| 摘要 |
<p>Resin compositions for fiber-reinforced composite materials characterized by comprising (A) epoxy resin, (B) hardener, and (C) additive as the essential ingredients and having a storage rigidity G' of 5 to 200 Pa throughout the whole temperature range of 70-100 °C when heated from 50 °C at a temperature rise rate of 1.5 °C/min by using plane parallel plates having an oscillation frequency of 0.5 Hz; and prepregs made by using the same. The prepregs are excellent in self-adhesion to honeycomb cores, give skin panels having a reduced porosity, an excellent surface smoothness, and appropriate tackiness and draping properties, thus being usable in aircrafts, automobiles, and industrial applications, especially as structural materials for aircrafts.</p> |
