Asymmetry composite material

Patent metadata

Field	Value
Publication number	US-11718073-B2
Application number	US-201917261601-A
Country	US
Kind code	B2
Filing date	Aug 6, 2019
Priority date	Aug 6, 2018
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

The present application relates to an asymmetry composite material and a method for preparing the same, which provides a composite material comprising a metal porous body (metal foam or the like) and a polymer component, and provides a method for preparing a composite material, wherein the polymer component is formed in an asymmetrical structure on both sides of the metal porous body (metal foam or the like), and a composite material prepared in such a manner.

First claim

What is claimed is:

1. An asymmetry composite material, comprising:
a first polymer layer,
a metal porous body, and
a second polymer layer,
wherein the first polymer layer, the metal porous body and the second polymer layer are sequentially stacked, wherein the first polymer layer and the second polymer layer comprise different components, wherein the first polymer layer penetrates into pores of a first surface of the metal porous body, wherein the second polymer layer penetrates into pores of a second surface of the metal porous body, wherein a first region formed by a first polymer component of the first polymer layer penetrating into the pores and a second region formed by the second polymer layer penetrating into the pores are present inside of the metal porous body, wherein only the first region and the second region are present inside of the metal porous body, and wherein a thickness of the first region is in a range of 0.05 to 0.95 times a thickness of the metal porous body.

2. The asymmetry composite material according to claim 1 , wherein the metal porous body is in the form of a film having a thickness in a range of 5 μm to 5 cm.

3. The asymmetry composite material according to claim 1 , wherein the metal porous body comprises one or more metals or metal alloys selected from the group consisting of iron, cobalt, nickel, copper, phosphorus, molybdenum, zinc, manganese, chromium, indium, tin, silver, platinum, gold, aluminum, stainless steel and magnesium.

4. The asymmetry composite material according to claim 1 , wherein the metal porous body is a metal foam.

5. The asymmetry composite material according to claim 1 , wherein the metal porous body has a porosity in a range of 30% to 85%.

6. The asymmetry composite material according to claim 1 , wherein the thickness of the first region is in a range of 0.08 to 0.9 times the thickness of the metal porous body.

7. An asymmetry composite material, comprising:
a first polymer layer,
a metal porous body, and
a second polymer layer,
wherein the first polymer layer, the metal porous body and the second polymer layer are sequentially stacked, wherein the first polymer layer and the second polymer layer comprise different components, wherein the first polymer layer penetrates into pores of a first surface of the metal porous body, wherein the second polymer layer penetrates into pores of a second surface of the metal porous body, and wherein the second polymer layer is an electrical insulation layer having a surface resistance measured according to JIS K 7194 standard in a range of 1000Ω/□ or more.

8. The asymmetry composite material according to claim 1 , wherein the first polymer layer has a peel force to a copper metal plate of 0.1 to 100 g/mm when a peel rate is 0.3 m/min, and a peel angle is 180°, and the second polymer layer has a peel force to a copper metal plate of 10 to 1000 g/mm when a peel rate is 0.3 m/min, and a peel angle is 180°.

9. The asymmetry composite material according to claim 1 , wherein the first polymer layer has a tensile elastic modulus at 25° C. in a range of 0.01 MPa to 10 MPa, and the second polymer layer has a tensile elastic modulus at 25° C. in a range of 100 MPa to 1000 MPa.

10. The asymmetry composite material according to claim 1 , wherein the first polymer layer or the second polymer layer comprises a resin component.

11. The asymmetry composite material according to claim 1 , wherein the first polymer layer or the second polymer layer further comprises inorganic particles.

12. The asymmetry composite material according to claim 7 , wherein the first polymer layer is an electrically conductive layer having a surface resistance measured according to JIS K 7194 standard in a range of 10Ω/□ or less.

Assignees

• Lg Chemical Ltd

Inventors

• Shin Jong Min
• Yoo Dong Woo
• Lee Jin Kyu

Classifications

• B32B27/065 Primary

  of foam · CPC title

• B32B5/18

  characterised by features of a layer {of} foamed material · CPC title

• B32B27/36

  comprising polyesters · CPC title

• B32B2255/062

  metal layer being a foamed layer · CPC title

• B32B2255/26

  Polymeric coating · CPC title