摘要
利用热分析技术对受油类污染棉纤维的热分解特性进行了研究。分析了受污程度对棉纤维热解特性的影响,实验表明,随着受污程度的增加,棉纤维热分解起始温度和主降解阶段的平均活化能都不断降低,其中,受污程度最高样品的热分解起始温度比未受污样品提前了84℃,平均活化能减少了大约230 kJ·mol-1。初步建立了受污程度与热分解起始温度及平均活化能的定量关系模型,为评价特定场所的火灾危险性提供依据。
Thermal pyrolysis characteristics of cotton fibers that were polluted by oil were studied by using thermal analysis technology. The influence of the polluted cotton fiber pyrolysis characteristics was analyzed qualitatively. Experiments show that cotton fiber＇ s initial thermal decomposition temperature and the main phase of the average activation energy are being reduced down with the increase of level of pollution. Compared with pure cotton fibers, the initial thermal decomposition temperature and the average activation energy of the polluted cotton fiber decreased 84℃ and 230 kJ . mol^-1 separately. The quantitative relationship model of the polluted degree, initial thermal decomposition temperature and the average activation energy was built respectively, which can provide a basis for the fire risk assessment of specific places.
出处
《武警学院学报》
2013年第10期5-7,共3页
Journal of the Armed Police Academy
关键词
棉纤维
热分析
热解特性
cotton fiber
thermal analysis
thermal pyrolysis characteristics
