可降解聚碳酸亚丙酯(PPC)加工热稳定性较差。采用高压毛细管流变仪、傅里叶红外光谱仪(FT-IR)、热失重仪(TG)、拉力机和色差仪对工业级PPC 的加工热稳定性进行了系统测试和分析。结果表明，使用高压毛细管流变仪可以较好地评估 PPC 的加工热稳定性。热失重法可以评估 PPC 的加工热稳定性，但评估不同加工条件下或不同加工配方的 PPC 热稳定性灵敏度不高。其它方法均不适宜于评估该材料。本研究对 PPC 的加工有一定的指导作用，并为今后提高 PPC 加工热稳定性的研究提供技术支持。
Degradable poly (propylene carbonate)(PPC)plastic generally has poor processing thermal stability. High pressure capillary rheometer,FT-IR,TG,tensile machine and color difference meter were used to evalu-ate PPC’s processing thermal stability.The results show that PPC’s processing thermal stability can be evalua-ted successfully by high pressure capillary rheometer.TG can be used for evaluation but it has bad sensitivity for different processing conditions or different formulations of PPC.The other methods are not suitable for eval-uating this material.The research can give instructive effect on the process and thermal stability research of PPC in the future.
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