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 ›› 2020, Vol. 39 ›› Issue (9): 1198-1201.

• • 上一篇    下一篇

对位芳纶和阻燃粘胶纤维的热解及燃烧作用

朱方龙1，李鑫2，冯倩倩1   

  1. 1. 惠州学院，广东惠州516007；2. 中原工学院，河南郑州450007
  • 出版日期:2020-09-15 发布日期:2020-09-15
  • 作者简介:朱方龙，男，惠州学院教授，主要从事阻燃与金属化织物研究，广东省惠州市演达大道46 号，516007。
  • 基金资助:
    国家重点研发计划项目（2017YFB0309001）;国家自然科学基金项目（51576215）

Pyrolysis and combustion of para aramid and flame retardant viscose fiber

ZHU Fang-long1, LI Xin2, FENG Qian-qian1   

  1. 1. Huizhou University, Guangdong Huizhou 516007, China;2. Zhongyuan University of Technology, Henan Zhengzhou 450007, China
  • Online:2020-09-15 Published:2020-09-15

摘要： 使用微尺度热重仪TG 及微型量热燃烧仪MCC 分析了芳纶1414、阻燃粘胶纤维及其混合材料的热解及燃烧特性，考察了共热解、燃烧过程的协效作用。结果表明：TG 共热解过程主要分为阻燃粘胶纤维第一阶段热解及芳纶1414 纤维的第二阶段热解，随着阻燃粘胶含量提高，混合致第一阶段初始热分解温度逐渐前移、第二阶段初始热分解温度逐渐后移。MCC 的HRR 实验值与计算值之差提示芳纶/粘胶为50/50、35/65、25/75 三种混合比纤维材料在pHRR1 谱峰区域有一定的热解负协同效应，在pHRR2 谱峰区域五种混合比材料均有热解协同正效应，而其中又以芳纶/粘胶为35/65 的热解协同效应程度最弱；进一步通过均方根RMS 及氧指数LOI 预测计算论证了所有混合比材料中，芳纶/粘胶为35/65 时具有较弱的热解协同效应，从阻燃角度考虑更适合应用于阻燃防护服混纺织物。

关键词: 热解, 燃烧, 热释放, 阻燃纤维, 协同效应

Abstract: Using microscale thermogravimeter TG and micro calorimeter MCC, the pyrolysis and combustion characteristics of aramid 1414, flame retardant viscose fiber and the mixed materials were analyzed. The synergistic effect of co pyrolysis and combustion process was investigated. Results showed that, the co pyrolysis was mainly divided into the first stage of pyrolysis of flame retardant viscose fiber and second stage of pyrolysis of aramid 1414. With the increase of flame retardant viscose content, the mixing moved the first stage of initial thermal decomposition temperature forward, and the second stage of initial thermal decomposition temperature backward. The difference between HRR experimental data and calculation result of MCC showed that the 3 kinds of mixed fiber materials of aramid/viscose being 50/50, 35/65, 25/75 have negative synergistic effect of pyrolysis at the pHRR1 peak region, and all of the 5 kinds of mixed materials have positive synergistic effect of pyrolysis, with the synergistic effect of pyrolysis of aramid/viscose 35/65 being the weakest. Root mean square and oxygen index proved that of all the mixed materials, aramid/viscose 35/65 has weak synergistic effect of pyrolysis, and is more suitable for blended fabric of flame retardant protective clothing from the perspective of flame retardant.

Key words: pyrolysis, combustion, heat release, flame retardant fiber, synergistic effect