摘要
研究了聚醚醚酮(PEEK)的燃烧性能、热分解行为,采用Kissinger法对PEEK热分解反应过程进行了非等温热分解动力学研究。结果表明:PEEK具有一定的阻燃性,在50 kW/m^(2)的热辐射强度下,燃烧持续很短时间,生成的大量残炭阻止了燃烧的进一步进行,热释放速率峰值仅为52.15 kW/m^(2),活化能为113.14 kJ/mol,指前因子为1.631×10^(9)min^(-1),反应级数为4.9。采用Flynn-Wall-Ozawa法对该结果进行验证,求得活化能为117.5 kJ/mol,与Kissinger法求得的活化能相近,说明上述热分解动力学的结果正确且可靠。
The combustion performance and thermal decomposition of poly-ether-ether-ketone(PEEK)were observed.The non-isothermal thermal decomposition kinetics in the thermal decomposition reaction of PEEK was calculated by Kissinger method.The results show that the PEEK has certain flame retardancy,whose combustion lasts for a short time under the heat radiation intensity of 50 kW/m^(2),the carbon residues formed in reaction stop the further combustion and its peak heat release rate is just 52.15 kW/m^(2).Its activation energy is 113.14 kJ/mol,its pre-reference factor is 1.631×10^(9)min^(-1)and its reaction order is 4.9.These results are tested by Flynn-Wall-Ozawa method to obtain the value of activation energy of 117.5 kJ/mol,similar to the results by Kissinger method.Thus the thermal decomposition kinetic results are correct and reliable.
作者
刘全义
彭孝亮
王东辉
李泽锟
Liu Quanyi;Peng Xiaoliang;Wang Donghui;Li Zekun(Civil Aviation Flight University of China,Guanghan 618307,China)
出处
《合成树脂及塑料》
CAS
北大核心
2022年第3期27-30,共4页
China Synthetic Resin and Plastics
基金
国家自然科学基金(U2033206)
中国民用航空飞行学院研究生创新项目(X2021-18)。
