| 摘要 |
A tow prepreg obtained by impregnating a reinforced fiber bundle with a matrix resin composition including a component (A), a component (B), and a component (C'). Component (A): an epoxy resin. Component (B): an epoxy resin curing agent. Component (C'): a pre-gelling agent for which the temperature of minimum viscosity is 110°C or lower. Here, the temperature of minimum viscosity is the temperature at which the minimum viscosity appears on the highest temperature side when the viscosity of a sample obtained by adding 10 parts by mass of component (C') to 100 parts by mass of a bisphenol A-type epoxy resin having an epoxy equivalent of 190 ±6 g/eq and uniformly dispersing the component (C') therein, and dissolving 10 parts by mass of a boron trichloride/octylamine complex therein is measured while the temperature of the sample is increased at a rate of 2°C/minute. |
