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Water-based electric heating slurry and preparation method thereof

A water-based, electric heating technology, used in heating element materials, polyurea/polyurethane coatings, coatings, etc., can solve the problems of glass deformation, affecting the conductive effect, poor flexibility of the paste, etc.

Pending Publication Date: 2022-01-07
北京石墨烯研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the glass material, the water-based electric heating paste currently on the market has poor adhesion on the glass, and the glass is deformed during transportation, which is easy to damage the adhesion between the glass and the paste, affecting the conductive effect, and the flexibility of the paste. Poor stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] When a self-made aqueous polyurethane emulsion, the specific synthesis method is acetazone, including:

[0034] Mix the appropriate amount of polypropylene glycol and isocyanate mixed with a four-mouth flask, four flasks with condensed tubes, thermometer, and constant pressure drops. The starter mixer was adjusted to a suitable rotational speed (800R / min), and heated to a temperature of about 85 ° C for 2 h and left. The solvent acetone was added during the reaction to reduce the viscosity of the prepolymer, then cooled to 80 ° C, add 6- 7 drip catalysts dibutyl silicate, then mixed the prior tetrahydroxymethyl proppropionic acid and 1,4-butanediol mixed, and slowly drip into the flask in a constant pressure droplet funnel to maintain this temperature reaction. 2H, the theoretical content of the isocyanate group is determined by the di-n-butamide method. When the theoretical value is reached, the temperature is reduced to 50 ° C, adding a proper amount of triethylamine re...

Embodiment 1

[0056] Heating the aqueous slurry formulation to 100 parts aqueous polyurethane emulsion; 170 parts of deionized water; 30 parts of carbon nanotube powder; 2 parts of an adhesion promoter; 2 parts of an amine neutralizing agent; 2 parts coalescents; leveling agent 2.5 parts; defoamer 1; 3 parts of a dispersing agent.

[0057] The aqueous polyurethane emulsion, deionized water, in proportion to the carbon nanotube powder were added sequentially to a sand mill, ground to a particle size of 4μm or less, resulting millbase;

[0058] The millbase with the remaining constituents added in one portion to a high speed mixer and stir until the slurry viscosity greater than 10,000 centipoise, heating to obtain an aqueous slurry.

Embodiment 2

[0060] Heating the aqueous slurry formulation to 100 parts aqueous polyurethane emulsion; 170 parts of deionized water; 30 parts of carbon nanotube powder; 4 parts of an adhesion promoter; 2 parts of an amine neutralizing agent; 2 parts coalescents; leveling agent 1.5 parts; defoamer 1; 2 parts dispersing agent.

[0061] The aqueous polyurethane emulsion, deionized water, in proportion to the carbon nanotube powder were added sequentially to a sand mill, ground to a particle size of 4μm or less, resulting millbase;

[0062] The millbase with the remaining constituents added in one portion to a high speed mixer and stir until the slurry viscosity greater than 10,000 centipoise, heating to obtain an aqueous slurry.

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Abstract

The invention provides water-based electric heating slurry coated on glass and a preparation method of the water-based electric heating slurry, and the water-based electric heating slurry comprises the following components in parts by weight: 100-120 parts of water-based polyurethane emulsion; 150 to 170 parts of deionized water; 30 to 40 parts of carbon nano tube powder; 2-5 parts of an adhesion promoter; and 0.5 to 2.5 parts of an amine neutralizer. The water-based electric heating slurry is good in adhesive force and flexibility, the adhesive force can be increased when the water-based electric heating slurry is coated on a glass substrate, and glass deformation is avoided.

Description

Technical field [0001] The present invention relates to the field of electrothermal slurry, and more particularly to an aqueous electrothermal slurry and a preparation method thereof. Background technique [0002] In order to increase the adhesion, the electric thermal slurry on the market is mainly oily, and the oily electric thermal slurry has a volatile harmful gas during coating and use, and the aqueous resin is used as a solvent, which is more environmentally friendly. [0003] Due to the glass material, the water-based electric thermal slurry on the market is poor in the glass, and the glass is deformable during transportation, and the adhesion of glass and slurry can affect the conductive effect, the soft paste. Poor stability. [0004] It should be noted that the information disclosed in the foregoing contemplation is only used to enhance the background understanding of the present invention, and therefore it can include information that does not constitute a prior art kn...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/61C09D7/63C09D7/65H05B3/10
CPCC09D175/04C09D7/61C09D7/70C09D7/63C09D7/65H05B3/10C08L2205/03C08L63/00C08K13/02C08K3/041C08K5/17
Inventor 李志崔可建高翾付捷
Owner 北京石墨烯研究院有限公司
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