聚合物原位成纤方法及其在PP共混体系中的应用

In-situ fibrillation methods of polymer blends and their application in PP-based blends

介绍了聚合物共混体系原位成纤原理、影响因素、制备方法及聚丙烯(PP)与其他聚合物原位成纤共混体系研究进展,包括PP/聚酰胺(PA)、PP/聚对苯二甲酸乙二醇酯(PET)原位成纤共混体系等。重点阐述了不同共混比、相容性、黏度比和加工参数(如拉伸速率、螺杆转速、加工温度等)等对PA或PET在PP中的成纤形态和PP力学性能、结晶性能等的影响。

This paper reviewed the research progress in in-situ fibrillation polymer blends in recent years and introduced the principle,influencing factors,and preparation methods of in-situ fibrillation for PP-based blends,including PP/PA6 and PP/PET in-situ fibrillation blends.The effects of blending ratios,viscosity ratios,and processing parameters such as drawing rate,screw rotation speed,and processing temperature on the morphology of PA or PET microfibers in PP were discussed.The mechanical properties and crystallization behavior of PP were also analyzed.