Thermal insulation material and method for producing thermal insulation material
AssigneeEach Dream Co., Ltd.
InventorHideo Hamamura
Life of this patent
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Abstract
A thermal insulation material contains: a dehydration condensation reaction product of sodium silicate; alumina cement; and smoked charcoal. The thermal insulation material preferably further contains one or more selected from the group consisting of a silica-based hollow balloon, a silicate mineral, and diatomaceous earth. The thermal insulation material has, for example, a board-shaped form. In a method for producing a thermal insulation material, a raw material containing sodium silicate, alumina cement, and smoked charcoal is heated to cause a dehydration condensation reaction of the sodium silicate to occur.
Claims4
A thermal insulation material comprising:
- a dehydration condensation reaction product of sodium silicate as a component (a);
- 40 parts by mass or more and 100 parts by mass or less of alumina cement with respect to 100 parts by mass of the component (a);
- 30 parts by mass or more and 80 parts by mass or less of smoked charcoal with respect to 100 parts by mass of the component (a);
- and
- one or more selected from the group consisting of:
- 3 parts by mass or more and 15 parts by mass or less of a silica-based hollow balloon with respect to 100 parts by mass of the component (a);
- 1 part by mass or more and 10 parts by mass or less of a silicate mineral with respect to 100 parts by mass of the component (a);
- and
- 3 parts by mass or more and 20 parts by mass or less of a diatomaceous earth with respect to 100 parts by mass of the component (a).
A method for producing a thermal insulation material, the method comprising:
- heating a raw material comprising sodium silicate, alumina cement, and smoked charcoal to cause a dehydration condensation reaction of the sodium silicate to occur;
- the raw material containing:
- sodium silicate as a component (a);
- 40 parts by mass or more and 60 parts by mass or less of alumina cement with respect to 100 parts by mass of the component (a);
- 20 parts by mass or more and 50 parts by mass or less of smoked charcoal with respect to 100 parts by mass of the component (a);
- and
- one or more selected from the group consisting of:
- 1 part by mass or more and 10 parts by mass or less of a silica-based hollow balloon with respect to 100 parts by mass of the component (a);
- 1 part by mass or more and 10 parts by mass or less of a silicate mineral with respect to 100 parts by mass of the component (a);
- and
- 3 parts by mass or more and 20 parts by mass or less of a diatomaceous earth with respect to 100 parts by as of the component (a).
Dependencies are inferred from the claim text.