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利用溶液共混法制备聚碳酸亚丙酯/聚甲基丙烯酸甲酯(PPC/PMMA)复合材料,采用热重分析法研究PPC/PMMA热性能,结果表明PMMA的加入可以有效提高PPC的热稳定性能。以多升温速率法对PPC/PMMA热降解动力学进行研究,利用Friedman法、Kissinger法、Flynn-Wall-Ozawa法、Coats—Redfem方法对热降解动力学数据进行分析,确定PPC/PMMA热分解反应机理函数为Avrami-Erofeev方程,遵循一种热降解机理。
Poly (propylene carbonate) / polymethylmethacrylate (PPC / PMMA) composites were prepared by solution blending method. The thermal properties of PPC / PMMA were investigated by thermogravimetric analysis. The results showed that the addition of PMMA can effectively improve the thermal stability of PPC / PMMA composites. performance. The thermal degradation kinetics of PPC / PMMA was investigated by multi-heating rate method. The thermal degradation kinetics data were analyzed by Friedman method, Kissinger method, Flynn-Wall-Ozawa method and Coats-Redfem method. The mechanism function is the Avrami-Erofeev equation, which follows a thermal degradation mechanism.