摘要 |
A prepreg for manufacturing a fibre-reinforced composite material, the prepreg comprising a layer of a layer of fibrous reinforcement fully impregnated by a matrix resin material, wherein at least the surface of the resin material has a viscosity and a tack at room temperature, and each prepreg has a stiffness at room temperature, such that when two of the prepregs are disposed as a vertical stack thereof at room temperature with adjacent resin material surfaces, the adjacent resin material surfaces are unadhered and form continuous air paths therebetween. |