Advance composites with thermoplastic particles at the interface

Details Advance composites with thermoplastic particles at the interface Advance composites with thermoplastic particles at the interface

1989-05-17

1990-09-18

Thomas, Alexander S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428327, 428332, 428340, 428902, B32B 528, B32B 530

Patent

active

049578014

ABSTRACT:
The invention relates to prepregs of fiber-reinforced thermosetting resin that have a coating comprising thermoplastic particles on one or both outer surfaces. Upon lamination of the prepregs into a composite, the layer comprising thermoplastic particles at the surface of the prepreg is formed into a discrete resin layer in the composite at the interface between fiber-reinforced thermosetting resin layers. The laminated composite materials have improved toughness and impact strength due to the thermoplastic particulate material at the interface and yet the composites still retain desired mechanical properties under hot/wet conditions.

REFERENCES:
patent: 3472730 (1969-10-01), Frigstad
patent: 4539253 (1985-09-01), Hirschbuehler et al.
patent: 4604319 (1986-08-01), Evans et al.

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