Composite material

Patent metadata

Field	Value
Publication number	US-11046058-B2
Application number	US-201515746868-A
Country	US
Kind code	B2
Filing date	Aug 18, 2015
Priority date	Aug 18, 2015
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

Examples of the present disclosure present a composite material. In an example, the composite material may comprise: a carbon fiber composite and a surface treatment layer. The carbon fiber composite may comprise a core layer having a first side and a second side opposite to the first side, and a first set of two carbon fiber layers disposed over at least a portion of the core layer respectively on the first side and the second side. Each of the first set of the two carbon fiber layers may comprise carbon fibers aligned in a first direction in a plane. The surface treatment layer may be disposed on the carbon fiber composite.

First claim

What is claimed is:

1. A composite material, comprising:
a carbon fiber composite comprising a core layer having a first side and a second side opposite to the first side, and a first set of two carbon fiber layers disposed over at least a portion of the core layer respectively on the first side and the second side, wherein each of the first set of the two carbon fiber layers comprises carbon fibers aligned in a first direction in a plane; and
a surface treatment layer, disposed on the carbon fiber composite, wherein the surface treatment layer is a metallic luster hybrid coating including a sol-gel precursor, a metal powder, and a material with thermal resistance.

2. The composite material according to claim 1 , wherein the material with thermal resistance is selected from a group consisting of a thermoset resins and a thermoplastic resin;
wherein the sol-gel precursor is selected from a group comprising consisting of tetraethylorthosilicate, glycidoxypropyltriethoxysilane, 3-aminopropyltriethoxysilane, methacryloxypropyltrimethoxysilane, vinyltrimethylsiloxane, diphenyldimethoxysilane, zirconiumisopropoxide, metal alkoxides, and a mixture thereof;
wherein the thermoset resin and thermoplastic resin are selected from a group consisting of polyacrylate, celluloid, polyethylene, polypropylene, polyvinyl chloride, chlorinated polyvinyl chloride, polystyrene, epoxy, acrylonitrile butadiene styrene, polycarbonate, polyurethane, polybutylene, poly vinylidene fluoride, fluoro-polymers, nylon, polytetrafluoroethylene, polyacetylenes, polypyrrol, polythiophene, polyfuran, poly(p-poly)dialkylfluorene, and a mixture thereof, and
wherein the powder is selected from the group consisting of silver, aluminum, copper, titanium, brass, bronze, stainless, nickel, chromium, zinc, pearl, tin, gold, tungsten, platinum, metal alloys, and a mixture thereof.

3. The composite material according to claim 1 , further comprising:
a primer layer disposed between the metallic luster hybrid coating and the carbon fiber composite.

4. The composite material according to claim 1 , wherein the carbon fiber composite further comprises:
a second set of two carbon fiber layers, disposed over at least a portion of the first set of two layers respectively on the first side and the second side, each carbon fiber layer of the second set comprising carbon fibers aligned in a second direction perpendicular to the first direction in the plane; and
wherein the carbon fiber composite in the plane has a length and a width, and the length is larger than the width and parallel to the second direction.

5. The composite material according to claim 4 , wherein the carbon fiber composite further comprises:
a third set of two carbon fiber layers disposed between the carbon fiber layers of the first set and the second set respectively on the first side and the second side, each carbon fiber layer of the third set comprising carbon fibers aligned in the first direction.

6. A method of manufacturing the composite material of claim 1 , comprising:
forming the carbon fiber composite comprising the core layer and the first set of two carbon fiber layers; wherein the core layer has the first side and the second side opposite to the first side, and the first set of the two carbon fiber layers are disposed over at least a portion of the core layer respectively on the first side and the second side, each of the first set of the two carbon fiber layers comprises carbon fibers aligned in the first direction in a plane; and
forming the surface treatment layer in the form of the metallic luster hybrid coating on the carbon fiber composite, to provide a metallic surface for the carbon fiber composite.

7. The composite material according to claim 1 , further comprising:
a primer coating and a base coating, sequentially disposed between the metallic luster hybrid coating and the carbon fiber composite.

8. The method according to claim 6 , wherein forming the surface treatment layer on the carbon fiber composite comprises: adopting a spray coating process or a dipping coating process to generate the metallic luster hybrid coating for the carbon fiber composite.

9. A housing of an electronic device, comprising:
a composite material comprising:
a carbon fiber composite comprising a core layer having a first side and a second side opposite to the first side, and two unidirectional carbon fiber layers disposed over at least a portion of the core layer respectively on the first side and the second side, wherein each of the two unidirectional carbon fiber layers comprises carbon fibers aligned in a first direction in a plane; and
a surface treatment layer disposed on the carbon fiber composite, wherein the surface treatment layer is a metallic luster hybrid coating including a sol-gel precursor, a metal powder, and a material with thermal resistance.

10. The housing according to claim 9 , wherein the electronic device is a portable or mobile electronic device.

Assignees

• Hewlett Packard Development Co

Inventors

• Wu Kuan-Ting
• Liao Cheng-Feng
• Chen Wei-Chung
• Ku Chung-Hua

Classifications

• B32B2260/046

  Synthetic resin · CPC title

• B32B27/08 Primary

  of synthetic resin · CPC title

• B32B2262/101

  Glass fibres · CPC title

• B32B2255/02

  on fibrous or filamentary layer · CPC title

• C09D5/38

  Paints containing free metal not provided for above in groups C09D5/00 - C09D5/36 · CPC title