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US 12,410,055 B2Granted
Method for water-repellent treatment of boron nitride powder and water-repellent-treated boron nitride
AssigneeKorea Institute of Fusion Energy
InventorsYong Ho Jung, Seung Ryul Yoo, Dong Chan Seok
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Abstract
A method for water-repellent coating treatment of a boron nitride powders and water-repellent treated boron nitride are disclosed. The method includes producing a water-repellent coating layer on the surface of the boron nitride powders by plasma treatment using a silicon-containing organic compound containing silicone, wherein the water-repellent coating layer remains on the boron nitride through chemical binding with the boron nitride even after ultrasonic water washing.
Claims8
A method for water-repellent treatment of boron nitride powders, the method comprising the steps of:
- performing plasma treatment on the boron nitride powders by injecting a vaporized silicon-containing organic compound into a plasma generated region using a dielectric barrier discharge plasma apparatus;
- wherein the injection of the vaporized silicon-containing organic compound includes passing a solution of the silicon-containing organic compound through a bubbler, and injecting the vaporized silicon-containing organic compound and a carrier gas into the plasma generated region;
- wherein the plasma includes plasma formed from the silicon-containing organic compound;
- wherein performing the plasma treatment includes forming a water-repellent coating layer on surfaces of the boron nitride powders;
- wherein the silicon-containing organic compound includes hexamethyldisiloxane, tetraethoxysilane (TEOS) or trimethylchlorosilane (TMCS);
- wherein the water-repellent coating layer contains silicon, carbon and oxygen;
- and
- wherein the water-repellent coating layer chemically bonds to the boron nitride.
5 more elements
Dependencies are inferred from the claim text.