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Integrated wear-resistant superamphiphobic coating and preparation method thereof

A super-amphiphobic coating technology, applied in coatings, anti-corrosion coatings, polyurea/polyurethane coatings, etc., can solve the problems of high process requirements of super-amphiphobic coatings, poor wear resistance of coatings, and no self-healing properties. To achieve the effect of strong durability, improved bonding performance, and simple use method

Active Publication Date: 2017-05-31
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the technical problems of high superamphiphobic coating process requirements, poor coating wear resistance, no self-repairability and cumbersome repair process in the above-mentioned prior art, an object of the present invention is to provide an integrated wear-resistant superamphiphobic coating. Amphiphobic coating and preparation method thereof

Method used

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  • Integrated wear-resistant superamphiphobic coating and preparation method thereof
  • Integrated wear-resistant superamphiphobic coating and preparation method thereof
  • Integrated wear-resistant superamphiphobic coating and preparation method thereof

Examples

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Embodiment 1

[0050] Embodiment 1: general-purpose integrated wear-resistant superamphiphobic coating (polystyrene) preparation process, the steps are as follows:

[0051] 1) Nano-scale silica and 1H, 2H, 2H-perfluorooctylmethyldichlorosilane are mixed at a mass ratio of 1:1, and acetone is added to dissolve into a gel. The mass of nano-scale silica and acetone Ratio of 2:4, ultrasonic dispersion for 15 minutes;

[0052] 2) Mix polydimethylsiloxane and tert-butyl acetate at a mass ratio of 1:4, stir magnetically, heat at 40°C, stir at 900r / min, and stir for 0.8h;

[0053] 3) Add BYK3700 nano-auxiliary to propylene glycol methyl ether acetate, the mass ratio of propylene glycol methyl ether acetate and BYK3700 nano-auxiliary is 1:5, magnetic stirring, heating temperature is 80°C, stirring speed is 900r / min, stirring for 1h ;

[0054] 4) Put the substances obtained in the above three steps at a weight ratio of 2:5:15, put the above three substances into a three-necked bottle and mix them, i...

Embodiment 2

[0062] Embodiment 2: general-purpose integrated wear-resistant superamphiphobic coating (polystyrene) preparation process, the steps are as follows:

[0063] The technical solution adopted by the present invention to achieve the above object is to provide a general-purpose integrated wear-resistant superamphiphobic coating preparation process, including the following steps:

[0064] 1) Nano-scale silica and hexamethylenedisiloxane are mixed in a mass ratio of 1:2, and acetone is added to dissolve into a gel. The mass ratio of nano-scale silica to acetone is 2:9, and ultrasonic Disperse for 10 minutes;

[0065] 2) Mix polydimethylsiloxane and tert-butyl acetate at a mass ratio of 1:2, stir magnetically, heat at 60°C, stir at 800r / min, and stir for 0.5h;

[0066] 3) Add BYK3700 nano additives to propylene glycol methyl ether acetate, the mass ratio of propylene glycol methyl ether acetate and BYK3700 nano additives is 1:6, magnetic stirring, heating temperature 60°C, stirring s...

Embodiment 3

[0074] Embodiment 3: general-purpose integrated wear-resistant super-amphiphobic coating (EPDM rubber) preparation process, the steps are as follows:

[0075] The technical solution adopted by the present invention to achieve the above object is to provide a general-purpose integrated wear-resistant superamphiphobic coating preparation process, including the following steps:

[0076] 1) Mix nanoscale titanium dioxide with 1H, 2H, 2H-perfluorooctylmethyldichlorosilane in a mass ratio of 1:3, add acetone to dissolve into a colloid, and the mass ratio of nanoscale silicon dioxide to acetone is 5:19, ultrasonic dispersion for 15 minutes;

[0077] 2) Mix polydimethylsiloxane and tert-butyl acetate in a mass ratio of 1:4, stir magnetically, heat at 75°C, stir at a rate of 1100r / min, and stir for 1.5h;

[0078] 3) Add BYK3700 nano additives to N-methylpyrrolidone, the mass ratio of N-methylpyrrolidone and BYK3700 nano additives is 1:4, magnetic stirring, heating temperature 90 ° C, ...

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Abstract

The invention discloses an integrated wear-resistant superamphiphobic coating and a preparation method thereof. The modified silica (titanium dioxide) particles and a modified base material (such as polytetrafluoroethylene, polystyrene, ethylene propylene diene monomer and polyurethane) undergo a cross-linked polymerization reaction. Through chemical grafting copolymerization reaction connection, organic and inorganic materials have better compatibility. Through shear dispersion, micron- and nano-structure superamphiphobic micro-nano-spheres are obtained by copolymerization of nano-modified particles (functional modified particles such as silica and titanium dioxide particles) and micron-sized base materials (functional base materials such as polytetrafluoroethylene, polystyrene, ethylene propylene diene monomer and polyurethane). The preparation method greatly improves the adhesion between the coating and the base. The coating has strong durability.

Description

technical field [0001] The invention relates to the field of super-amphiphobic composite coatings, in particular to an integrated wear-resistant super-amphiphobic coating and a preparation method thereof. Background technique [0002] Through the efforts of scientific researchers, super-hydrophobic coatings are more common. The microcosmic rough structure of superhydrophobic coatings is mostly composed of micro / nano dual structures, and the mechanical stability is poor, which greatly limits the application of superhydrophobic coatings. Hydrophobic surfaces are of great significance for the practical application of superhydrophobic surfaces. However, in the practical application of superhydrophobic surfaces, there are still some problems to be solved urgently: [0003] (1) Factors such as high production cost and high heat treatment temperature of super-hydrophobic surfaces limit the application of super-hydrophobic coatings in wall coatings and some soft substrate material...

Claims

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Application Information

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IPC IPC(8): C09D125/06C09D175/04C09D123/16C09D127/18C09D5/08C09D7/12
CPCC08K3/22C08K3/36C08K9/06C08K2003/2241C08K2201/011C09D5/08C09D7/62C09D123/16C09D125/06C09D127/18C09D175/04
Inventor 郭凯吴亚平李辛庚王晓明闫风洁
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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