Composite material with polyamide particles

摘要

Pre-impregnated composite material (prepreg) is provided that can be cured/molded to form composite parts having high compression strength under hot and wet conditions, as well as, high damage tolerance and interlaminar fracture toughness. The matrix resin includes a thermoplastic particle component that includes polyamide particles which are composed of the polymeric condensation product of a methyl derivative of bis(4-aminocyclohexyl)methane and an aliphatic dicarboxylic acid.

主权项

1. A pre-impregnated composite material comprising:
A) carbon fibers; and B) a matrix resin impregnated into said carbon fibers, said matrix resin comprising:
a) a resin component comprising from 20 wt % to 25 wt % bisphenol-F diglycidyl ether, based on the total weight of said matrix resin, and from 20 wt % to 25 wt % triglycidyl-p-aminophenol, based on the total weight of said matrix resin;b) a thermoplastic particle component comprising at least 95 wt %, based on the weight of said thermoplastic particle component, thermoplastic particles that comprise at least 95 wt % of a polyamide which is the polymeric condensation product of 1,10-decane dicarboxylic acid and an amine component having the formula Where both R2 are hydrogen and both R1 are methyl and wherein said thermoplastic particle component is present in an amount of from 10 wt % to 15 wt %, based on the total weight of said matrix resin;d) from 10 wt % to 26 wt % polyether sulphone, based on the total weight of said matrix resin; ande) from 17 wt % to 22 wt % diaminodiphenylsulphone as a curing agent, based on the total weight of said matrix resin wherein said pre-impregnated composite material, when cured, has a compression after impact of over 60 when tested in accordance with BSS7260 per BMS 8-276.