作者：姜伟, 梁浩钧, 张吉林, 何大勇, 姜炳政
关键字：polypropylene, PVT behavior, molten state, film, Tait equation
论文来源：期刊
具体来源：中国塑料, 2002
发表时间：2002年

摘要：本文采用PVT仪研究了薄膜用聚丙烯树脂在熔融状态下的压力-体积-温度（PVT）行为，测定了不同温度和压力条件下聚丙烯熔体的比容变化。利用Tait方程对实验数据进行了拟合，获得了聚丙烯树脂在熔融状态下的PVT关系参数。研究了压力对聚丙烯熔体比容和体积膨胀系数的影响规律，分析了PVT行为与聚丙烯薄膜加工工艺的关系。研究结果对聚丙烯薄膜的挤出成型和加工工艺优化具有重要的指导意义。

Abstract: The pressure-volume-temperature (PVT) behavior of polypropylene resin for film in the molten state was investigated using a PVT apparatus. The specific volume changes of polypropylene melt under different temperature and pressure conditions were measured. The Tait equation was employed to fit the experimental data, and the PVT relationship parameters of polypropylene resin in the molten state were obtained. The effects of pressure on the specific volume and thermal expansion coefficient of polypropylene melt were studied.

论文链接：https://zypt.wtu.edu.cn/s/net/cnki/...