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 (9): 1384-1387.

• • 上一篇    下一篇

聚丙烯腈织物热稳定性与燃烧特性研究

贾旭宏，陶 皖，马俊豪，智茂永   

  1. 中国民用航空飞行学院 民航安全工程学院，四川 广汉 618307
  • 出版日期:2021-09-15 发布日期:2021-09-15
  • 作者简介:贾旭宏(1985-)，男，中国民用航空飞行学院民航安全工程学院副教授，博士，主要从事表面活性剂及航空材料相关的研究，四川省广汉市南昌路四段46号，618307。

tudy on thermal stability and combustion characteristics of polyacrylonitrile fabric

JIA Xu-hong，TAO Wan，MA Jun-hao， ZHI Mao-yong   

  1. College of Civil Aviation Safety Engineering，Civil Aviation Flight University of China，Sichuan Guanghan 618307，China
  • Online:2021-09-15 Published:2021-09-15

摘要： 对聚丙烯腈(PAN)织物在空气气氛下的热稳定性和3种热辐射强度下的燃烧特性进行研究。结果表明，PAN织物在空气气氛中的热分解过程主要包括3个失重阶段；随着热辐射强度的增大，PAN织物点燃时间有所提前，热释放速率和产烟率的峰值均得到了一定程度的提高，到达峰值的时间均有不同程度的提前，质量损失率增加，且初始热分解时间提前；当热辐射强度为25 kW/m2时，PAN织物的燃烧不充分，烟密度最大；热辐射强度越大，烟气扩散越快，且PAN织物的火灾性能指数值减小，火灾增长指数值增大；PAN织物具有较高的火灾危险性。

关键词: 聚丙烯腈织物, 热稳定, 燃烧特性, 火灾危险性

Abstract: The thermal stability of PAN fabrics under air atmosphere conditions and combustion characteristics under three thermal radiation intensity conditions were investigated. The results showed that the thermal decomposition process of PAN fabric in air atmosphere mainly consists of three weight loss stages. With the increase of heat radiation intensity, the ignition time of PAN fabric is advanced; the peak of heat release rate and smoke production rate are increased to some extent, and the time to peak heat release rate was advances to different degrees; the mass loss rate is increased and the initial thermal decomposition time is advanced. The smoke density of PAN fabric is the highest when the thermal radiation intensity is 25 kW/m2 as the combustion is inadequate. The greater the heat radiation intensity, the faster the smoke diffusion. The fire performance index value decreases and the fire growth index value increases which indicates that the PAN fabric has a higher fire hazard.

Key words: polyacrylonitrile fabric, thermal stability, combustion characteristics, fire hazard