Coating method of calcium carbonate film

Patent metadata

Field	Value
Publication number	US-10273162-B2
Application number	US-201514925637-A
Country	US
Kind code	B2
Filing date	Oct 28, 2015
Priority date	Mar 25, 2015
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

A method of coating a calcium carbonate film. In one aspect, the method includes preparing a calcium aqueous solution by adding a calcium-containing material to distilled water; forming a calcium carbonate film on a surface of the calcium aqueous solution by leaving the calcium aqueous solution; placing the calcium carbonate film on a substrate; and forming a calcium carbonate coating film by leaving the calcium carbonate film on the substrate.

First claim

What is claimed is:

1. A method of coating a calcium carbonate film, the method comprising:
preparing a calcium aqueous solution by adding Ca(OH) 2 to distilled water;
obtaining a liquid phase by centrifuging the calcium aqueous solution at 1,000 RPM for 1 minute after preparing the calcium aqueous solution;
forming a calcium carbonate film on a surface of the calcium aqueous solution by leaving the calcium aqueous solution;
placing the calcium carbonate film on a substrate; and
forming a calcium carbonate coating film by leaving the calcium carbonate film on the substrate,
wherein content of the calcium in the distilled water is in a range of 1 g to 500 g based on 1l of the distilled water,
the forming of the calcium carbonate film is performed in a temperature range of 0 to 95° C. and a pressure range of 0.1 atm to 2 atm,
the placing of the calcium carbonate film on the substrate is performed when 10 seconds to 10 minutes have elapsed from formation of the calcium carbonate film on the surface of the calcium aqueous solution for using an adsorptive power of an amorphous phase of the calcium carbonate film.

2. The method of claim 1 , wherein the calcium carbonate film has crystallinity in a range of 5% to less than 60%.

3. The method of claim 1 , wherein the placing of the calcium carbonate film on the substrate is performed when 10 seconds to 48 hours have elapsed from addition of the calcium to the distilled water.

4. The method of claim 1 , wherein the calcium carbonate film has an amorphous phase and the calcium carbonate coating film has a crystal phase.

5. The method of claim 1 , wherein the forming of the calcium carbonate coating film is performed for 30 minutes to 144 hours.

6. The method of claim 1 , wherein the forming of the calcium carbonate coating film is performed in a temperature range of 0 to 200° C.

7. The method of claim 1 , wherein the calcium carbonate coating film has crystallinity in a range of 60% to 99%.

8. The method of claim 1 , wherein the substrate includes one selected from the group consisting of glass, aluminum foil, plastic, quartz, Au, Li, Mg, Sr, Ba, Zn, Ag, Si, Ge, GaAs, InP, Al 2 O 3 , SiC, MgO, InSb, InAs, AIAs, AlSb, CdTe, ZnTe, ZnS, CdSe, CdSb, GaP, polydimethylsiloxane (PDMS), polyethyleneterephthalate (PET), polystyrene (PS), polyimide (PI), polyvinylchloride (PVC), polyvinylpyrrolidone (PVP), polypropylene (PP), polyurethane (PU) and polyethylene (PE).

9. The method of claim 1 , wherein the substrate having the calcium carbonate coating film is an adhesive-free substrate.

Assignees

• Korea Inst Geoscience & Mineral Resources

Inventors

• Lee Seung-Woo
• Chae Soo-Chun
• JEON Chi-Wan

Classifications

• B32B9/005

  comprising one layer of ceramic material, e.g. porcelain, ceramic tile (layered products with at least two ceramic layers composed mainly of ceramic B32B18/00) · CPC title

• C01F11/181 Primary

  Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions · CPC title

• H10F77/1694

  the films including Group I-III-VI materials, e.g. CIS or CIGS · CPC title

• H10F77/707

  of the substrates or of layers on substrates, e.g. textured ITO layer on a glass substrate · CPC title

• H10F77/211

  for photovoltaic cells · CPC title