초록 ▼

A prepreg containing a carbon fiber A and a thermosetting resin B, and in addition, satisfying at least one of the following (1) and (2). (1) a thermoplastic resin particle or fiber C and a conductive particle or fiber D are contained, and weight ratio expressed by compounding amount of C (parts by

A prepreg containing a carbon fiber A and a thermosetting resin B, and in addition, satisfying at least one of the following (1) and (2). (1) a thermoplastic resin particle or fiber C and a conductive particle or fiber D are contained, and weight ratio expressed by compounding amount of C (parts by weight)/compounding amount of D (parts by weight) is 1 to 1000. (2) a conductive particle or fiber of which thermoplastic resin nucleus or core is coated with a conductive substance E is contained.

대표청구항 ▼

1. A prepreg comprising: thermosetting resin; carbon fiber impregnated with the thermosetting resin; and conductive particles or fibers comprised in the thermosetting resin, wherein the conductive particles have a thermoplastic resin nucleus coated with a conductive substance and the conductive fibe

1. A prepreg comprising: thermosetting resin; carbon fiber impregnated with the thermosetting resin; and conductive particles or fibers comprised in the thermosetting resin, wherein the conductive particles have a thermoplastic resin nucleus coated with a conductive substance and the conductive fibers have a thermoplastic resin core coated with a conductive substance. 2. A prepreg according to claim 1, wherein G1c of the thermoplastic resin is 1500 to 50000 J/m2. 3. A prepreg according to claim 1, wherein the conductive particles or fibers having a thermoplastic resin nucleus or core that is coated with a conductive substance have an average diameter of 1 to 150 μm. 4. A prepreg according to claim 1, wherein the conductive substance has a volume resistivity of 10 to 10−9 Ωcm. 5. A prepreg according to claim 1, wherein 90 to 100 wt % of each of the conductive particles or fibers having a thermoplastic resin nucleus or core that is coated with a conductive substance is localized to be within a 20% depth range from both surfaces of the prepreg in a thickness direction. 6. A prepreg according to claim 1, wherein 90 to 100 wt % of each of the conductive particles or fibers having a thermoplastic resin nucleus or core that is coated with a conductive substance is localized to be within a 20% depth range from one surface of the prepreg in a thickness direction. 7. A prepreg according to claim 1, wherein a total weight of the conductive particles or fibers having a thermoplastic resin nucleus or core that is coated with a conductive substance is 1 to 20 wt % with respect to the prepreg. 8. A prepreg according to claim 1, wherein the conductive particles or fibers having a thermoplastic resin nucleus or core that is coated with a conductive substance have a specific gravity of 0.8 to 3.2. 9. A prepreg according to claim 1, wherein the conductive particles or fibers having a thermoplastic resin nucleus or core that is coated with a conductive substance are subjected to a surface treatment. 10. A prepreg according to claim 9, wherein the surface treatment is at least one type selected from the group consisting of a coupling treatment, an oxidation treatment, an ozonation treatment, a plasma treatment, a corona treatment and a blast treatment. 11. A prepreg according to claim 10, wherein the coupling treatment is a silane coupling treatment. 12. A prepreg according to claim 10, wherein the oxidation treatment is a chemical liquid oxidation treatment. 13. A prepreg according to claim 1, wherein the carbon fiber has a tensile modulus of 260 to 400 GPa. 14. A carbon fiber reinforced composite material produced by curing the prepreg according to any one of claims 1 to 13.