中国塑料 ›› 2021, Vol. 35 ›› Issue (6): 125-129.DOI: 10.19491/j.issn.1001-9278.2021.06.019

• 综述 • 上一篇    下一篇

聚合物PVT特性测试技术及状态方程进展

黄飞(), 伍先安, 王建, 杨卫民, 谢鹏程()   

  1. 北京化工大学机电工程学院,北京 100029
  • 收稿日期:2020-10-30 出版日期:2021-06-26 发布日期:2021-06-23
  • 作者简介:黄飞(1995—),男,在读硕士研究生,h15010709756@163.com

Research Progress in Polymeric PVT Test Techniques and State Equations

HUANG Fei(), WU Xianan, WANG Jian, YANG Weimin, XIE Pengcheng()   

  1. College of Mechanical and Electrical Engineering,Beijing University of Chemical and Technology,Beijing 100029,China
  • Received:2020-10-30 Online:2021-06-26 Published:2021-06-23
  • Contact: XIE Pengcheng E-mail:h15010709756@163.com;xiepc@foxmail.com

摘要:

对聚合物压力?体积?温度(PVT)特性和测试技术重要性进行了阐述。介绍了PVT测试技术的发展现状,其中包括2种传统测试技术:直接加压法(圆筒柱塞法)和间接加压法(封闭液法);基于传统测试方法改进的测试技术:高冷却速率柱塞法、改进型封闭液法和基于加工成型设备的在线测试技术。并且简述了聚合物PVT状态方程的发展现状。最后,总结了PVT特性和测试技术存在的问题和今后的研究方向。

关键词: 注射成型, 压力?体积?温度特性, Tait方程

Abstract:

This paper discussed the importance of PVT characteristics and test technology and introduced the development status of PVT test technologies. A direct pressurization technique (piston?die technique) and an indirect pressurization technique (confining?fluid technique) as two traditional technologies were first introduced. The improved technologies based on traditional test techniques were further introduced, which included a high cooling speed piston?die technique, a modified confining?fluid technique and an online technology based on processing and molding equipment. The state of the art in the development of PVT equations of state for polymers was also briefly described. In addition, the problems and future research directions of PVT characterization and test techniques were summarized.

Key words: injection molding, pressure?volume?temperature characteristics, Tait equation

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