Aerogel and temperature-sensitive hydrogel compound heat-insulating and heat-preserving glass

A temperature-sensitive hydrogel, thermal insulation technology, applied in the field of personal care, can solve the problems of collapse of aerogel skeleton, loss of thermal insulation function, loss of products, etc., and achieve the effect of reducing load

Inactive Publication Date: 2020-05-19
长沙凯泽工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mixing airgel and temperature-sensitive hydrogel also has some disadvantages. For example, one of the most obvious defects is that the long-term immersion of temperature-sensitive hydrogel w

Method used

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  • Aerogel and temperature-sensitive hydrogel compound heat-insulating and heat-preserving glass

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A kind of airgel and temperature-sensitive hydrogel composite thermal insulation glass, the hydrophobically modified porous SiO 2 The structure of the thermal insulation glass combined with airgel and temperature-sensitive hydrogel includes a cavity formed by glass; the cavity is filled with polyacrylamide temperature-sensitive hydrogel, wherein the temperature-sensitive hydrogel also contains 0.1wt% gelatin as a thickener ; airgel dispersed in thermosensitive hydrogel.

[0037] Hydrophobically modified porous SiO 2 The total mass of the airgel is 5g, the total mass of the thermosensitive hydrogel is 5000g, and the glass cavity is a cuboid with a volume of about 5L.

[0038] The hydrophobically modified porous SiO 2 Airgel, prepared by the following steps:

[0039] S1. Porous SiO with 20 parts by mass 2 Soaked in ethanol for 24h to obtain aged porous SiO 2 ;

[0040] S2. The aged porous SiO 2 Mix with trimethylchlorosilane (1:1, n / n) in an ethanol solution with 1...

Embodiment 2

[0048] A kind of airgel and temperature-sensitive hydrogel composite thermal insulation glass, the hydrophobically modified porous SiO 2 The structure of the thermal insulation glass combined with airgel and temperature-sensitive hydrogel includes a cavity formed by glass; the cavity is filled with polyacrylamide temperature-sensitive hydrogel, wherein the temperature-sensitive hydrogel also contains 0.2wt% agar as a thickener ; airgel dispersed in thermosensitive hydrogel.

[0049] Hydrophobically modified porous SiO 2 The total mass of the airgel is 5g, the total mass of the thermosensitive hydrogel is 5000g, and the glass cavity is a cuboid with a volume of about 5L.

[0050] The hydrophobically modified porous SiO 2 Airgel, prepared by the following steps:

[0051] S1. Porous SiO with mass parts as 30 parts 2 Soaked in ethanol for 48h to obtain aged porous SiO 2 ;

[0052] S2. The aged porous SiO 2 Mix with trimethylchlorosilane (1:1.5, n / n) in an ethanol solution w...

Embodiment 3

[0060] A kind of airgel and temperature-sensitive hydrogel composite thermal insulation glass, the hydrophobically modified porous SiO 2 The structure of the thermal insulation glass composited with airgel and temperature-sensitive hydrogel includes a cavity formed by glass; the cavity is filled with polyacrylamide temperature-sensitive hydrogel, wherein the temperature-sensitive hydrogel also contains 0.3wt% carboxymethyl cellulose As a thickener; airgel dispersed in thermosensitive hydrogel.

[0061] Hydrophobically modified porous SiO 2 The total mass of the airgel is 5g, the total mass of the thermosensitive hydrogel is 5000g, and the glass cavity is a cuboid with a volume of about 5L.

[0062] The hydrophobically modified porous SiO 2 Airgel, prepared by the following steps:

[0063] S1. Porous SiO with mass parts as 25 parts 2 Soaked in ethanol for 36h to obtain aged porous SiO 2 ;

[0064] S2. The aged porous SiO 2 Mix with hexamethyldisilazane (1:1.2, n / n) in an...

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Abstract

The invention discloses aerogel and temperature-sensitive hydrogel compound heat-insulating and heat-preserving glass, which comprises a cavity formed by glass, wherein the temperature-sensitive hydrogel is filled in the cavity, the aerogel is dispersed in the temperature-sensitive hydrogel, the aerogel is hydrophobically modified porous SiO2 aerogel, and the temperature-sensitive hydrogel is polyacrylamide temperature-sensitive hydrogel or epoxy copolymer temperature-sensitive hydrogel. After the aerogel and the temperature-sensitive hydrogel are compounded, the deformation influence on an aerogel framework caused by long-term soaking of liquid can be resisted, so that the heat insulation and heat preservation characteristics of the heat insulation and heat preservation glass are remarkably enhanced, and the service life of the heat insulation and heat preservation glass is prolonged.

Description

technical field [0001] The invention belongs to the field of personal care, and in particular relates to a heat-insulating glass composited with airgel and temperature-sensitive hydrogel and a preparation method thereof. Background technique [0002] Airgel is a highly porous material formed by removing the liquid solvent in the gel while maintaining the three-dimensional network structure of the gel. In the 1930s, Kistler successfully prepared aerogels; since the 1970s, sol-gel technology has developed rapidly, and the related properties of aerogels, such as ultra-high porosity (80-99.8%), high specific Surface area (100-1600㎡ / g), ultra-low density (0.004-0.500g / cm 3 ) and other properties, it has broad application prospects in the fields of optics, electricity, acoustics, thermal and catalysis. [0003] Airgel has significant advantages as a high-temperature insulation product. The main principle is (1) convection: when the diameter of the pores in the airgel is less th...

Claims

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Application Information

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IPC IPC(8): C08L33/26C08L89/00C08L5/12C08L1/28C08K9/06C08K7/26
CPCC08L33/26C08L89/00C08K9/06C08K7/26C08L5/12C08L1/286C08L1/284
Inventor 汪玉慧
Owner 长沙凯泽工程设计有限公司
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