Poly(diallyldimethylammonium) and polyphosphate polyelectrolyte complex as flame retardant for char-forming epoxy resins

IF 1.9 4区工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY

Journal of Fire Sciences Pub Date : 2020-03-20 DOI:10.1177/0734904120911722

Lichen Zhang, Deqi Yi, Jian-wei Hao

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引用次数: 5

Abstract

The flame retardant poly(diallyldimethylammonium) and polyphosphate polyelectrolyte complex and the curing agent m-Phenylenediamine were blended into diglycidyl ether of bisphenol A (DGEBA)-type epoxy resin to prepare flame-retardant epoxy resin thermosets. The effects of poly(diallyldimethylammonium) and polyphosphate on fire retardancy and thermal degradation behavior of epoxy resins (EP)/poly(diallyldimethylammonium) and polyphosphate composites were tested by Limiting Oxygen Index, UL-94, cone calorimeter tests, and thermogravimetric analysis and compared with pure EP. The results showed that the Limiting Oxygen Index value of EP/poly(diallyldimethylammonium) and polyphosphate composite could reach 31.9%, and UL-94 V-0 rating at 10 wt% poly(diallyldimethylammonium) and polyphosphate loading. Meanwhile the cone calorimetry peak heat release rate and total heat release were reduced up to 55.2% and 21.8%, respectively; smoke production rate and total smoke production were also declined significantly, compared with those of pure epoxy resins. Poly(diallyldimethylammonium) and polyphosphate played a very good flame-retardant effect on epoxy resins.

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聚（二烯丙基二甲基铵）和聚磷酸盐聚电解质复合物用作成炭环氧树脂的阻燃剂

将阻燃剂聚二烯丙基二甲基铵和聚磷酸盐聚电解质配合物与固化剂间苯二胺共混到双酚A型环氧树脂二缩水甘油醚中，制备阻燃环氧树脂热固性树脂。通过极限氧指数、UL-94、锥形量热计和热重分析测试了聚二烯丙基二甲基铵和聚磷酸盐对环氧树脂（EP）/聚二烯丙基二甲基铵和多磷酸盐复合材料的阻燃性和热降解行为的影响，并与纯EP进行了比较。结果表明，EP/聚二烯丙基二甲基铵和聚磷酸盐复合材料的极限氧指数可达到31.9%，UL-94V-0等级为10 wt%的聚（二烯丙基二甲基铵）和多磷酸盐负载。同时锥形量热法的峰值放热率和总放热率分别降低了55.2%和21.8%；与纯环氧树脂相比，发烟率和总发烟量也显著下降。聚二烯丙基二甲基铵和聚磷酸盐对环氧树脂具有很好的阻燃效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Fire Sciences 工程技术-材料科学：综合

CiteScore

4.00

自引率

0.00%

发文量

审稿时长

2.5 months

期刊介绍： The Journal of Fire Sciences is a leading journal for the reporting of significant fundamental and applied research that brings understanding of fire chemistry and fire physics to fire safety. Its content is aimed toward the prevention and mitigation of the adverse effects of fires involving combustible materials, as well as development of new tools to better address fire safety needs. The Journal of Fire Sciences covers experimental or theoretical studies of fire initiation and growth, flame retardant chemistry, fire physics relative to material behavior, fire containment, fire threat to people and the environment and fire safety engineering. This journal is a member of the Committee on Publication Ethics (COPE).