Print Email Facebook Twitter A New Method of Impregnating PEl Sheets for the In-Situ Foaming of Sandwiches Title A New Method of Impregnating PEl Sheets for the In-Situ Foaming of Sandwiches Author Provo Kluit, P.W.C. Faculty Aerospace Engineering Date 1998-12-31 Abstract A new method is described to make foamable films for the production of in-situ foamed sandwiches. The method consists of placing a polymer film in a bath with a swelling agent and, when equilibrium swelling has been reached, placing the film in a bath with a second liquid. If the liquids are miscible the swelling agent in the film will be replaced by the second liquid. The polymer used for the research described in this report was polyetherimide and the swelling agent was acetone. Sandwiches were produced with the fomable films made in th is manner using ethanol, 1,1,1- trichloroethane and water as blowing agents. Some mechanical properties of these sandwiches were tested. Subject bewerkingplastic foliesandwich panelen To reference this document use: http://resolver.tudelft.nl/uuid:148dc7b2-c589-469b-970f-ca13214af336 Publisher Delft University Press ISBN 9040715904 Source Series 07, Aerospace Materials 07 Part of collection Institutional Repository Document type book Rights (c) 1998 Faculty of Aerospace Engineering, TU Delft Files PDF 1392_328_4.pdf 3.09 MB Close viewer /islandora/object/uuid:148dc7b2-c589-469b-970f-ca13214af336/datastream/OBJ/view