Synthesis and Degradation Properties of Heat-resistant Polymer based on Cyclotriphosphazene

5th Annual International Conference on Material Engineering and Application

工业技术（总论）;材料科学

Guo, Yani^1 ; Liang, Liyun^2 ; Liu, Chengmei^2

School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan

430073, China^1

School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan

430074, China^2

关键词: Cyclotriphosphazenes;    Decomposition activation energy;    Decomposition mechanism;    Degradation temperatures;    Heat-resistant polymers;    Self-extinguishing;    Thermal decomposition mechanism;    Thermal Performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/484/1/012041/pdf
DOI  :  10.1088/1757-899X/484/1/012041

来源: IOP

【 摘 要 】

The thermal performance and the decomposition mechanism of the cyclotriphosphazene based homopolymer were investigated by means of TGA, DTG and integrated TG/FTIR analysis. The thermal decomposition of the homopolymer between 100 and 800 °C includes two stages; the initial degradation temperature of the first stage is about 377 °C with the 292 kJ/mol of average decomposition activation energy. Accordingly, the possible thermal decomposition mechanism of the homopolymer was proposed. In addition, the LOI (34.3 %) calculated from the amount of char remaining indicates the homopolymer is self-extinguishing in air.