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Thermal-insulating coating containing hollow silica microspheres and application of coating

A technology of silicon dioxide and thermal insulation coatings, applied in the directions of silicon dioxide, silicon oxide, epoxy resin coatings, etc., can solve the problems of many thermal insulation coating additives, poor thermal insulation performance of thermal insulation coatings, etc. Thermal effect, not easy to drop powder, good air permeability

Active Publication Date: 2019-08-23
杭州纳硅微球科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: in order to solve the disadvantages of poor thermal insulation performance and more thermal insulation coating additives of the thermal insulation coating containing hollow silica microspheres in the prior art, especially in the prior art, there is no The thermal insulation coating containing hollow silica microspheres is applied in the field of fabric or glass fiber paper heat insulation, thus the present invention provides a thermal insulation coating containing hollow silica microspheres and its application

Method used

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  • Thermal-insulating coating containing hollow silica microspheres and application of coating
  • Thermal-insulating coating containing hollow silica microspheres and application of coating
  • Thermal-insulating coating containing hollow silica microspheres and application of coating

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Effect test

Embodiment 1

[0040] This embodiment provides a method for preparing hydrophilic hollow silica microspheres, including the following steps:

[0041] S1: Add methyltriethoxysilane (65g) to a mixed solution of ethyl orthosilicate (152g) and polyethylene glycol (9.4g) stirred at low speed (rotational speed is 200 rpm) and mix Evenly, add 20 grams of ethanol to the mixed solution to make it transparent; then slowly drop 25g of a hydrochloric acid solution with a concentration of 4.1 mol / L. After the addition is complete, the temperature is raised to 80°C, and the stirring reaction is continued for 4 hours. The ethanol in the system is quickly distilled off under reduced pressure to obtain a turbid prepolymer solution with a certain viscosity;

[0042] S2: Under stirring conditions (stirring speed is 500 rpm), add 20 grams of the above-mentioned prepolymer solution dropwise to 200 grams of distilled water to form an emulsion;

[0043] S3: After the dropwise addition of the prepolymer solution is compl...

Embodiment 2

[0048] This embodiment provides a method for preparing hydrophobic hollow porous silica microspheres, including the following steps:

[0049] S1: Add r-aminopropyltriethoxysilane (84.7g) to a mixture of methyl orthosilicate (154g) and polyethylene glycol (8.2g) stirred at low speed (rotational speed is 200 rpm) Mix the solution uniformly, then add 30 g of isopropanol to the mixture to make it transparent; then slowly drop 32 g of sulfuric acid solution with a concentration of 2 mol / L. After the addition is complete, heat up to 80°C and continue stirring After reacting for 4 hours, the isopropanol in the system was quickly distilled off under reduced pressure to obtain a turbid prepolymer solution with a certain viscosity;

[0050] S2: Under stirring conditions (stirring speed is 500 rpm), add 20 grams of the above-mentioned prepolymer solution dropwise to 200 grams of distilled water to form an emulsion;

[0051] S3: After the dripping of the prepolymer solution is completed, add ac...

Embodiment 3

[0056] This embodiment provides a method for preparing hydrophilic hollow porous silica microspheres, including the following steps:

[0057] S1: Add vinyltrimethoxysilane (45.3g) to the mixed solution of isopropyl orthosilicate (151g) and polyethylene glycol (6.04g) stirred at low speed (rotational speed is 200 rpm) and mix Evenly, add 30 g of butanol to the mixture to make it transparent; then slowly drop 7.5 g of a hydrochloric acid solution with a concentration of 5.5 mol / L. After the addition is complete, the temperature is raised to 60°C, and the reaction is continued to be stirred 12 After hours, the film evaporates the butanol in the system to obtain a turbid prepolymer solution with a certain viscosity;

[0058] S2: Under stirring conditions (stirring speed is 200 rpm), add 20 grams of the above-mentioned prepolymer solution dropwise to 100 grams of distilled water to form an emulsion;

[0059] S3: After the dropwise addition of the prepolymer solution is completed, add for...

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Abstract

The invention relates to a thermal-insulating coating containing hollow silica microspheres and application of the coating. The thermal-insulating coating is a mixture of the hollow silica microspheres, a solvent and a binder, wherein the hollow silica microspheres include hollow inner cavities, honeycomb-shaped inner shell layers and outer shell layers, the hollow inner cavities are surrounded bythe honeycomb-shaped inner shell layers which contain dense micropores, mesopores and macropores, and the outer shell layers are adjacent to the honeycomb-shaped inner shell layers, and contain onlymesopores. The invention also provides the application of the thermal-insulating coating to thermal-insulating coated fabric or glass fiber paper, and an application method comprises the steps: applying the thermal-insulating coating on the surface of base cloth of the fabric or the surface of the glass fiber paper, and then performing drying. According to the thermal-insulating coating, the hollow silica microspheres of a novel structure are added, and after the coating is applied to the surface of the base cloth of the fabric or the surface of the glass fiber paper, the thermal insulation effect of the surface of the fabric or glass fiber paper can be improved greatly, so that blanks in application of the hollow silica microspheres in the field of thermal insulation of the fabric or glass fiber paper are filled.

Description

Technical field [0001] This application belongs to the technical field of thermal insulation coating preparation, and in particular relates to a thermal insulation coating containing hollow silica microspheres and its application. Background technique [0002] At present, the warmth preservation function of clothing and quilt products is mainly realized by filling traditional materials such as spray cotton, silk cotton, wadding, and down. However, the above-mentioned materials have the following shortcomings: (1) Thermal insulation fabrics made of the above-mentioned filling materials , The thickness is relatively thick, generally 1 cm to 4 cm; (2) The clothing and bedding products made of the above-mentioned filling materials are fluffy and heavy, and the filling materials are easy to absorb water. Hand washing or machine washing is troublesome, especially for down jackets or duvets The down after washing will clump; (3) The warmth retention effect of clothing and bedding produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/04C09D163/00C09D5/18C09D7/61C01B33/12D06N3/00D06N3/04D06N3/12D06N3/14D21H19/40D21H19/46D21H19/56D21H19/62D21H21/14
CPCC01B33/12C01P2004/03C01P2004/34C01P2004/61C01P2006/12C09D5/18C09D133/04C09D163/00C09D175/04C09D7/61C09D7/70D06N3/0034D06N3/0059D06N3/042D06N3/12D06N3/14D06N2201/0263D06N2203/04D06N2203/06D06N2203/068D06N2209/065D06N2209/067D21H19/40D21H19/46D21H19/56D21H19/62D21H21/14C08K7/26
Inventor 徐永全郭兴忠洪露英
Owner 杭州纳硅微球科技有限公司
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