Resin member and method for producing resin member
AssigneeDenso Corporation
InventorsAkihumi Kurita, Masato Ichikawa, Tsuyoshi Arai, Takeshi Kusano, Masashi Mori
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Abstract
A resin member is formed from a resin material containing filler and an insulating base polymer as a main component. The resin member includes an alignment layer close to a surface of the resin member. The alignment layer includes the filler aligned in the surface direction and the base polymer filling the space between pieces of the filler. The alignment layer includes a carbonized portion that is carbonized matter of the base polymer, contains graphite, and provides electrical conductivity and thermal conductivity.
Claims15
A resin member formed from a resin material containing filler and an insulating base polymer as a main component, the resin member comprising
- an alignment layer close to a surface of the resin member, the alignment layer including the filler aligned in a surface direction parallel to the surface and the base polymer filling a space between pieces of the filler,
- wherein
- the alignment layer includes a carbonized portion being carbonized matter of the base polymer, containing graphite, and providing electrical conductivity and thermal conductivity.
A method for producing a resin member formed from a resin material containing filler and an insulating base polymer as a main component, the method comprising:
- a molding step of melting the resin material, applying shear stress to molten resin corresponding to an area close to a surface of the resin member, and solidifying the resin material to form, close to the surface, an alignment layer including the filler aligned in a surface direction parallel to the surface and the base polymer filling a space between pieces of the filler;
- and
- a carbonization step of heat-treating the alignment layer in a localized manner to carbonize the base polymer included in the alignment layer and generate a carbonized portion including graphite and providing electrical conductivity and thermal conductivity.
Dependencies are inferred from the claim text.