A model for the dehydration of waterborne basecoat

被引：0
|
作者：
Paul Henshaw
Lindita Prendi
Tony Mancina
机构：
[1] Daimler Chrysler Canada,DCC/UofW, Automotive Research and Development Centre
[2] University of Windsor,Dept. Civil & Environmental Engineering
来源：
Journal of Coatings Technology and Research | 2006年 / 3卷
关键词：
Drying; waterborne; defects; automotive-OEM; process modeling; simulation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In vehicle manufacturing, a common topcoat process sequence is the application of a waterborne basecoat, partial dehydration, application of a solventborne clearcoat, then curing at approximately 150°C. Anecdotal evidence suggests that under “harsh” (high temperature and velocity) dehydration conditions, a skin can be formed, which can trap excess water in the basecoat. Upon curing, the excess water forms vapor that can burst through the topcoat, leading to surface imperfections, termed pinholes or pops.
引用
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页码：285 / 294
页数：9
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