초록 ▼

A woven fabric prepreg comprising at least [A] a woven fabric as reinforcing fibers, [B] a thermosetting resin or thermosetting resin composition and [C] fine particles of a resin and having a cover factor of 95% or more, and a honeycomb sandwich panel, comprising skin panels fabricated by said wove

A woven fabric prepreg comprising at least [A] a woven fabric as reinforcing fibers, [B] a thermosetting resin or thermosetting resin composition and [C] fine particles of a resin and having a cover factor of 95% or more, and a honeycomb sandwich panel, comprising skin panels fabricated by said woven fabric prepreg and [D] a honeycomb core can be obtained. The woven fabric prepreg little changes in tackiness with the lapse of time and has moderate drapability, being excellent in self adhesiveness to the honeycomb core when used as skin panels of a honeycomb sandwich panel. Furthermore, the honeycomb sandwich panel obtained has a small porosity in the skin panels fabricated by the cured prepreg and has excellent surface smoothness with few pits and depressions on the surfaces of the skin panels.

대표청구항 ▼

1. A woven fabric prepreg comprising:(A) a woven fabric comprising a plurality of reinforcing fibers; (B) a matrix resin surrounding said fibers and comprising a thermosetting resin or a thermosetting resin composition; and (C) 2-15% by weight based upon the weight of resin (B)+(C) of fine particles

1. A woven fabric prepreg comprising:(A) a woven fabric comprising a plurality of reinforcing fibers; (B) a matrix resin surrounding said fibers and comprising a thermosetting resin or a thermosetting resin composition; and (C) 2-15% by weight based upon the weight of resin (B)+(C) of fine particles of at least one resin selected from the group consisting of polyamides, polyethers, polyesters, polyimides, polysulfones and polyurethanes, said particles having a particle size of 1-50 .mu.m; wherein said woven fabric prepreg has a cover factor of 95% or more.