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Thermal insulation material with low heat conduction coefficient and preparation method thereof

A technology of thermal insulation materials and thermal conductivity, applied in the field of thermal insulation materials, can solve the problems of short service life, insufficient stability, poor thermal insulation effect, etc., and achieve the effect of improving fire resistance, stability and crack resistance, and good thermal insulation effect.

Inactive Publication Date: 2018-08-03
HEFEI ZHENXUN LOW TEMPERATURE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The thermal insulation materials in the prior art generally have problems such as poor thermal insulation effect, poor fire resistance, insufficient stability, easy cracking, and short service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment relates to a thermal insulation material with low thermal conductivity, including the following raw materials in parts by weight: 10 parts of polystyrene particles, 18 parts of glass microspheres, 14 parts of bentonite, 12 parts of coal gangue, 8 parts of polyacrylamide, and 18 parts of magnesium chloride , 1 part of graphite, 10 parts of coated nano fly ash, 15 parts of quartz sand, 16 parts of light calcium powder, 3 parts of active calcium hydroxide, 1 part of glass fiber, 4 parts of sodium carboxymethyl cellulose, and 1 part of foaming agent 2 parts, water-repellent agent 2 parts.

[0029] Wherein, the preparation method of the coated nano fly ash is:

[0030] (1) Disperse the fly ash by ball milling with alcohol for 3 hours, then add 3% of its weight of alkyl glycoside, 2% of tricresyl phosphate and 8% of deionized water, and keep the temperature at 65°C Stir and heat in a water bath for 30 minutes to obtain a dispersion;

[0031] (2) Add 25% alum...

Embodiment 2

[0042] This embodiment relates to a thermal insulation material with low thermal conductivity, including the following raw materials in parts by weight: 20 parts of polystyrene particles, 27 parts of glass microspheres, 26 parts of bentonite, 20 parts of coal gangue, 16 parts of polyacrylamide, and 32 parts of magnesium chloride , 3 parts of graphite, 20 parts of coated nano fly ash, 25 parts of quartz sand, 23 parts of light calcium powder, 4 parts of active calcium hydroxide, 2 parts of glass fiber, 6 parts of sodium carboxymethyl cellulose, and 3 parts of foaming agent 4 parts, water-repellent agent.

[0043] Wherein, the preparation method of the coated nano fly ash is:

[0044] (1) Disperse the fly ash by ball milling with alcohol for 3 hours, then add 3% of its weight of alkyl glycoside, 2% of tricresyl phosphate and 8% of deionized water, and keep the temperature at 65°C Stir and heat in a water bath for 30 minutes to obtain a dispersion;

[0045] (2) Add 25% aluminum...

Embodiment 3

[0056] This embodiment relates to a thermal insulation material with low thermal conductivity, including the following raw materials in parts by weight: 13 parts of polystyrene particles, 20 parts of glass microspheres, 17 parts of bentonite, 15 parts of coal gangue, 10 parts of polyacrylamide, and 20 parts of magnesium chloride , 1.6 parts of graphite, 13 parts of coated nano fly ash, 19 parts of quartz sand, 17 parts of light calcium powder, 3.3 parts of active calcium hydroxide, 1.2 parts of glass fiber, 4.5 parts of sodium carboxymethyl cellulose, and 1.3 parts of foaming agent part, 2.5 parts of water-repellent agent.

[0057] Wherein, the preparation method of the coated nano fly ash is:

[0058] (1) Disperse the fly ash by ball milling with alcohol for 3 hours, then add 3% of its weight of alkyl glycoside, 2% of tricresyl phosphate and 8% of deionized water, and keep the temperature at 65°C Stir and heat in a water bath for 30 minutes to obtain a dispersion;

[0059] ...

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PUM

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Abstract

The invention discloses a thermal insulation material with a low heat conduction coefficient. The thermal insulation material is prepared from the following raw materials in parts by weight: 10-20 parts of polyphenyl particle, 18-27 parts of glass bead, 14-26 parts of bentonite, 12-20 parts of gangue, 8-16 parts of polyacrylamide, 18-32 parts of magnesium chloride, 1-3 parts of graphite, 10-20 parts of enveloped nanometer coal ash, 15-25 parts of quartz sand, 16-23 parts of light calcium carbonate, 3-4 parts of active calcium hydroxide, 1-2 parts of glass fiber, 4-6 parts of sodium carboxymethylcellulose, 1-3 parts of foaming agent and 2-4 parts of water repellent. The thermal insulation material with the low heat conduction coefficient has the advantages of low heat conduction coefficient, good thermal insulation effect, excellent fire resistance performance, good stability, small possibility of cracking and long service life.

Description

technical field [0001] The invention belongs to the field of thermal insulation materials, and in particular relates to a thermal insulation material with low thermal conductivity and a preparation method thereof. Background technique [0002] Insulation materials are generally materials with a thermal coefficient less than or equal to 0.12. The development of thermal insulation materials is rapid, and the use of good thermal insulation technology and materials in industry and construction can often achieve twice the result with half the effort. [0003] The thermal insulation materials in the prior art generally have problems such as poor thermal insulation effect, poor fire resistance, insufficient stability, easy cracking, and short service life. Contents of the invention [0004] The present invention provides a thermal insulation material with low thermal conductivity and a preparation method thereof, which solves the problems in the above-mentioned background techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/30C04B20/10C04B38/10
CPCC04B28/30C04B20/107C04B16/08C04B14/22C04B14/104C04B18/12C04B24/2652C04B14/024C04B18/08C04B14/06C04B14/28C04B22/064C04B14/42C04B24/383C04B2103/65C04B24/16C04B38/10C04B22/08C04B22/10
Inventor 周青松
Owner HEFEI ZHENXUN LOW TEMPERATURE TECH CO LTD