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A novel approach to impregnating fiberglass without solvent by reverse roll coating

Posted on:1999-05-20Degree:D.EngType:Dissertation
University:University of Massachusetts LowellCandidate:Chang, Hsiu-TeFull Text:PDF
GTID:1461390014467800Subject:Plastics Technology
Abstract/Summary:
A revolutionary process for impregnating fiberglass without solvent is presented in this study. A complete theoretical flow analysis for the unique coating system was combined with that of the flow analysis of calendering, and two-roll coating which incorporated the reverse coating and slide coating systems. The flows at the puddle, in between the nip, and the metered coating film flow on to the web are the three critical areas in this coating system. Historical approaches have been concentrated only on one of the three areas would still have to deal with processing problems one after the other. The unique approach in this dissertation was to consider all three areas at the same time which enable the coating system get right into the production mode in a timely matter.;The study also extended to the experiments of validity confirming the stability diagram of the coating system. A Beta gauge was used to obtain the data for film uniformity. Viscosity and surface tension of the materials, the most important factors, were also measured. This information is essential for predicting the stability of the dynamic flow in the coating system.;A business plan is proposed as a part of the dissertation. Strategic planning, market analysis, and financial analysis for a new plant along with the new technology are included in the business plan.
Keywords/Search Tags:Coating, Flow
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