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PROGRESS IN STUDYING OF DRYING OF SOLVENT-COATED POLYMER FILMS

XIA Zhengbin;TU Weiping;YANG Zhuoru;CHEN Huanqin   

  • Online:2001-04-25 Published:2001-04-25

聚合物涂膜干燥研究进展

夏正斌; 涂伟萍; 杨卓如; 陈焕钦   

  1. 华南理工大学化工所

Abstract: The present knowledge about the formation process of solvent-coated polymer films and its mechanism of drying are reviewed in this paper. In order to understand and analyze drying process, optimize the design of dryers, modeling the drying process has been an important research directions. However,it is very difficult to obtain all necessary data, especially the data of diffusion coefficients. Vrentas-Duda free-volume theory is regarded as an efficient tool in estimating the diffusion coefficient of solvents in a binary polymer-solvent system. According to the development in modeling the drying of polymer films, formation of drying defects, and measurement or calculation of solvent diffusion coefficients in coating systems, the areas which represent opportunities and needs for further study on the drying of coatings film are also discussed.

摘要: 评述了人们对于聚合物涂膜形成过程及干燥机理的认识 ,并以涂膜干燥过程的模拟、涂膜缺陷的形成、扩散系数的测定及估算等方面的研究进展为依据 ,讨论了聚合物涂膜干燥过程中需要进一步研究和开发的领域