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Heat-insulating composition, method of preparing the same, and heat-insulating element using the same

A composition and polymer technology, applied in heat exchange equipment, chemical instruments and methods, and protection of pipelines through thermal insulation, etc., can solve problems such as inability to achieve thermal insulation properties, and achieve excellent economic benefits.

Active Publication Date: 2016-03-30
中科高新材料(南通)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, since the excellent thermal insulation properties of aerogels are achieved through the massive pore structure formed inside the aerogels, most of the thermal insulation properties may not be realized due to the fact that these pores are filled with binders.

Method used

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  • Heat-insulating composition, method of preparing the same, and heat-insulating element using the same
  • Heat-insulating composition, method of preparing the same, and heat-insulating element using the same
  • Heat-insulating composition, method of preparing the same, and heat-insulating element using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment 1: Preparation of thermal insulation composition

[0080] A gel-like aqueous solution was prepared by mixing 10 g of a superabsorbent polymer (SAP) (HI-SWELL available from SONGWON), 5 g of carboxymethylcellulose, and 200 g of water. Here, the viscosity of the gel-like aqueous solution measured with a viscometer (SV-10kv from AND Company) was 5200CP.

[0081] Subsequently, 50 g of airgel was added to the above aqueous solution using a fast stirrer at a rotational speed of 2500 rpm, and stirred for 20 minutes, thus obtaining an aqueous airgel composition in which the airgel was uniformly dispersed.

[0082] 100 g of the obtained aqueous airgel composition and 100 g of a high-temperature silicon binder (50% by dry weight) were mixed, thus obtaining a thermal insulation composition.

Embodiment 2

[0091] Example 2: Manufacture of thermal insulation elements

[0092] The thermal insulation composition obtained in Example 1 is coated on a glass fiber mat (120g / m2) of about 0.5mm thickness 2 low density) and then stacked to have a thickness of 1 mm to obtain a laminate, which was stacked and folded 4 times, and then dried at 120° C. for 3 hours to manufacture a heat insulating element.

Embodiment 3

[0093] Example 3: Manufacture of thermal insulation elements

[0094] A gel-like aqueous solution was prepared by mixing 10 g of a superabsorbent polymer (SAP) (HI-SWELL available from SONGWON), 5 g of carboxymethylcellulose, and 200 g of water. Here, the viscosity of the gel-like aqueous solution measured with a viscometer (SV-10kv from AND Company) was 5200CP.

[0095] Subsequently, 50 g of airgel was added to the above aqueous solution using a fast stirrer at a rotational speed of 2500 rpm, and stirred for 20 minutes, thus obtaining an aqueous airgel composition in which the airgel was uniformly dispersed.

[0096] 100 g of the obtained aqueous airgel composition, 70 g of high-temperature silicon binder (50% by dry weight) and 30 g of water glass solution were mixed, thus obtaining a thermal insulation composition.

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Abstract

A heat-insulating composition, a method of preparing the same, and a heat-insulating element using the same are provided. The heat-insulating composition includes water, a super absorbent polymer (SAP), a hydrophobic powder, and a silicon binder. The method of preparing a heat-insulating composition includes producing a gelatinous aqueous solution by mixing water and a super absorbent polymer (SAP) with each other, obtaining a waterborne mixture by adding a hydrophobic powder to the gelatinous aqueous solution to be accompanied with stirring, and adding a silicon binder to the waterborne mixture. The heat-insulating element includes a heat-insulating substrate, and a heat insulation composition layer formed on the heat-insulating substrate.

Description

technical field [0001] The present invention relates to a heat-insulating composition (heat-insulating composition) and its preparation method and a heat-insulating element using the heat-insulating composition, and more particularly, to a composition and its preparation method and a heat-insulating composition using the same A heat insulating element, the composition comprising a hydrophobic powder and a silicon binder, when the hydrophobic powder is formed from an airgel material, enables the composition to maintain heat insulating properties. Background technique [0002] Airgel materials with hydrophobic properties and porous structures have been used in some applications due to their thermal insulation, thermal insulation, and similar properties, and in particular, silicon airgel is a typical thermal insulation material. However, although the airgel material has excellent heat insulation, thermal insulation, and sound absorption characteristics, its price is high, so fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08K7/22C08K9/06C09K3/00
CPCC08L83/04C08K3/36C08L101/12D06N3/0059D06N3/0063D06N3/0068D06N3/042D06N3/128D06N2201/082D06N2203/026D06N2203/045D06N2209/065D06N2209/148F16L59/028F16L59/14
Inventor 俞正根李银镛朴斗石韩廷昊
Owner 中科高新材料(南通)有限责任公司
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