| 摘要 |
<p>A curable sheet-like composite material comprising curable resin 28 and at least one layer of structural fibres 26, and comprising an outer backing layer having a shear-dependent rheology 24, whereby the backing layer exhibits essentially no flow at rest on the outer surface of the composite material and exhibits a viscous flow response to induced shear. The material may be a prepreg or semipreg. The fibres may be glass or carbon. The viscosity of the backing layer allows a roll of the material to be easily separated without the need for an additional release sheet.</p> |
