| 摘要 |
PROBLEM TO BE SOLVED: To obtain an epoxy resin composition capable of imparting high mechanical properties, for instance, high flatwise tensile strength to a honeycomb sandwich panel through controlling the viscosity of the matrix resin itself when cured to form a uniform fillet, and to obtain a prepreg using the above epoxy resin composition. SOLUTION: This epoxy resin composition for self-adhesive facing materials has a volatile matter of 0.03-1.35 wt.% at 180 deg.C and the lowest viscosity of 8-20 p when cured. The epoxy resin composition comprises the following [A] to [E] components: [A] a polyfunctional epoxy resin with glycidylamino group, [B] an epoxy resin except [A], [C] a polyisocyanate, [D] a thermoplastic resin and [E] an aromatic amine-based curing agent. The other objective fiber- reinforced resin prepreg is obtained by impregnating 30-50 wt.% of the above resin in a fiber assembly.
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