Preparing polymeric matrix composites using an aqueous slurry te

Details Preparing polymeric matrix composites using an aqueous slurry te Preparing polymeric matrix composites using an aqueous slurry te

1991-11-06

1993-10-12

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1563309, 428367, 428408, 524538, 524608, C09J 502

Patent

active

052521680

ABSTRACT:
An aqueous process was developed to prepare a consolidated composite laminate from an aqueous slurry. An aqueous poly(amic acid) surfactant solution was prepared by dissolving a poly(amic acid) powder in an aqueous ammonia solution. A polymeric powder was added to this solution to form a slurry. The slurry was deposited on carbon fiber to form a prepreg which was dried and stacked to form a composite laminate. The composite laminate was consolidated using pressure and was heated to form the polymeric matrix. The resulting composite laminate exhibited high fracture toughness and excellent consolidation.

REFERENCES:
patent: 4169866 (1979-10-01), von Bonin et al.
patent: 4442248 (1984-04-01), Kanda et al.
patent: 4480088 (1984-10-01), Pike
patent: 4601945 (1986-07-01), Pike

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