Influence of non-volatile additives on the diffusion of solvents in polymeric coatings

被引：9
|
作者：
Mueller, M. [1 ]
Scharfer, P. [1 ]
Kind, M. [1 ]
Schabel, W. [1 ]
机构：
[1] Karlsruhe Inst Technol KIT, Inst Thermal Proc Engn, D-76131 Karlsruhe, Germany
来源：
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2011年 / 50卷 / 5-6期
关键词：
Solvent diffusion in polymers; Non-volatile additives; Drying; IMRS;
D O I：
10.1016/j.cep.2010.10.001
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In many cases, the mutual diffusion coefficient of organic solvents in polymeric solutions limits the drying rate during the drying process. It is known, that the concentration of the solvent in the solution has a significant influence on the diffusion coefficient. The effects of small amounts of non-volatile additives in polymeric solutions on the diffusion coefficient of the solvent are often neglected. In this work, the influence of non-volatile plasticizer triphenylphosphat on the mutual diffusion coefficient of methylenchlorid in the system methylenchlorid-triphenylphosphat-polyvinyl acetate was determined. The results showed that small amounts of plasticizer have significant influence on the mutual diffusion coefficient of solvents in polymeric coatings - especially at low solvent concentrations. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：551 / 554
页数：4
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