| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for conveniently and efficiently removing an epoxy resin prepolymer, and moreover to provide a method for conveniently recovering carbon fiber from a carbon fiber-reinforced resin intermediate material before curing with a high yield and yet without quality deterioration. <P>SOLUTION: In the method for removing an epoxy resin prepolymer, the epoxy resin prepolymer is brought into contact with a solvent including an aprotic organic solvent with dipole moment of 3.0 or more, and the epoxy resin prepolymer is made to dissolve in the solvent. In the method for separating and recovering carbon fiber from a carbon fiber-reinforced resin intermediate material, the carbon fiber-reinforced resin intermediate material including the carbon fiber, the epoxy resin prepolymer, and a curing agent is brought into contact with a solvent including an aprotic organic solvent with dipole moment of 3.0 or more, and the epoxy resin prepolymer is made to dissolve in the solvent. <P>COPYRIGHT: (C)2013,JPO&INPIT |
