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Inorganic paint composition, and method for forming inorganic paint film by using same

By using an inorganic coating composition containing alkali metal silicate, phosphoric acid and strong alkali, combined with preheating, coating and plastic treatment, the problems of environmental pollution and poor adhesion of organic coatings are solved, and the high resistance of the inorganic coating film is achieved. Thermal and corrosion resistance, and the inorganic coating is easy to clean, the corrosion resistance is significantly improved, environmentally friendly and has a long life.

Active Publication Date: 2015-07-22
金 孝源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water-soluble modified silicate used as a binder in this coating composition is a strong alkaline substance, so after the coating film is formed, a small amount of alkaline components dissolve to the surface of the coating film to cause whitening.
[0007] In addition, people have also studied the hydrophilic inorganic coating composition with alkali metal oxide and alkali silicate as curing agent, metal oxide, metal phosphate and alkali silicate as base (base), here Not only does not completely prevent the whitening phenomenon caused by alkali dissolution, but also the water resistance to water is not complete enough, and the adhesion or adhesion to the parent material still needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0128] The preparation method of the first composition and the second composition and the method of mixing them to prepare the final inorganic coating composition may be mixing and stirring in the same manner as the method described above.

[0129] As mentioned above, when the inorganic coating composition of the present invention is prepared and maintained at a pH of 8-14, ideal reaction efficiency can be obtained, so that the composition maintains an optimal solution state.

[0130] After preparing the inorganic coating composition through step b), the step of preheating the coating-coated parent material at a certain temperature.

[0131] This is a step of preheating the parent material to a certain temperature, which can be preheated at a temperature of 50±10° C., so that the inorganic coating composition can be effectively coated on the surface of the parent material.

[0132] The parent materials used in the present invention can be metal and non-metal materials, other p...

preparation example

[0161] The composition ratios of the inorganic coating compositions (Preparation Example 1 to Preparation Example 5) prepared by mixing and stirring the constituent materials of the present invention are shown in Table 1, and the inorganic coating compositions were divided into two types to prepare the inorganic coating compositions. The composition ratios of (Preparation Example 6 to Preparation Example 8) are shown in Table 2. At this time, sodium silicate hydrate (Na 2 OySiO 2 nH 2 O) and potassium silicate hydrate (K 2 OySiO 2 nH 2 O) use the product of Oi Kakin Co., Ltd., lithium silicate hydrate (Li 2 OySiO 2 nH 2 O) A product of Youngil Chemical Co., Ltd. is used.

[0162] Table 1

[0163]

[0164] Table 2

[0165]

[0166] Using the inorganic coating composition of Preparation Example 1 to Preparation Example 8 prepared by the above method, it was coated on a stainless steel substrate by a dipping method, and plasticized at 250° C. for 2 hours to for...

Embodiment

[0259] Sodium silicate hydrate (Na 2 OyO 2 nH 2 O) and potassium silicate hydrate (K 2 OyO 2 nH 2 (0) 40 parts by weight, 5 parts by weight, use Youngil Chemical Co., Ltd. lithium silicate hydrate (Li 2 OyO 2 nH 2 O) 20 parts by weight, 0.25 parts by weight of phosphoric acid, 0.5 parts by weight of NaOH, 0.005 parts by weight of polyoxyethylene sorbitan monostearate as an additive, and 34.2 parts by weight of water were mixed and stirred to prepare an inorganic coating composition. After dip-coating on the surface of stainless steel (SUS), plasticize it with microwaves at a frequency of 2,450MHz for 5 minutes. Functional evaluation of this and the degree of surface coating ( Figure 8 ) and the contact angle of moisture on the inorganic coating film were measured ( Figure 9 ), shown in Table 5 and Figure 8 , Figure 9 .

[0260] Comparative example 1

[0261] The stainless steel that does not coat above-mentioned embodiment inorganic coating composition carries...

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Abstract

The present invention relates to an inorganic paint composition and a method for forming an inorganic coating film using the same. Provided is an inorganic paint composition comprising at least one among alkali metal silicate expressed by following chemical formula 1 to chemical formula 3; phosphoric acid (H3PO4); one or more strong bases selected from the group of KOH, NaOH, and LiOH; and water (H2O). (In the following chemical formula 1 to chemical formula 3, x and y is 0.01-500 respectively, n is 1-20 of natural number) [chemical formula 1] xNa2OySiO2nH2O [chemical formula 2] xK2OySiO2nH2O [chemical formula 3] xLi2OySiO2nH2O An inorganic coating film formed using the inorganic paint composition according to the present invention notably has a strong binding force to the surfaces of metal products or non-metal products regardless of the type of a parent material, and thus has superior adhesion or attachment force to the parent material, and organic contaminants or other contaminants can be easily removed even when using only water. The inorganic paint composition and the inorganic coating film formed using the same has superior qualities of weather resistance, durability, abrasion resistance, surface hardness, far infrared radiation, incombustibility, chemical resistance, corrosion resistance, and antimicrobial properties.

Description

technical field [0001] The present invention relates to an inorganic coating composition and a method for forming an inorganic coating film using the composition. Background technique [0002] In general, paints have a wide range of uses, and are used not only in various industrial fields such as railways, vehicles, ships, road facilities, electronics, and electrical appliances, but also in ordinary households such as kitchens and bedrooms. [0003] But existing organic coating has the problem of environmental pollution because of using organic solvents such as ethanol, when its surface is stained with organic matter (for example, various oils, spray paint, oily magic pen etc.) when being polluted, the surface of organic coating has hydrophobicity. Since it can bind organic substances well due to its nature, there is a problem that pollutants cannot be easily removed with water. [0004] In addition, the adhesion and adhesion of organic coatings to the non-ferrous metal sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/02C09D5/00B05D3/00
CPCC09D1/02C09D5/08B05D3/00B05D1/005B05D1/02B05D1/18B05D1/28B05D1/305C23C14/48C23C16/50
Owner 金 孝源