CPC B29C 70/22 (2013.01) [C08J 5/243 (2021.05); B29K 2063/00 (2013.01); B29K 2075/00 (2013.01); C08J 2371/12 (2013.01); C08J 2375/14 (2013.01); C08J 2471/12 (2013.01); C08J 2475/14 (2013.01)] | 12 Claims |
1. A prepreg obtained by impregnating carbon fiber with a matrix resin comprising a mixture of a thermoplastic resin, a thermosetting resin, and a curing agent,
wherein the prepreg is characterized in that:
the thermoplastic resin is a phenoxy resin;
the thermosetting resin is a urethane acrylate resin;
the thermoplastic resin and the thermosetting resin are compounded in a mass ratio of 15:85-35:65 (thermoplastic resin/thermosetting resin);
the carbon fiber is a carbon cloth or a unidirectional fiber; and
the curing agent is formed so as to include a first peroxide, a second peroxide, and a third peroxide having different one-minute half-life temperatures, the one-minute half-life temperature of the second peroxide being 20-60° C. higher than that of the first peroxide, and the one-minute half-life temperature of the third peroxide being 10-40° C. higher than that of the second peroxide.
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