| 摘要 |
PROBLEM TO BE SOLVED: To provide a roving prepreg having excellent mechanical properties and moldability at a low pressure, and a method of manufacturing the roving prepreg. SOLUTION: The roving prepreg comprises a reinforcing fibrous material and a matrix resin and has an interlaminar adhesion area ratio, when molded at a molding temperature of 110 deg.C under a molding pressure of 0.02 MPa, of >=80%. The roving prepreg is manufactured by adjusting the viscosity at 50 deg.C of the matrix resin to <=1,000 mPa.s, heating the matrix at 40-60 deg.C for 25-100 hours to thicken the viscosity at 50 deg.C of the matrix resin to 50,000-200,000 mPa.s, and then impregnating a reinforcing fibrous material with the resulting matrix resin.
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