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A kind of paint and preparation method thereof, two-component paint and components containing the paint

A two-component, component technology, applied in the field of coatings, can solve problems such as shortening the service life of electronic components or electrical appliances, easy dust accumulation of electronic components or electrical appliances, reliability and safety issues, etc., to overcome poor heat dissipation, Effect of enhancing water repellency and dustproof performance, increasing surface area

Active Publication Date: 2020-03-17
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in practical applications, due to the effects of static electricity, moisture and organic pollutants, electronic components or electrical appliances are prone to dust accumulation, especially the heat dissipation part of electronic components or electrical appliances has a large expansion area, compact structure, and dense fins. It is very easy to accumulate dust after long-term use
Usually, the heat dissipation part of electronic components or electrical appliances is made of aluminum alloy or copper with a large heat dissipation coefficient. Finally, the thermal conductivity K value decreases (the thermal conductivity of copper is usually 380W / m·k, the thermal conductivity of aluminum alloy is usually 150-180W / m·k, and the thermal conductivity of dust is 10W / m·k), therefore, The heat transfer coefficient will be greatly attenuated, which greatly reduces the heat dissipation of the heat dissipation part, and the surface is easy to absorb moisture after dust accumulation. In a long-term humid environment, aluminum alloy or copper will chemically corrode with sulfide in air pollutants, etc. , which will shorten the service life of electronic components or electrical appliances, and may also cause reliability and safety problems

Method used

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  • A kind of paint and preparation method thereof, two-component paint and components containing the paint
  • A kind of paint and preparation method thereof, two-component paint and components containing the paint

Examples

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preparation example Construction

[0038]On the other hand, an embodiment of the present invention provides a method for preparing the coating as described above, including:

[0039] Bulk polymerization reaction of the polymer monomer and heat dissipation particles in a solvent under the action of an initiator to obtain a coating comprising a film-forming substance, heat dissipation particles and a dispersion medium; wherein, the film-forming substance has a surface dyne value less than A polymer equal to 36 dyn / cm, the heat dissipation particles include titanium nitride nitride microparticles.

[0040] The embodiment of the present invention provides a method for preparing a paint. Through the bulk polymerization reaction of the polymer monomer and the heat dissipation particles in the solvent under the action of the initiator, the coating containing the film-forming substance, the heat dissipation particles and the dispersion medium can be directly obtained. This method has a simple process and is easy to be ...

Embodiment 1

[0078] Add about 400.03g ethyl acetate, 357.4g butyl acetate, 2g fatty alcohol polyoxyethylene ether, 2g50nm titanium tetranitride particles and about 26.9g butyl acrylate, 43.0g methyl methacrylate, 10.8 g hydroxyethyl methacrylate, 26.9 g dodecafluoroheptyl methacrylate, stir evenly and then raise the temperature to 90°C, add dropwise the mixture containing 0.43 g azobisisobutyronitrile and 42.57 g ethyl acetate within 3 hours Initiator solution (mass fraction: 1%) was kept at the temperature for 2 hours after the dropwise addition, and cooled to normal temperature to obtain A coating.

[0079] After mixing the coating A and the curing agent B containing NCO groups according to the molar ratio of -NCO / -OH=1, spray the coating on the surface of the laser radiator material, bake at 60°C for 30 minutes, and form a Coating with a thickness of 20 μm.

[0080] The dyne value of the surface of the sprayed FIN sheet was 33dyn / cm, the contact angle between water and the surface was ...

Embodiment 2

[0082] Add 382.9g ethyl acetate, 1.6g fatty alcohol polyoxyethylene ether, 1g800nm ​​titanium tetranitride microparticles and 25.375g butyl acrylate, 21.75g ​​methyl methacrylate, 10.875g hydroxyethyl methacrylate in the reactor , 7.5g hexafluorobutyl methacrylate, 7g trifluoroethyl methacrylate, stir evenly and then raise the temperature to 91°C, dropwise add 0.3g azobisisobutyronitrile, 0.6g benzoyl peroxide And 17.1g of ethyl acetate configured initiator solution (mass fraction is 5%), continue to maintain the temperature for 1h after the dropwise addition is completed, and cool to normal temperature to obtain A coating.

[0083] Mix A coating with curing agent B containing NCO groups according to the ratio of -NCO / -OH=1.05, spray the coating on the surface of the laser projector housing, dry it at 65°C for 25 minutes, and then spray it on the surface of the sprayed material A coating layer with a thickness of 5 µm was formed.

[0084] After testing, the dyne value of the ...

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Abstract

The invention relates to the technical field of paints, and particularly relates to a paint, a preparation method thereof, a two-component paint containing the paint and a component. The paint is capable of playing dustproof and hydrophobic roles and improving the heat dissipation effect. The embodiment of the invention provides the paint. The paint contains a film-forming matter, cooling particles and a dispersion medium for dispersing the film-forming matter and the cooling particles, wherein the film-forming matter is a polymer of which the surface dyne value is smaller than or equal to 36dyn / cm; the cooling particles include tri-titanium tetranitride particles. The preparation method is used for production and preparation of a dustproof and hydrophobic paint.

Description

technical field [0001] The invention relates to the technical field of paint, in particular to a paint and a preparation method thereof, a two-component paint containing the paint and components. Background technique [0002] With the rapid development of science and technology, the density and miniaturization of integrated circuits is getting higher and higher, and electronic components or electrical appliances become smaller and run at higher speeds, making their requirements for heat dissipation higher and higher. [0003] However, in practical applications, due to the effects of static electricity, moisture and organic pollutants, electronic components or electrical appliances are prone to dust accumulation, especially the heat dissipation part of electronic components or electrical appliances has a large expansion area, compact structure, and dense fins. It is very easy to accumulate dust after long-term use. Usually, the heat dissipation part of electronic components ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/61C09D7/62C08F220/14C08F220/18C08F220/28C08F220/22
CPCC08F220/14C08F220/18C08F220/1804C08K3/28C08K2201/011C09D7/62C09D175/04C08F220/281C08F220/22
Inventor 邢哲
Owner HISENSE VISUAL TECH CO LTD
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