Method of treating fiber reinforced plastic parts to enhance...

Details Method of treating fiber reinforced plastic parts to enhance... Method of treating fiber reinforced plastic parts to enhance...

C - Chemistry, Metallurgy

08

J

204/91.34

C08J 5/12 (2006.01) B29C 59/16 (2006.01) B29C 71/04 (2006.01) B29C 35/08 (2006.01)

Patent

CA 1326644

Abstract of the Disclosure Treatment of fiber-reinforced plastics (FRP) surfaces for brief periods of time to exposure to short wavelength (not more than 270 nm) ultraviolet light in air, (i.e., UV/Ozone), removes loosely-bound low molecular organic material and oxidizes the surfaces and hence increases the adhesive potential of FRPs to polyurethane adhesives. Furthermore, FRP polymer surfaces treated by this process retain more adhesive strength after aging at elevated temperature in the presence of moisture than untreated surfaces or surfaces washed with isocyanate in methylene chloride. Epoxy adhesives, also can be used.

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