聚碳酸亚丙酯(PPC)纤维膜的制备及其热性能研究

Preparation and Thermal Performance of Polypropylene Carbonate (PPC) Fiber Membrane

摘要: 聚碳酸亚丙酯(PPC)是以二氧化碳为原料合成的生物降解高分子材料，作为一种双向环保材料，有着广泛的应用前景。本文采用静电纺丝法制备PPC纤维膜，通过前期探索固定推助速度、接收距离、电压大小和接收辊转速调节纺丝液的浓度和针头尺寸，确定制备性能最佳的纤维膜的工艺参数。利用红外光谱、扫描电子显微镜(SEM)、差示扫描量热仪(DSC)和热失重仪(TGA)对PPC纤维膜的结构、纤维直径和形貌、热稳定性能等进行分析，结果表明，当纺丝液浓度为10%时制备的纤维膜的直径最细且均一，热稳定性能最好。本文为医用敷料、纸尿裤等应用提供了一种新材料。

Abstract: Polypropylene carbonate (PPC) is a biodegradable polymer material which synthesized from carbon dioxide as a raw material, as a two-way environmental protection material, has a wide range of application prospects. In this paper, PPC fiber membranes were prepared by electrospinning. The concentration of the spinning solution and the inner diameter of needles were adjusted through the exploration of the fixed pushing speed, the receiving distance, the voltage and the receiving roller rotation speed to determine the technological parameters of the fiber membrane with the best preparation performance. The structure, fiber diameter, morphology and thermal stability of the PPC fiber membrane were analyzed by infrared spectroscopy, scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and thermogravimetry (TGA). The results showed that when the concentration of the spinning solution was 10%, the diameter of the fiber membrane prepared was the finest and uniform, and the thermal stability was the best. This paper provided a new material for medical dressings, diapers, and other applications.