一种新型含磷自交联阻燃剂的制备及对固态环氧树脂热稳定性和燃烧性能的影响

doi:10.19936/j.cnki.2096-8000.20230628.009

复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (6): 59-66.DOI: 10.19936/j.cnki.2096-8000.20230628.009

一种新型含磷自交联阻燃剂的制备及对固态环氧树脂热稳定性和燃烧性能的影响

王恒旭¹, 徐锦佳¹, 林芷芊¹, 徐翰林¹, 楼高波¹, 戴进峰^1,2*, 傅深渊^1,2

1.浙江农林大学化学与材料工程学院,杭州 311300;
2.浙江农林大学国家木质资源综合利用工程技术研究中心,杭州 311300

收稿日期:2022-05-26 出版日期:2023-06-28 发布日期:2023-08-22
通讯作者: 戴进峰(1984—),男,博士,讲师,主要从事复合材料的表界面改性、高分子材料绿色阻燃和生物质材料高性能化等方面的研究,jinfengdai0601@zafu.edu.cn。
作者简介:王恒旭(1993—),男,硕士研究生,主要从事复合材料改性方面的研究。
基金资助:
国家自然基金青年项目(51903222);浙江农林大学人才引进启动基金资助项目(2017FR017);2021年浙江省大学生科技创新活动计划(2021R412012);浙江农林大学大学生科研训练项目(2021KX0035)

Synthesis of a novel self-crosslinking flame retardant with phosphorus-containing and its thermal stability and combustion performance of solid epoxy resin

WANG Hengxu¹, XU Jinjia¹, LIN Zhiqian¹, XU Hanlin¹, LOU Gaobo¹, DAI Jinfeng^1,2*, FU Shenyuan^1,2

1. College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China;
2. The National Engineering Research Center for the Comprehensive Utilization of Wood Resources, Zhejiang A&F University, Hangzhou 311300, China

Received:2022-05-26 Online:2023-06-28 Published:2023-08-22

摘要/Abstract

摘要： 通过取代反应合成一种新型含磷自交联阻燃剂(DPPN),以¹H-NMR和³¹P-NMR确认其结构,以DSC和TGA评价了其自交联行为和热稳定性,结果表明,DPPN具有优秀的自交联能力和热稳定性。随后,将DPPN用于制备阻燃固态环氧树脂复合材料,对该复合材料的固化行为、热稳定性、燃烧行为及残炭形貌进行分析。研究发现,10% DPPN的添加提高了环氧树脂的固化反应温度,同时也使复合材料的残炭量(800 ℃)由纯EP的11.0%提升至17.1%,其热释放速率峰值pHRR、总热释放量THR、烟生成速率峰值pSPR和生烟总量TSP则较纯EP分别下降了53.8%、42.1%、32.1%和25.0%,10% DPPN环氧树脂具有良好的防火性能。

关键词: 环氧树脂, 合成, 自交联作用, 阻燃机理, 复合材料

Abstract: A novel self-crosslinking flame retardant with phosphorus-containing (DPPN) was synthesized via substitution reaction, and its structure was characterized by ¹H-NMR and ³¹P-NMR. The results of self-crosslinking behavior and thermal stability for DPPN showed that DPPN has excellent self-crosslinking ability and thermal stability, which are evaluated by DSC and TGA respectively. The curing behavior, thermal stability, combustion behavior and morphology of char residue of the solid EP with DPPN were thoroughly investigated. It was found that the addition of 10% DPPN not only increased the curing temperature of EP, but also elevated the char residue (800 ℃) of EP from 11.0% for neat EP to 17.1%. Moreover, compared to neat EP, the peak heat release rate pHRR, total heat release THR, peak smoke producerate pSPR and total smoke production TSP of EP/10% DPPN composite were respectively reduced by 53.8%, 42.1%, 32.1%, 25.0%, and 10% DPPN EP has good fire resistance.

Key words: epoxy resin, synthesis, self-crosslinking, flame retardancy mechanism, composites

中图分类号:

TB332

王恒旭, 徐锦佳, 林芷芊, 徐翰林, 楼高波, 戴进峰, 傅深渊. 一种新型含磷自交联阻燃剂的制备及对固态环氧树脂热稳定性和燃烧性能的影响[J]. 复合材料科学与工程, 2023, 0(6): 59-66.

WANG Hengxu, XU Jinjia, LIN Zhiqian, XU Hanlin, LOU Gaobo, DAI Jinfeng, FU Shenyuan. Synthesis of a novel self-crosslinking flame retardant with phosphorus-containing and its thermal stability and combustion performance of solid epoxy resin[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(6): 59-66.

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一种新型含磷自交联阻燃剂的制备及对固态环氧树脂热稳定性和燃烧性能的影响

Synthesis of a novel self-crosslinking flame retardant with phosphorus-containing and its thermal stability and combustion performance of solid epoxy resin

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