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Preparation method of anti-wear easy-to-repair super-hydrophobic coating

A super-hydrophobic coating and wear-resistant technology, applied in the field of coatings, can solve the problems of complex process, high cost and high temperature, and achieve the effects of simple process, increased force area and good wear resistance.

Active Publication Date: 2015-06-03
山东天汇防水股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a method for preparing a wear-resistant and easy-to-repair superhydrophobic coating. For large-area workpieces or large-volume substrate defects, the coating preparation process is simple, the investment cost is low, easy to construct, and a super-hydrophobic coating with excellent wear resistance and easy repair can be obtained.

Method used

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  • Preparation method of anti-wear easy-to-repair super-hydrophobic coating
  • Preparation method of anti-wear easy-to-repair super-hydrophobic coating
  • Preparation method of anti-wear easy-to-repair super-hydrophobic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1): Weigh 4.0 grams of 300-mesh styrene-butadiene rubber powder, mix them evenly with 4.0 grams of epoxy resin E-44 and 32 grams of ethyl acetate, add 0.4 grams of diethylenetriamine dropwise, spray on a glass sheet, and store at 20°C Curing for 12 hours;

[0039] Step 2) Weigh 2.5 grams of epoxy resin E-44, 0.25 grams of diethylenetriamine, and 0.25 grams of amino silicone oil, dissolve them in 31.02 grams of ethyl acetate and 15.98 grams of ethanol to form a uniform solution, and spray the solution on the product obtained in step 1). The surface of the coating was cured at 20°C for 12 hours to obtain a superhydrophobic coating.

[0040]The contact angle of the above coating is 165°, and the coating is tested for wear resistance according to the American Society for Testing and Materials standard ASTM D 968-05 (the test for the determination of the wear resistance of organic coatings by falling sand abrasion method). The results show that the coating After 2 kg o...

Embodiment 2

[0042] Step 1): Weigh 4.0 grams of 400-mesh styrene-butadiene rubber powder, mix them evenly with 5.34 grams of epoxy resin E-44 and 17.33 grams of ethyl acetate, add 0.53 grams of diethylenetriamine dropwise, spray on a glass sheet, and store at 20°C Curing for 12 hours;

[0043] Process 2) Weigh 2.5 grams of epoxy resin E-44, 0.25 grams of diethylenetriamine, 0.25 grams of amino silicone oil dissolved in 15.51 grams of ethyl acetate and 6.49 grams of ethanol to form a uniform solution, spray the solution on the obtained The surface of the coating was cured at 20°C for 12 hours to obtain a superhydrophobic coating.

[0044] The contact angle of the above coating is 163°, and the coating is tested for wear resistance according to the American Society for Testing and Materials standard ASTM D 968-05 (the test for the determination of the wear resistance of organic coatings by falling sand abrasion method). The results show that the coating After 2 kg of quartz sand was dropped...

Embodiment 3

[0046] Step 1): Weigh 4.0 grams of 500-mesh styrene-butadiene rubber powder, mix them evenly with 8.0 grams of epoxy resin E-44 and 28 grams of ethyl acetate, add 0.8 grams of diethylenetriamine dropwise, spray on a glass sheet, and store at 20°C Curing for 12 hours;

[0047] Process 2) Weigh 2.5 grams of epoxy resin E-44, 0.25 grams of diethylenetriamine, 0.25 grams of amino silicone oil dissolved in 15.51 grams of ethyl acetate and 6.49 grams of ethanol to form a uniform solution, spray the solution on the obtained The surface of the coating was cured at 20°C for 12 hours to obtain a superhydrophobic coating.

[0048] The contact angle of the above coating is 164°. The coating is tested for wear resistance according to ASTM D 968-05 (the test for the determination of the wear resistance of organic coatings by falling sand abrasion method) of the American Society for Testing and Materials. The results show that the coating After 2 kg of quartz sand was dropped from a tube wi...

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Abstract

The invention discloses a preparation method of an anti-wear easy-to-repair super-hydrophobic coating. The preparation method comprises the following steps: 1, mixing butadiene styrene rubber powder, epoxy resin E-44, ethyl acetate and diethylenetriamine in a certain proportion, spraying on a substrate and curing at 20 DEG C; and 2, uniformly mixing epoxy resin E-44, ethyl acetate, diethylenetriamine and amino silicon oil and spraying on a coating obtained in the step 1 and curing at 20 DEG C to obtain the super-hydrophobic coating. According to the technical scheme, the preparation method has the advantages as follows: 1) the prepared coating has a wide application range and can be applied to glass, metal, wooden and ceramic substrates; 2) the prepared coating has an anti-wear property; 3) the prepared coating is easy to repair and the original super-hydrophobic property can be recovered through a simple spraying process after the coating is worn; 4) the production process can be implemented in a 20 DEG C temperature environment rather than a high temperature environment and therefore the production process has low requirement on the environment; and 5) the process is simple, the production cost is low, curing can be carried out at room temperature, and the production process can be used for processing the surface of a large-area and special-shaped test piece and can be applicable to outdoor construction.

Description

Technical field [0001] The present invention involves a preparation method of super -sparse coating that is easy to repair and is easy to repair, which belongs to the field of coating technology. Background technique [0002] Ultra -hydrophobic coating refers to coating with an contact angle with water drops greater than 150 °. Ultra -hydrophobic coating has the function of self -cleaning, waterproof, ice -proof, and snow -proof sticking. It has application prospects in daily life and industrial fields.When the superficial surface suffers from friction, in fact, the surface of the micron or nanometer on the surface is raised to carry the pressure and shear effect.The hydrophobic coating is damaged in response to the concentration of stress, which ultimately causes the ultra -hydrophobic function to fail.Therefore, ultra -hydrophobic surfaces are easy to suffer during use and failure. [0003] The Chinese invention patent of the authorized announcement number CN 101791608 B, the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D109/06C09D163/00C09D7/12B05D1/38B05D3/02
CPCB05D1/38B05D3/02C09D7/40C09D109/06C09D163/00C08L63/00C08L9/06C08L83/08
Inventor 王峰粟常红
Owner 山东天汇防水股份有限公司
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