnAl-LDH-PK, its Gmited oxygen index LOI reached 35, and the total heat release and total smoke generation were reduced by 28% and 38%, respectively, compared with pure PS, improving the fire resistance. The SEM results confirmed that ZnAl-LDH-PK and IFR synergistically formed a highly expanded and continuous dense carbon layer in the composite.

Key words: polystyrene, layered double hydroxide, intumescent flame retardant, synergistic effect