Self-cleaning automobile coating and preparation method thereof

A self-cleaning, automotive technology, applied in coatings and other directions, can solve the problems of not applying self-cleaning coatings for auto parts, and achieve the effects of improving photocatalytic performance, excellent anti-fog, and good self-cleaning ability

Pending Publication Date: 2022-05-10
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is currently mostly used in the construction field, and there is no self-cleaning coating applied to auto parts

Method used

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  • Self-cleaning automobile coating and preparation method thereof
  • Self-cleaning automobile coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A kind of self-cleaning automobile paint, the raw material includes the following components by mass percentage: self-made nano-titanium dioxide 36%, thermoplastic acrylic resin 12%, BYK161 dispersant 1.5%, BYK306 organosilicon leveling agent 0.5%, DEGUSSA-A200 anti-settling agent 4%, TINUVIN 384-2 UV absorber 2%, butyl acetate 22%, ethyl acetate 16%, propylene glycol methyl ether acetate 6%. Among them, the thermoplastic acrylic resin is a thermoplastic acrylic resin with a solid content of 40% and a molecular weight of 80,000, and its Tg is 92°C.

[0050] (1) Mix silicone leveling agent with butyl acetate and propylene glycol methyl ether acetate, stir at 300r / min for 10min, then add self-made nano-titanium dioxide, continue stirring at 300r / min for 30min; after stirring evenly, Soak for 3 hours, so that the organic silicon leveling agent is fully adsorbed on the surface of nano-titanium dioxide, and a slurry is prepared.

[0051] (2) Add the dispersant to the thermo...

Embodiment 2

[0055] A kind of self-cleaning automobile paint, the raw material includes the following components by mass percentage: self-made nano-titanium dioxide 38%, thermoplastic acrylic resin 13.5%, BYK163 dispersant 2.0%, BYK331 organosilicon leveling agent 0.5%, DEGUSSA-A200 anti-settling agent 4%, TINUVIN 123 UV absorber 2%, butyl acetate 20%, ethyl acetate 15%, propylene glycol methyl ether acetate 5%. Wherein, the thermoplastic acrylic resin is a thermoplastic acrylic resin with a solid content of 45% and a molecular weight of 90,000, and its Tg is 94°C.

[0056] (1) Mix silicone leveling agent with butyl acetate and propylene glycol methyl ether acetate, stir at 500r / min for 5min, then add self-made nano-titanium dioxide, continue stirring at 500r / min for 20min; after stirring evenly, Soak for 3.6 hours, so that the organic silicon leveling agent is fully adsorbed on the surface of nano-titanium dioxide, and a slurry is prepared.

[0057] (2) Add the dispersant to the thermopl...

Embodiment 3

[0061] A kind of self-cleaning automobile coating, raw material comprises the following components by mass percentage: self-made nano-titanium dioxide 35%, thermoplastic acrylic resin 11%, EFKA-4010 dispersant 1.5%, Tego Glid 100 organosilicon leveling agent 0.8%, DEGUSSA- A200 anti-settling agent 3.5%, TINUVIN 384-2 ultraviolet absorber 2.2%, butyl acetate 24%, ethyl acetate 16%, propylene glycol methyl ether acetate 6%. Wherein, the thermoplastic acrylic resin is a thermoplastic acrylic resin with a solid content of 50%, a molecular weight of 100,000, and a Tg of 95°C.

[0062] (1) Mix silicone leveling agent with butyl acetate and propylene glycol methyl ether acetate, stir at 400r / min for 8min, then add self-made nano-titanium dioxide, continue stirring at 400r / min for 25min; after stirring evenly, Soak for 4 hours, so that the organic silicon leveling agent is fully adsorbed on the surface of nano-titanium dioxide, and a slurry is prepared.

[0063] (2) Add the dispersan...

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Abstract

The invention relates to an automobile coating, in particular to a self-cleaning automobile coating and a preparation method of the self-cleaning automobile coating. The coating is prepared from the following components in percentage by weight: 10 to 30 percent of thermoplastic acrylic resin, 0.5 to 2 percent of dispersing agent, 0.2 to 2 percent of organic silicon flatting agent, 2 to 8 percent of anti-settling agent, 0.5 to 4 percent of ultraviolet light absorber, 10 to 30 percent of butyl acetate, 10 to 30 percent of ethyl acetate and 5 to 20 percent of propylene glycol methyl ether acetate. Compared with the prior art, the self-cleaning automobile coating has the advantages that the self-cleaning automobile coating has good self-cleaning performance due to unique wettability, and in addition, the prepared coating also shows excellent anti-fog, anti-fouling, anti-icing, anti-corrosion and other performances, so that the use requirements of automobiles can be met, and the requirements of low-carbon life can also be met.

Description

technical field [0001] The invention relates to an automobile paint, in particular to a self-cleaning automobile paint and a preparation method thereof. Background technique [0002] Self-cleaning coating refers to a surface in which pollutants or dust on the coating surface can automatically fall off or be degraded under the action of external forces such as gravity, rain or wind. According to the self-cleaning mechanism and surface hydrophilic and hydrophobic properties of self-cleaning coatings, self-cleaning coatings can be simply divided into the following three categories: superhydrophilic self-cleaning coatings, superhydrophobic self-cleaning coatings and self-cleaning coatings with photocatalytic activity. layer. [0003] Super-hydrophilic self-cleaning coating means that the surface of the coating has a contact angle of less than 5° to water. Rainwater can form a water film on the surface of the coating, and pollutants are carried away by the water film, so as to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/48C09D7/61
CPCC09D133/00C09D7/48C09D7/61C08K2201/011C08K3/22C08K7/26C08K5/3435C08K5/3475
Inventor 朱忠敏叶小明
Owner DONGLAI COATING TECH SHANGHAI
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