Woo-Chang Song

Bio: Woo-Chang Song is an academic researcher. The author has contributed to research in topics: Coating & Layer (electronics). The author has an hindex of 2, co-authored 2 publications receiving 154 citations.

Inorganic pigments composition having high hardness

Abstract: Disclosed is a high-hardness inorganic coating composition which is capable of forming a coating film having high hardness, antibacterial activity, water resistance, chemical resistance and non-flammability, and exhibiting superior adhesion to a substrate, on a metal or non-metal surface. The present invention provides the high-hardness inorganic coating composition which is prepared by mixing a binder and an inorganic filler in water.

Method for forming an inorganic coated layer having high hardness

Abstract: Provided is a method for forming a high-hardness inorganic coating layer, which is capable of providing a coating layer having abrasion resistance, chemical resistance, contamination resistance, high hardness and non-flammability on a surface of a metal or non-ferrous metal substrate at room temperature. The method comprises cleaning a substrate surface to remove impurities; subjecting a substrate surface to ultrasonic cleaning; preparing a high-hardness inorganic coating composition; coating the substrate surface with the high-hardness inorganic coating composition to form a high-hardness coating layer; drying the high-hardness coating layer; and heating the substrate at a temperature of 250 to 27O0C to cure the high-hardness coating layer.

Anti-corrosive coating composition

Abstract: The invention relates to a low temperature-curable coating composition comprising a film-forming resin, a curing agent for the film-forming resin, and a lithium salt.

Acid-resistant and alkali-resistant waterborne damping coating with wide temperature range and high damping capacity and method for preparing same

Abstract: The invention discloses an acid-resistant and alkali-resistant waterborne damping coating with a wide temperature range and high damping capacity, comprising, by weight, 30-65 parts of a waterborne emulsion, 15-45 parts of a filler, 10-35 parts of a flame retardant, 0.1-2 parts of fibers, 0-5 parts of a film-forming agent, 0.1-1.5 parts of a dispersing agent, 0.1-1.5 parts of a defoaming agent, 0-4 parts of an antifreeze agent, 0.2-3 parts of a thickening agent and 1-8 parts of a multifunctional aid. The acid-resistant and alkali-resistant waterborne damping coating with wide temperature region and high damping capacity has the advantages that the acid-resistant and alkali-resistant waterborne damping coating is high in damping performance, wide in damping temperature range and excellent in acid resistance and alkali resistance; loss factors of materials in the temperature range ranges from -30 DEG C to 50 DEG C reach 72 hours as shown by acid-resistant and alkali-resistant tests on the materials by the aid of 10% NaOH solution and 10% H2SO4 solution, and the acid-resistant and alkali-resistant waterborne damping coating is free of foaming, softening and sticking and excellent in acid resistance and alkali resistance.

Abrasion-resistant coating material for repairing abrasion of slurry pump

Abstract: The invention discloses an abrasion-resistant coating material for repairing abrasion of a slurry pump. The material comprises a primary agent and a curing agent, wherein the primary agent comprises 15-60 parts of epoxy resin, 0-5 parts of a coupling agent, 0-20 parts of flexibilizer, 0-600 parts of a grinding material, 0-60 parts of fibers, 0-80 parts of resin alloy polyphenyl ether, 0-30 parts of an antifriction material, 0-20 parts of an thixotropic agent, namely fumed silica, and 0-50 parts of pigment; the curing agent comprises 5-50 parts of organic amine substances, 3-20 parts of a coupling agent, 0.5-18 parts of accelerant, 0-300 parts of a grinding material, 0-10 parts of an thixotropic agent, namely fumed silica and 0-15 parts of pigment. In the actual application process of the coating material for repairing the slurry pump, the service life after repair is conducted can reach 1.5-2 times that of a new workpiece, for the working condition with large material particles repaired, the service life can even reach four times at times, and repeated repair can be conducted.

Multifunctional inorganic interior wall coating and preparation method thereof

Abstract: The invention relates to a multifunctional inorganic interior wall coating and a preparation method thereof. The coating comprises the following components in percentage by weight: 5-15 percent of potassium silicate, 2-5 percent of lithium silicate, 5-20 percent of silica sol, 5-15 percent of diatomite, 5-10 percent of shell powder, 5-15 percent of photosensitive auxiliary-supported tourmaline, 5-15 percent of radiation-resistant-bactericidal auxiliary-supported bentonite, 1-10 percent of nano SiO2 dispersing liquid, 2-8 percent of calcined kaolin, 3-12 percent of anatase titanium dioxide, 2-8 percent of alumina powder and 10-25 percent of water; the total percentage by weight of all the components is 100 percent. The preparation method provided by the invention is simple; the obtained interior wall coating has the advantages of being non-toxic, odorless, green and environment-friendly, radiation-resistant, bactericidal and bacteriostatic, capable of eliminating formaldehyde and other organic pollutants, self-clean, capable of purifying air, releasing negative oxygen ions and regulating the humidity, fire-proof and flame-retardant, high temperature-resistant, water-resistant, scrubbing-resistant, aging-resistant, powdering-resistant and corrosion-resistant, thereby having wide market prospect.

Zinc-nickel alloy coating and zinc coating nano modified sealant, and preparation and application methods thereof

Abstract: The invention discloses a zinc-nickel alloy coating and a zinc coating nano modified sealant, and preparation and application methods thereof. The sealant comprises water-soluble polyurethane, a water-soluble silane polymer, a nano polytetrafluoroethylene emulsion, a nano silicon dioxide sol, a wetting agent, an accelerator and deionized water. The wetting agent is one or two of polyether modified alkyl copolymers or sodium 2-ethylhexyl sulfovinate, and the accelerator is one or two of ethanediol and 1,3-propanediol. The nano polytetrafluoroethylene is utilized to enhance the self-lubricating property of the sealing layer, and the nano silicon dioxide is utilized to enhance the hardness of the sealing layer, thereby obviously enhancing the lubricating property and wear resistance of the zinc-nickel alloy and zinc coating.