典型室内装修壁纸的热解特性和动力学研究
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摘要
对3种典型室内装修用壁纸在不同升温速率下的热解特性进行实验研究。结果认为,其热解过程均包括3个阶段;随升温速率的升高,壁纸的初始热解温度、终止温度、最大失重速率及达到最大失重速率温度升高,反应温度区间变宽;通过对3种壁纸在同一升温速率下的热特性的对比分析,得到PVC壁纸的初始热解温度最低,易热分解;无纺壁纸的主要反应温度区间最窄,热解速率最快。采用Starink法和Flynn-Wall-Ozawa法对3种壁纸进行了热解动力学分析,得到了不同升温速率下的表观活化能。
The pyrolytic characteristic of three typical home wallpapers on the market was experimentally investigated at different heating rates. The results showed that the pyrolysis process of the three wallpapers includes three stages;the initial temperature, final temperature, the maximum weight loss rate and the temperature when the maximum weight loss rate occurs increase, and the reaction temperature ranges widen with the increase of the heating rate;comparing the thermal characteristics of the three wallpapers at the same heating rate, the initial pyrolysis temperature of PVC wallpaper is the lowest and the thermal decomposition is easier; the main reaction temperature range of the non-woven wallpaper is the narrowest and the pyrolysis rate is the fastest. The pyrolysis kinetics of three typical wallpapers was analyzed by Starink method and Flynn-Wall-Ozawa method, and the apparent activation energies at different heating rates were obtained.
The pyrolytic characteristic of three typical home wallpapers on the market was experimentally investigated at different heating rates. The results showed that the pyrolysis process of the three wallpapers includes three stages;the initial temperature, final temperature, the maximum weight loss rate and the temperature when the maximum weight loss rate occurs increase, and the reaction temperature ranges widen with the increase of the heating rate;comparing the thermal characteristics of the three wallpapers at the same heating rate, the initial pyrolysis temperature of PVC wallpaper is the lowest and the thermal decomposition is easier; the main reaction temperature range of the non-woven wallpaper is the narrowest and the pyrolysis rate is the fastest. The pyrolysis kinetics of three typical wallpapers was analyzed by Starink method and Flynn-Wall-Ozawa method, and the apparent activation energies at different heating rates were obtained.
引文
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[5]李利君,王新钢,卢国建.阻燃PVC壁纸燃烧性能分析[J].消防科学与技术,2016,35(7):993-996.
[6]李利君,王新钢,卢国建.环保阻燃PVC壁纸性能分析[J].消防科学与技术,2015,34(12):1653-1655
[7]任宁,张建军.热分析动力学数据处理方法的研究进展[J].化学进展,2006,(4):410-416.
[8]李芬,陈港.壁纸的生产工艺特性及应用[J].上海造纸,2008,(1):41-47.
[9]王莉,李晓春,朱明.浅析湿法无纺布壁纸制造工艺[J].中国造纸学报,2012,27(1):40-44.
[10]余仕发,林淑芳.废纸脱墨浆在壁纸原纸生产中的应用[J].纸和造纸,2015,34(1):3-4.
[11]陈港.纸浆、纸张热性能及其评价方法研究[D].广州:华南理工大学,2013.
[12]JUN D,LUO Q H,MENG L H,et al.Combustion characteristics of typical model components in solid wasteon a macro-TGA[J].Journal of Thermal Analysis and Calorimetry,2018,132:553-562.
[13]郭慧敏,李翔宇,王海彦,等.纤维素和聚丙烯共催化热解热重分析及动力学研究[J].太阳能学报,2017,38(10):2705-2711.
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[15]陈智琴,刘洪波,何月德,等.高残炭率酚醛树脂的耐热性能研究[J].工程塑料应用,2006,34(11):56-60.