Composite materials, methods for manufacturing the same, and plated products

JP2026098521APending Publication Date: 2026-06-17TOKYO METROPOLITAN IND TECH RES INST
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TOKYO METROPOLITAN IND TECH RES INST
Filing Date
2024-12-05
Publication Date
2026-06-17

Smart Images

  • Figure 2026098521000004
    Figure 2026098521000004
  • Figure 2026098521000005
    Figure 2026098521000005
  • Figure 2026098521000006
    Figure 2026098521000006
Patent Text Reader

Abstract

To provide a composite material that can form a metal film with excellent adhesion to the surface of fiber-reinforced plastic through plating treatment. [Solution] A composite material comprising a coating layer on the surface of a fiber-reinforced plastic, wherein the coating layer is a cured product of a coating agent containing a base resin and a curing agent, the curing agent being a compound that reacts with the functional groups of the base resin to form carboxyl groups or hydroxyl groups, and at least one of the carboxyl groups or hydroxyl groups derived from the curing agent is exposed on the surface of the coating layer.
Need to check novelty before this filing date? Find Prior Art

Claims

1. A composite material having a coating layer on the surface of a fiber-reinforced plastic, The aforementioned coating layer is a cured product of a coating agent containing a base resin and a curing agent. The curing agent is a compound that reacts with the functional groups of the base resin to form carboxyl groups or hydroxyl groups. At least one of the carboxyl groups or hydroxyl groups derived from the curing agent is exposed on the surface of the coating layer. Composite material.

2. The base resin is an epoxy resin, and the functional group is an epoxy group. The composite material according to claim 1.

3. The curing agent is an acid anhydride compound. The composite material according to claim 1.

4. The curing agent has two or more carboxyl groups or hydroxyl groups formed by reaction with the functional group. The composite material according to claim 1.

5. The coating layer contains an inorganic filler that dissolves in an acid or alkali. The composite material according to claim 1.

6. The average particle size of the inorganic filler is 0.5 to 5.0 μm. The composite material according to claim 5.

7. Pores with an average diameter of 0.5 to 5.0 μm are formed on the surface of the coating layer. The composite material according to claim 1.

8. A metal film is formed on the surface of the coating layer of the composite material according to claim 1. Plated products.

9. A method for manufacturing a composite material according to claim 1, The process includes a first step of forming a coating layer on the surface of a fiber-reinforced plastic, which is a cured product of a coating agent containing a base resin and a curing agent. The curing agent is a compound that reacts with the functional groups of the base resin to form carboxyl groups or hydroxyl groups. A method for manufacturing composite materials.

10. The coating agent comprises an inorganic filler that dissolves in an acid or alkali. The process includes a second step of polishing the surface of the coating layer, then etching it with an acid or alkali to dissolve the inorganic filler in the coating layer and form pores on the surface of the coating layer. A method for producing the composite material according to claim 9.

11. The inorganic filler content in the coating agent is 18% by mass or more. A method for producing the composite material according to claim 10.

12. The average diameter of the pores is 0.5 to 5.0 μm. A method for producing the composite material according to claim 10.