METAL-POLYMER COMPOSITE MATERIAL

• US 20180072907A1
• Filed: 03/25/2016
• Published: 03/15/2018
• Est. Priority Date: 03/26/2015
• Status: Active Grant

• Current Assignee: Centre National De La Recherche Scientifique, Universite De Haute Alsace
• Original Assignee: Centre National De La Recherche Scientifique, Universite De Haute Alsace
• Inventors: BALAN, Lavinia Maria
• Granted Patent: US 10,808,138 B2
• Time in Patent Office: Days
• CPC Class Codes: B05D 3/067 Curing or cross-linking the coating
• CPC Class Codes: B05D 5/063 Reflective effect B05D5/067 takes precedence
• CPC Class Codes: B05D 7/542 the two layers being cured or baked together
• CPC Class Codes: B32B 2250/02 2 layers
• CPC Class Codes: B32B 2255/10 on synthetic resin layer or on natural or synthetic rubber layer
• CPC Class Codes: B32B 2255/205 Metallic coating
• CPC Class Codes: B32B 2264/105 Metal
• CPC Class Codes: B32B 2307/202 Conductive
• CPC Class Codes: B32B 2307/302 Conductive
• CPC Class Codes: B32B 2307/416 Reflective
• CPC Class Codes: B32B 2457/00 Electrical equipment
• CPC Class Codes: B32B 27/12 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 27/16 specially treated, e.g. irradiated
• CPC Class Codes: B32B 27/18 characterised by the use of special additives
• CPC Class Codes: B32B 27/308 comprising acrylic (co)polymers
• CPC Class Codes: C08K 2003/0806 Silver
• CPC Class Codes: C08K 2003/0831 Gold
• CPC Class Codes: C08K 2003/085 Copper
• CPC Class Codes: C08K 2003/0893 Zinc
• CPC Class Codes: C08K 2201/001 Conductive additives
• CPC Class Codes: C08K 3/08 : Metals
• CPC Class Codes: C09D 11/101 : Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
• CPC Class Codes: C09D 11/107 : from unsaturated acids or derivatives thereof
• CPC Class Codes: C09D 11/322 : Pigment inks
• CPC Class Codes: C09D 11/52 : Electrically conductive inks
• CPC Class Codes: C09D 4/00 : Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
• CPC Class Codes: C09D 5/004 : Reflecting paints; Signal paints
• CPC Class Codes: C09D 5/24 : Electrically-conducting paints conductive materials H01B1/00
• CPC Class Codes: C09D 7/61 : inorganic
• CPC Class Codes: G03F 7/0047 : characterised by additives for obtaining a metallic or ceramic pattern, e.g. by firing
• CPC Class Codes: G03F 7/2004 : characterised by the use of a particular light source, e.g. fluorescent lamps or deep UV light
• CPC Class Codes: H01B 1/22 : the conductive material comprising metals or alloys

Abstract

The present invention relates to composite material comprising a matrix and a metallic layer located at at least one surface of said composite material, said matrix comprising at least one polymer and a first population of particles of at least one electronically conducting metal, said layer comprising a second population of particles of at least one electronically conducting metal, a method for preparing such composite material and applications thereof.

Claims

1. A composite material comprising a matrix and a metallic layer located at at least one surface of said composite material, said matrix comprising at least one polymer and a first population of particles of at least one electronically conducting metal, said layer comprising a second population of particles of at least one electronically conducting metal, the concentration of the particles of said second population in said layer being greater than the concentration of the particles of the first population in said matrix.

4. The composite material according to claim 1, wherein said layer of nanoparticles is at least partially embedded in the matrix, or wherein said layer of nanoparticles is totally embedded in the matrix, or wherein said layer of nanoparticles is on the matrix.

5. The composite material according to claim 1, wherein said first population of particles has a mean diameter of from 1 to 100 nanometers, for example from 5 to 50 nanometers,

6. The composite material according to claim 1, wherein said second population of particles forms a continuous metallic layer

7. The composite material according to claim 1, wherein said electronically conducting metal is selected from Ag, Au, Cu, Pd, Pt, Al, or any mixture thereof.

8. The composite material according to claim 1, wherein said polymer is a photo-induced polymer formed by the polymerization of at least one photopolymerizable monomer.

9. The composite material according to claim 1, wherein said composite material further comprises a substrate.

10. A method for preparing the composite material as defined in claim 1, said method comprising:

preparing a liquid composition comprising at least one precursor of at least one electronically conducting metal, at least one photopolymerizable monomer, and optionally at least one photo-initiator;

exposing the liquid composition obtained in the preparing step to UV radiations to photopolymerize said monomer to form a polymer matrix; and

forming particles of said conducting metal,

wherein said particles form at least two populations of particles,

wherein a first population of particles is dispersed in the polymer matrix, and

wherein a second population of particles forms a layer located at at least one surface of said composite material.

11. The method according to claim 10, further comprising depositing said liquid composition on a substrate.

12. The method according to claim 10, wherein said photopolymerization is performed in the presence of a UV source providing an intensity sufficient to induce the photopolymerization and the photoreduction of the electronically conducting metal precursor to form particles of electronically conducting metal, wherein the particles form at least two populations of particles as defined in claim 1.

13. The method according to claim 1, wherein said photopolymerization is performed in the presence of a UV source providing an intensity of at least 0.5 W/cm², on the liquid composition.

14. The method according to claim 10, wherein said photopolymerization is performed during a time sufficient to induce the photopolymerization and the photoreduction of the electronically conducting metal precursor to form particles of electronically conducting metal, wherein the particles form at least two populations of particles as defined in claim 1.

15. A substrate comprising at least one composite material as defined in claim 1.

16. The substrate according to claim 15, wherein said substrate is a textile, and wherein said composite material is embedded in an area of the textile substrate.

2. A composite material comprising a matrix and a metallic layer located at at least one surface of said composite material said matrix comprising at least one polymer and a first population of particles of at least one electronically conducting metal, said layer comprising a second population of particles of at least one electronically conducting metal, said layers located at at least one surface of said composite material being an electronically conducting layer.

17. A method for conducting heat or electricity wherein said method comprises contacting an electronically conducting surface of at least one composite material as defined in claim 2;

with heat or electricity and conducting heat or electricity, respectively, though said electronically conducting surface of said composite material.

18. A substrate comprising at least one composite material as defined in claim 2.

19. The substrate according to claim 18, wherein said substrate is a textile, and wherein said composite material is embedded in an area of the textile substrate.

3. A composite material comprising a matrix and a metallic layer located at at least one surface of said composite material said matrix comprising at least one polymer and a first population of particles of at least one electronically conducting metal, said layer comprising a second population of particles of at least one electronically conducting metal, said layers located at at least one surface of said composite material forming a metallic mirror surface.

20. A substrate comprising at least one composite material as defined in claim 3.

21. The substrate according to claim 20, wherein said substrate is a textile, and wherein said composite material is embedded in an area of the textile substrate.