Composite of metal and carbon-fiber-reinforced plastic and method for manufacturing composite of metal and carbon-fiber-reinforced plastic

A method for manufacturing a composite of metal and carbon-fiber-reinforced plastic comprising

• coating a surface of a predetermined metal member with a treatment solution which contains a predetermined resin material and inorganic filler having a thermal conductivity of 20 W/(m·K) or more and which has a viscosity at 20 to 40° C. of 1 to 30 Pa·S,
• placing a carbon fiber reinforced plastic prepreg which contains a predetermined matrix resin and carbon reinforcing fiber present in said matrix resin on said metal member after being coated with said treatment solution, said carbon reinforcing fiber being at least one of pitch-based carbon reinforcing fiber having a thermal conductivity of 180 to 900 W/(m·K) in range or PAN-based carbon reinforcing fiber having a thermal conductivity of 100 to 200 W/(m·K) in range, to obtain a stacked assembly,
• performing a first hot pressing step of applying to said stacked assembly 0.5 to 2.0 MPa in pressure at a predetermined range of treatment temperature for 30 to 60 minutes,
• performing a second hot pressing step of applying to said stacked assembly after said first hot pressing step 0.5 to 2.0 MPa in pressure at a predetermined range of treatment temperature for 30 to 120 minutes, and
• making a content of said inorganic filler in said treatment solution 10 to 45 vol % in range with respect to a total volume of said treatment solution,
• a treatment temperature of said first hot pressing step being (Tg-80) to (Tg-50)° C. in range in the case where said resin material in said treatment solution is a noncrystalline thermosetting resin, where Tg [° C.] is a glass transition temperature of the resin after curing, and being (Tm) to (Tm+20)° C. in range in the case where said resin material in said treatment solution is a crystalline thermosetting resin, where Tm [° C.] is a melting point of said crystalline resin,
• a treatment temperature of said second hot pressing step being (Tg-20) to (Tg+50)° C. in range in the case where said resin material in said treatment solution is a noncrystalline thermosetting resin and being and being (Tm+25) to (Tm+50)° C. in range in the case where said resin material in said treatment solution is a crystalline thermosetting resin.

A method for manufacturing a composite of metal and carbon-fiber-reinforced plastic comprising

• coating a surface of a predetermined metal member with a resin sheet or a treatment solution which has a viscosity at 20 to 40° C. of 1 to 30 Pa·S, said resin sheet or said treatment solution contains a predetermined resin material and an inorganic filler having a thermal conductivity of 20 W/(m·K) or more,
• placing a carbon fiber reinforced plastic prepreg which contains a predetermined matrix resin and carbon reinforcing fiber present in said matrix resin on said metal member after placing said resin sheet or said treatment solution, said carbon reinforcing fiber being at least one of pitch-based carbon reinforcing fiber having a thermal conductivity of 180 to 900 W/(m·K) in range or PAN-based carbon reinforcing fiber having a thermal conductivity of 100 to 200 W/(m·K) in range, to obtain a stacked assembly,
• performing a first hot pressing step of applying to said stacked assembly 0.5 to 2.0 MPa in pressure at a predetermined range of treatment temperature for 30 to 60 minutes,
• performing a second hot pressing step of applying to said stacked assembly after said first hot pressing step 0.5 to 2.0 MPa in pressure at a predetermined range of treatment temperature for 30 to 120 minutes, and
• making a content of said inorganic filler in said resin sheet or said treatment solution 10 to 45 vol % in range with respect to a total volume of said resin sheet or said treatment solution,
• a treatment temperature of said first hot pressing step being a temperature lower than a decomposition temperature and (Tg+100) to (Tg+200)° C. in temperature range in the case where said resin material in said resin sheet or in said treatment solution is a noncrystalline thermoplastic resin, where Tg [° C.] is a glass transition temperature of said resin material, and being a temperature lower than a decomposition temperature and (Tm) to (Tm+50)° C. in temperature range in the case where said resin material in said resin sheet or in said treatment solution is a crystalline thermoplastic resin, where Tm [° C.] is a melting point of said crystalline thermoplastic resin,
• a treatment temperature of said second hot pressing step being Tg to (Tg+150)° C. in range in the case where said resin material in said resin sheet or in said treatment solution is a noncrystalline thermoplastic resin and Tm to (Tm+20)° C. in range in the case where said resin material in said treatment solution is a crystalline thermoplastic resin and being a temperature lower than a decomposition temperature, where Tm [° C.] is a melting point of said crystalline thermoplastic resin.