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SiO2 enriched nano composite heat preserving and thermal insulating paste and preparing process thereof

A nano-composite, thermal insulation technology, applied in the field of thermal insulation, can solve the problems of unsatisfactory thermal insulation effect, high density of dry body and high drying shrinkage rate, and achieve the effects of good strength, low thermal conductivity and simple process

Inactive Publication Date: 2009-07-01
上海暄洋化工材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High drying shrinkage rate, high dry body density, high thermal conductivity, and unsatisfactory thermal insulation effect

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0011] The description will be further described below through specific implementation cases, but the implementation cases are only for illustration and cannot limit the scope of the present invention.

[0012] Case 1

[0013] Take 0.5 part of aluminum hydroxide, 0.6 part of acrylic emulsion, 0.6 part of silicone composite emulsion, 0.2 part of CH-3 hyperdispersant, add 4 parts of water after ball milling, add 0.6 part of calcium silicate fiber, 0.4 part of silicic acid Aluminum fiber, after 20 minutes, add 1 part of inorganic closed-cell microbead material, 0.55 part of expanded perlite, 0.06 part of bentonite, 0.5 part of titanium dioxide, stir well and add 3 parts of SiO 2 Nano airgel, after continuing to stir evenly, add 1 part of inorganic closed-pore microbead material, 0.55 parts of expanded perlite, 3 parts of SiO 2 nano airgel. After stirring evenly, stand still and defoam for 2 hours to obtain the finished product.

[0014] Measured by the Bohr Institute of Solid ...

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PUM

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Abstract

The invention relates to SiO2 nano composite thermal insulation paste, which is characterized in that the form of the SiO2 nano composite thermal insulation paste is a paste mixture, and the dried paste mixture becomes micro pores, nano holes and a fiber structure compound. The paste comprises the following components by weight percentage: 20 to 50 percent of SiO2 nano aerogel, 0 to 30 percent of inorganic closed-hole micro-bead material, 7 to 15 percent of expanded pearlite, 0 to 1 percent of bentonite, 2 to 6 percent of penetrating agent, 10 to 20 percent of adhesive, 3 to 6 percent of calcium silicate fiber, 0 to 5 percent of magnesium aluminum silicate fiber, 0 to 5 percent of aluminum silicate fiber, 0 to 40 percent of water, 0.1 to 2 percent of flame retardant, and 3 to 7 percent of pigment. A preparation device is a vacuum intake and stirring device.

Description

technical field [0001] The present invention relates to a SiO 2 The nanocomposite thermal insulation paste and its preparation process belong to the technical field of thermal insulation and heat reflection, and are suitable for thermal insulation of various pipelines, tanks, equipment, interior and exterior walls of buildings, and door and window seals. Background technique [0002] Existing paste thermal insulation materials, such as the composite silicate thermal insulation material announced by CN87102864A and its preparation method, and the composite thermal insulation paste announced by CN1105380A and its preparation method, all adopt harmful asbestos as aggregate. The drying shrinkage rate is high, the dry body density is high, the thermal conductivity is high, and the heat preservation effect is not ideal. [0003] The purpose of the present invention is to overcome the shortcomings in the above-mentioned prior art, to provide a kind of harmful substance that does n...

Claims

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Application Information

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IPC IPC(8): C04B28/34C04B26/00C04B20/06C04B14/38C04B24/40
CPCC04B2111/28C04B2111/00008C04B28/344C04B26/06C04B26/08C04B26/32C04B12/04C04B14/064C04B14/104C04B14/185C04B14/24C04B14/4643C04B14/465C04B14/4656C04B24/16C04B24/2641C04B24/2682C04B24/42C04B40/0028C04B40/0089C04B2103/408C04B2103/54C04B2103/63C04B14/04C04B14/303C04B14/305C04B14/308C04B22/16C04B24/128
Inventor 汪培庆汪庆锋汪国庆
Owner 上海暄洋化工材料科技有限公司
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