化工进展 ›› 2023, Vol. 42 ›› Issue (7): 3413-3419.DOI: 10.16085/j.issn.1000-6613.2022-1901

• 专栏:智能化工装备与安全 • 上一篇    下一篇

阻燃型环氧树脂的燃烧数值模拟

单雪影1(), 张濛1, 张家傅1, 李玲玉2, 宋艳2, 李锦春2   

  1. 1.常州大学安全科学与工程学院,江苏 常州 213164
    2.常州大学材料科学与工程学院,江苏 常州 213164
  • 收稿日期:2022-10-13 修回日期:2022-12-01 出版日期:2023-07-15 发布日期:2023-08-14
  • 通讯作者: 单雪影
  • 作者简介:单雪影(1986—),女,博士,副教授,主要研究方向为聚合物材料的火灾安全。E-mail:xyshan@cczu.edu.cn
  • 基金资助:
    江苏省研究生科研与实践创新计划(SJCX23_1586)

Numerical simulation of combustion of flame retardant epoxy resin

SHAN Xueying1(), ZHANG Meng1, ZHANG Jiafu1, LI Lingyu2, SONG Yan2, LI Jinchun2   

  1. 1.School of Safety Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
    2.School of Materials Science and Engineering, Changzhou University Changzhou 213164, Jiangsu, China
  • Received:2022-10-13 Revised:2022-12-01 Online:2023-07-15 Published:2023-08-14
  • Contact: SHAN Xueying

摘要:

作为热固性树脂,环氧树脂(EP)化学结构决定了其易燃,且燃烧时伴随热量和烟气的释放,具有较大的火灾危险性。本文工作首先制备阻燃型EP,结合热重分析和锥形量热仪测试的数据进行材料燃烧数值模拟,对阻燃型EP的火灾危险性进行分析。热重分析的结果表明阻燃剂的加入增加了EP的成炭量;锥形量热仪的分析结果显示阻燃剂的添加使EP的点燃难度加大,热释放速率峰值、总热释放量、烟释放速率峰值和总烟释放量相较于纯EP均有不同程度的降低,表明阻燃型EP具有良好的阻燃性能。材料燃烧数值模拟结果与仪器测试分析的结果相吻合,显示阻燃型EP燃烧速率较为缓慢,热释放量和热传播速率、烟气比率和烟气流动速率明显低于纯EP,因此阻燃型EP材料的火安全性提高。

关键词: 安全, 数值模拟, 复合材料, 阻燃, 火灾危险性

Abstract:

As a thermosetting resin, the chemical structure of epoxy resin (EP) determines its flammability and its combustion is accompanied by the release of heat and smoke, which has a big fire hazard problem. In this work, flame retardant EP was prepared firstly, then the fire hazard of the flame retardant EP was analyzed by the numerical simulation combined with the combustion test data, which were measured by the thermogravimetric analysis and cone calorimeter test. The results of thermogravimetric analysis showed that the addition of flame retardant improved the char formation of EP. The analysis results of cone calorimeter test indicated that the addition of flame retardant made EP ignition more difficult. The peak value of heat release rate, the total heat release, the peak value of smoke production rate and the total smoke production were decreased. Thus, flame retardant EP showed good flame retardancy. Consisting with the instrument test data, numerical simulation results of material combustion showed that the combustion rate of the flame retardant EP was relatively low. The heat release and heat transfer rate, the smoke production rate and smoke flow rate were significantly lower than those of pure EP. Therefore, the fire safety of the flame retardant EP materials was improved.

Key words: safety, numerical simulation, composites, flame retardant, fire hazard

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