Composite structure for floor panels

Details Composite structure for floor panels Composite structure for floor panels

B - Operations, Transporting

32

B

B32B 3/12 (2006.01) B29C 70/08 (2006.01) B29D 24/00 (2006.01) B32B 5/12 (2006.01) E04C 2/16 (2006.01) E04C 2/24 (2006.01) E04C 2/284 (2006.01) E04C 2/36 (2006.01)

Patent

CA 2100548

Abstract of the Disclosure A composite flat structure for lightweight floor panels suitable particularly for use in aircraft comprises a rigid cellular core to each of two opposed surfaces of which inner and outer layers of fiber composite materials are attached. Each of the outer layers comprises a layer of E-glass cloth and a layer of unidirectional carbon fibers both embedded in a phenolic resin. The inner layers comprise a layer of unidirectional R-glass fibers which are embedded in an epoxy resin and which are arranged to lie transversely with respect to the unidirectional fibers in said carbon-fibers layer. The phenolic and the epoxy resins have substantially compatible gelling temperatures, curing times and curing temperatures so that they can be cured together. Preferably the core comprises an aramid honeycomb structure.

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