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US 11,312,103 B2Granted
Composite thermal insulation sheet including aerogel
AssigneesLG Chem, Ltd., LG Electronics Inc.
InventorsKyoung Shil Oh, Je Kyun Lee, Byoung Wook Han, Yong Seog Jeon, Sang Woo Park, Joong Nyon Kim
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Abstract
Provided is a composite thermal insulation sheet including an aerogel and a method for manufacturing the same. The methods yield an ultra-thin aerogel composite sheet having characteristics of low dust, high strength and high thermal insulation, thereby having an increased applicability thereof to an electronic device.
Claims11
A composite thermal insulation sheet comprising:
- an aerogel sheet;
- a coating layer impermeable to a sol formed on one surface of the aerogel sheet;
- and
- one or more functional layers formed on the other surface of the aerogel sheet,
- wherein a thickness of the coating layer is from 30 μm or less, and
- wherein a thickness of the composite thermal insulation sheet is 3 mm or less.
3 more elements
A method for manufacturing a composite thermal insulation sheet, the method comprising:
- forming a sol-impermeable coating layer on one surface of a fiber sheet;
- impregnating the other surface of the fiber sheet with a sol and a catalyst to form an impregnated sheet;
- forming a wet gel sheet by gelling the impregnated sheet;
- forming an aerogel sheet by drying the wet gel sheet;
- and
- forming one or more functional layers on the aerogel sheet,
- wherein the sol comprises one or more than one material selected from the group consisting of zirconia, yttrium oxide, hafnia, alumina, titania, ceria, silica, magnesium oxide, calcium oxide, magnesium fluoride and calcium fluoride,
- wherein a thickness of the coating layer is from 30 μm or less, and
- wherein a thickness of the composite thermal insulation sheet is 3 mm or less.
6 more elements
Dependencies are inferred from the claim text.