Surface Functional Composite Film and Method of Fabricating the Same

• US 20160354802A1
• Filed: 06/02/2016
• Published: 12/08/2016
• Est. Priority Date: 06/02/2015
• Status: Active Grant

• Current Assignee: Yonsei University
• Original Assignee: University-Industry Foundation Yonsei University
• Inventors: Lee, Yoon Kwang, Park, Hyung-Ho
• Granted Patent: US 10,642,154 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B05D 3/067 Curing or cross-linking the coating
• CPC Class Codes: B32B 5/145 Variation across the thickness of the layer
• CPC Class Codes: G03F 7/0043 Chalcogenides; Silicon, germanium, arsenic or derivatives thereof; Metals, oxides or alloys thereof G03F7/0044 takes precedence
• CPC Class Codes: G03F 7/027 Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds G03F7/075 takes precedence
• CPC Class Codes: G03F 7/095 having more than one photosensitive layer G03F7/075 takes precedence

Abstract

Provided are embodiments related to a surface functional composite coating film and a method of fabricating the same. The surface functional composite coating film may include a resin coating layer; a surface functional metal compound layer formed on the resin coating layer; and an interface layer having gradually changing composition distribution of a metal constituting the metal compound between the resin coating layer and the surface functional metal compound layer.

Claims

1. A method of fabricating a surface functional composite coating film, the method comprising:

a first step for forming a solution comprising a surface functional resin coating film forming precursor;

a second step for forming a composite coating sol by stirring a photochemical organic metal precursor in the solution formed in the first step;

a third step for applying the composite coating sol formed in the second step onto a substrate;

a fourth step for drying the composite coating sol applied onto the substrate in the third step; and

a fifth step for forming the surface functional composite coating film having a double-layer stacked structure by exposing the composite coating sol dried in the fourth step to UV rays.

2. The method of claim 1, wherein, in the fifth step, a step in which a resin coating film cured by UV rays irradiated thereto is formed and a step in which a metal-containing compound is formed through a photo reaction of the photochemical organic metal precursor are sequentially performed.

3. A method of fabricating a surface functional composite coating film, the method comprising:

a first step for providing a resin coating film forming precursor curable through a photo coupling reaction based on an UV irradiation;

a second step for providing a photochemical organic metal precursor that is capable of forming a metal-containing compound through a photo reaction based on the UV irradiation and exhibits a photo reaction speed slower than the curing speed of the resin coating film forming precursor through the optical coupling reaction;

a third step for forming a coating solution comprising a composite coating precursor including a mixture of the resin coating film forming precursor and the photochemical organic metal precursor;

a fourth step for forming a composite coating layer comprising the composite coating precursor; and

a fifth step for forming the surface functional composite coating film having a double-layer stacked structure by exposing the composite coating layer to UV rays.

4. The method of claim 3, wherein the double-layer stacked structure comprises the resin coating layer on the substrate and the surface functional metal compound layer on the resin coating layer.

5. The method of claim 3, further comprising adding a photo-initiator to the coating solution.

6. The method of claim 3, wherein the resin coating film forming precursor comprises at least one of an olygomer and a monomer that are able to be photo coupled,

wherein the olygomer comprises an acrylate-based olygomer, an urethane-based olygomer, a polycarbonate-based olygomer, or a mixture thereof, and

wherein the monomer comprises an acryl-based photo crosslinkable crosslinkable monomer, a derivative thereof, or a combination thereof.

7. The method of claim 3, wherein the photochemical organic metal precursor comprises a compound that includes metal central atoms of one or more type and a ligand including at least one of oxygen, nitrogen, and carbon.

8. The method of claim 7, wherein the ligand comprises at least one of substituted acetylacetonate, unsubstituted acetylacetonate, dialkyl dithiocarbamate, carboxylate, pyridine, amine, diamine, arsine, diarsine, phosphine, diphosphine, arene, alkoxy ligand, acetyl acetonate substituted with alkyl ligand or aryl ligand, unsubstituted acetylacetonate, dialkyl dithiocarbamate, carboxylate, pyridine, amine, diamine, arsine, diarsine, phosphine, diphosphine, arene, alkoxy ligands, alkyl ligands, and aryl ligands or a mixture thereof;

or

wherein the ligand comprises oxalato, halogen, hydrogen, hydroxy, cyano, carbonyl, nitro, nitrito, nitrate, nitrosyl, ethylene, acetylene, thiocyanato, isothiocyanato, aquo, azid, carbonato, amine, or thio-carbonyl.

9. The method of claim 8, wherein the photochemical organic metal precursor generates metal ions through an UV irradiation.

10. The method of claim 3, wherein a solvent for forming the coating solution comprises a carbonate-based solvent, an ether-based solvent, a ketone-based solvent, an alcohol-based solvent, or a mixture thereof.

11. The method of claim 3, wherein the coating solution comprises at least one of a coupling agent, a viscosity control agent, a pigment, and a surfactant.

12. A surface functional composite coating film comprising:

a resin coating layer;

a surface functional metal compound layer formed on the resin coating layer; and

an interface layer having gradually changing composition distribution of a metal constituting the meta compound between the resin coating layer and the surface functional metal compound layer.

13. The surface functional composite coating film of claim 12, wherein the resin coating layer comprises a layer cured through an photo coupling reaction based on an UV irradiation.

14. The surface functional composite coating film of claim 12, wherein the resin coating layer is an organic/inorganic coating layer, the organic/inorganic coating layer comprising inorganic particles dispersed in a resin-based matrix or coupled with the resin-based matrix.

15. The surface functional composite coating film of claim 12, wherein the surface functional metal compound layer comprises a metal oxide, a metal nitride, a metal carbide, or a mixture thereof.

16. The surface functional composite coating film of claim 12, wherein the surface functional metal compound layer is a 2-dimensional film structure, a planar pattern, or a 3-dimensional object.

17. The surface functional composite coating film of claim 12, wherein the surface functional composite coating film is a mechanical, physical, or chemical surface protecting layer, an anti-contamination layer, an anti-fingerprint layer, a glossy layer, a light diffusing layer, a light screening layer, an anti-static charge layer, a screening layer, or a semiconductor layer.