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Fireproof, waterproof and environmentally friendly silica aerogel heat-insulation paste

A silicon aerogel and aerogel technology are used in the fields of fire prevention, environmental protection thermal insulation paste, and waterproofing, which can solve the problems of high cost and thermal conductivity, high thermal conductivity, and difficulty in dispersion, so as to improve the hydrophobicity and reduce the thermal conductivity. , Improve the effect of thermal insulation capacity

Active Publication Date: 2018-09-14
TIANJIN WEIYUAN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Some traditional thermal insulation pastes are fireproof but not waterproof; some are fireproof and waterproof but have high thermal conductivity. Therefore, the preparation of fireproof, waterproof, low-carbon and environmentally friendly energy-saving thermal insulation pastes to solve the above problems has immeasurable development prospects
[0006] The Chinese patent No. 201210108965.3 discloses a high-performance nano-insulation paste, which uses a fibrous magnesium-rich clay mineral sepiolite wool, and adds active ingredients such as glass beads and airgel. The paste has good mechanical strength, and its thermal conductivity can reach 0.043W / m·K, but the use of traditional airgel powder is expensive and difficult to disperse, resulting in high cost and thermal conductivity
[0007] The Chinese patent No. 201010185554.5 discloses a low-carbon ceramic wall thermal insulation paste, which is composed of a large amount of high-adhesive inorganic binder and a small amount of preferred film-forming agent. Combustible materials are used as fillers. The flame retardant performance of the thermal insulation paste is Class A, the thermal conductivity can reach 0.048w / m·k, and the compressive and tensile properties are good. However, the use of traditional airgel powder is expensive and difficult to disperse. Lead to high cost and thermal conductivity

Method used

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  • Fireproof, waterproof and environmentally friendly silica aerogel heat-insulation paste
  • Fireproof, waterproof and environmentally friendly silica aerogel heat-insulation paste

Examples

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Effect test

Embodiment 1~8

[0079] 1. A formula for a silica airgel fireproof, waterproof, and environmentally friendly thermal insulation paste, comprising 20 to 70 parts by weight of raw material A, 20 to 50 parts by weight of raw material B, and 20 to 50 parts by weight of raw material The water A of C, 1~15 parts by weight, the concrete consumption of each component among the embodiment 1~8 is shown in Table 1;

[0080] Raw material A, in terms of parts by weight, includes 1 to 15 parts by weight of hydroxymethyl cellulose, hydroxyethyl cellulose, methanol A, n-hexane A, ethanol, or a mixture of one or more of them, 65 to 115 parts by weight Parts of airgel precursor;

[0081] Raw material B, in parts by weight, includes 25-75 parts by weight of silica sol, 20-70 parts by weight of silicone-modified acrylic emulsion, 10-40 parts by weight of water B, and 0.05-0.5 parts by weight of polyacrylamide , 1-10 parts by weight of coupling agent A, 1-13 parts by weight of film-forming aids;

[0082] Raw mat...

Embodiment 9~16

[0124] The comparative group Examples 9-16 of Examples 1-8 are set respectively, and the formulas of Examples 9-16 also include a foaming agent and foaming treatment after the preparation of the thermal insulation paste is completed; for the rest, Example 9 is the same as that of Example 1, embodiment 10 is the same as embodiment 2, embodiment 11 is the same as embodiment 3, embodiment 12 is the same as embodiment 4, embodiment 13 is the same as embodiment 5, embodiment 14 is the same as embodiment 6, and embodiment 15 is the same as embodiment 7, Embodiment 16 is the same as embodiment 8;

[0125] 1. A formula for a silica airgel fireproof, waterproof, and environmentally friendly thermal insulation paste, comprising 20 to 70 parts by weight of raw material A, 20 to 50 parts by weight of raw material B, and 20 to 50 parts by weight of raw material C, 1 to 15 parts by weight of water A, foaming agent; the parts by weight of the foaming agent are 1 / 10 to 1 of the sum of the par...

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Abstract

The invention belongs to the technical field of energy-saving and environmentally friendly materials, and particularly relates to a fireproof, waterproof and environmentally friendly silica aerogel heat-insulation paste for building and industrial energy-saving heat insulation. An aerogel precursor is added in the heat-insulation paste during preparation, silica sol and S=silicone modified acrylicemulsion are used as binding agent, and thus, the fireproof, waterproof and environmentally friendly silica aerogel heat-insulation paste has heat-insulation performance which is incomparable to a traditional material. After the heat-insulation paste is dry, the mechanical strength of the heat-insulation paste is high, fireproof A 1 level is realized, moreover, the fireproof, waterproof and environmentally friendly silica aerogel heat-insulation paste has the advantages of good waterproofness and low cost, and a novel material is provided for building energy conservation, environmental protection and industrial energy conservation.

Description

[0001] This application is a divisional application of a Chinese invention patent with the patent application number 201710277592.5 (application date: April 25, 2017, patent name: a silicone airgel fireproof, waterproof, environmentally friendly thermal insulation paste and its preparation method). technical field [0002] The invention belongs to the technical field of energy-saving and environment-friendly materials, and in particular relates to a fireproof, waterproof and environment-friendly heat preservation paste prepared from airgel precursors for building and industrial energy-saving heat preservation. Background technique [0003] In recent years, the field of building energy conservation has gradually attracted people's attention. Traditional organic thermal insulation materials are bound to gradually fade out of the stage of thermal insulation materials due to their flammability, large amounts of harmful gases generated during combustion, and difficulty in degradati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/24C04B111/28C04B111/27
CPCC04B28/24C04B2111/27C04B2111/28C04B2201/32C04B2201/50C04B24/383C04B24/02C04B24/42C04B24/2652C04B14/18C04B14/08C04B14/46C04B14/104C04B24/00C04B18/26C04B14/28
Inventor 郑善
Owner TIANJIN WEIYUAN TECH DEV CO LTD
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