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Lotus leaf effect self cleaning fluorocarbon paint

A technology of fluorocarbon coating and lotus leaf effect, applied in the direction of coating, etc., can solve the problems of dust and suspended particle content pollution, poor air quality, etc., and achieve excellent mechanical properties and gloss, reduced rolling angle, and high weather resistance Effect

Inactive Publication Date: 2011-05-18
鳄鱼制漆(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the air quality in my country is generally poor, especially the serious pollution of dust and suspended particles, which is limited to the complexity of different regional environments, climatic conditions and pollution sources. The above-mentioned technologies still have certain incompatibility and limitations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 400kg of silicone-modified fluororesin, 4kg of wetting and dispersing agent and 60kg of solvent into the kettle, stir well and then add 100kg of rutile titanium dioxide. Leveling agent, 2.5kg defoamer, 1.5kg wetting and dispersing agent and 12kg nanometer fumed silica, stirred for 1 hour, filtered and discharged to obtain component A.

[0018] Add 80kg of HDI trimer curing agent and 20kg of solvent into the kettle, stir evenly, and filter out the material to obtain component B.

[0019] When used, according to the parts by weight of component A: component B = 5:1, stir evenly before use.

[0020] The lotus leaf effect self-cleaning fluorocarbon coating film obtained in Example 1 has a water contact angle of 102°, no change in aging resistance for 5000 hours, and no change in salt spray resistance for 1000 hours.

Embodiment 2

[0022] Add 400kg of silicone modified fluororesin, 30kg of solvent, 1kg of leveling agent, 1kg of defoamer, 2kg of wetting and dispersing agent and 32kg of nano fumed silica into the kettle, stir for 2 hours, and filter out the material to obtain component A .

[0023] Add 40kg of HDI trimer curing agent and 10kg of solvent into the kettle, stir evenly, and filter out the material to obtain component B.

[0024] When used, according to the parts by weight of component A: component B = 5:1, stir evenly before use.

[0025] The lotus leaf effect self-cleaning fluorocarbon coating film obtained in Example 2 has a water contact angle of 125°, no change in aging resistance for 5000 hours, and no change in salt spray resistance for 1000 hours.

Embodiment 3

[0027] Add 400kg of silicone modified fluororesin, 10kg of wetting and dispersing agent and 90kg of solvent into the kettle, and then add 80kg of rutile titanium dioxide, 25kg of kaolin, 10kg of talcum powder, and 5kg of carbon black before pre-dispersing, then sand mill and grind When the fineness is ≤25μm, add 6kg of leveling agent, 3.5kg of defoamer, 1.5kg of wetting and dispersing agent and 24kg of nano fumed silica, stir for 2 hours at medium intensity, and filter out the material to obtain component A.

[0028] Add 120kg of IPDI trimer curing agent and 30kg of solvent into the kettle, stir evenly, filter and discharge to obtain component B.

[0029] When used, according to the parts by weight of component A: component B = 5:1, stir evenly before use.

[0030] The lotus leaf effect self-cleaning fluorocarbon coating film obtained in Example 3 has a water contact angle of 113°, no change in aging resistance for 5000 hours, and no change in salt spray resistance for 1000 ho...

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Abstract

The present invention belongs to the field of self-cleaning coating technology. In the concrete, it relates to a self-cleaning fluorocarbon coating with lotus leaf effect. It is made up by using organic silicon modified fluorocarbon resin, solidifying agent, hydrophobic particles, pigment, filling material, adjuvant and solvent according to the mixing ratio of 1:0.1-0.3:0.03-0.1:0-0.36:0-0.1:0.01-0.05:0.1-0.3 through a certain preparation process.

Description

technical field [0001] The invention belongs to the technical field of self-cleaning coatings, in particular to a lotus-leaf-effect self-cleaning fluorocarbon coating. technical background [0002] Fluorocarbon coating is a coating with fluorine-containing resin as the main film-forming substance. Its main feature is that the F—C bond contained in the resin is difficult to break under the action of light and heat, showing super pollution resistance, weather resistance and chemical resistance. Fluorocarbon coatings containing fluorine resins have been widely used in construction, chemical industry, machinery, aerospace, household goods and other fields. [0003] Insufficient stain resistance of coatings is a common problem in exterior wall coatings, and it is also a prominent technical problem that restricts the popularization and application of exterior wall coatings in our country. Fluorocarbon resins with low surface energy, silicone-modified acrylic resins or additives ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D201/04C09D5/00
Inventor 韩冬吕侠卢斯亮李艳萍
Owner 鳄鱼制漆(上海)有限公司
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