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Measurement system gauges thickness of polymer films by extrusion process control


Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
381 KB
Volume
8
Category
Article
ISSN
0141-9331

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Laser interferometric measurement of pol
✍ Katherine L. Saenger; Ho-Ming Tong πŸ“‚ Article πŸ“… 1987 πŸ› John Wiley and Sons 🌐 English βš– 428 KB πŸ‘ 3 views

A simple interferometric technique is described for monitoring thickness changes in solution-cast polymer films as they are dried and cured. This paper follows a freshly spun solution of polyamic acid in NMP as it is converted into a cured polyimide film of 6 pm in thickness. The technique is shown