Anti-corrosion anti-icing wear-resistant super-hydrophobic coating and preparation method thereof

A super-hydrophobic coating and anti-icing technology, applied in anti-corrosion coatings, coatings, polyurea/polyurethane coatings, etc., can solve the problems of easy freezing of water vapor, easy corrosion of metal substrate surfaces, etc., and achieve low water adhesion , lower surface energy, excellent corrosion resistance

Active Publication Date: 2021-06-04
NORTHWEST UNIV(CN)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides an anti-corrosion, anti-icing and wear-resistant super-hydrophobic coating and a preparation method thereof, which solves the problems that the surface of metal substrates is easy to corrode and water vapor is easy to freeze, and at the same time provides a super-hydrophobic coating with excellent hydrophobicity and wear resistance. metal surface coating

Method used

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  • Anti-corrosion anti-icing wear-resistant super-hydrophobic coating and preparation method thereof
  • Anti-corrosion anti-icing wear-resistant super-hydrophobic coating and preparation method thereof
  • Anti-corrosion anti-icing wear-resistant super-hydrophobic coating and preparation method thereof

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preparation example Construction

[0035] The invention provides a method for preparing an anti-corrosion, anti-icing and wear-resistant super-hydrophobic coating, which is characterized in that it comprises the following steps:

[0036] Step 1, modified nano-SiO 2 Particle preparation

[0037] The nano-SiO 2 The particles were immersed in a modified solution of fluorosilane-absolute ethanol and modified at room temperature, and the modified nano-SiO 2 Particles are dried and ground to disperse;

[0038] Preparation of film-forming liquid: dissolving thermoplastic polyurethane elastomer rubber (TPU) in N,N-dimethylformamide (DMF) to prepare TPU / DMF film-forming liquid;

[0039] Step 2, coating

[0040] Scrape-coat the TPU / DMF film-forming solution in step 1 on the surface of the pretreated substrate, dry and cool, and then repeat the scrape-coat several times to form a bottom film layer on the surface of the metal substrate, that is, the TPU coating;

[0041] Step 3, preparation of anti-corrosion, anti-ici...

Embodiment 1

[0046] A preparation method for anti-corrosion, anti-icing and wear-resistant superhydrophobic coating, such as figure 1 shown, including the following steps:

[0047] Step 1, modified nano-SiO 2 Particle preparation: 1g of nano-SiO with a particle size of 10nm 2 The particles were immersed in 20g of 0.8wt% trimethoxy (1H, 1H, 2H, 2H-heptadecafluorodecyl) silane-absolute ethanol modification solution and stirred at room temperature. After modification for 0.5h, the modified nano-SiO 2 The particles were dried in an oven at 90°C for 6 hours, and after drying, they were ground and dispersed to obtain modified nano-SiO with a particle size of 20nm. 2 particle;

[0048] Step 2, preparation of TPU / DMF film-forming solution: dissolve thermoplastic polyurethane elastomer rubber (TPU 5377A) in N,N-dimethylformamide (DMF), and configure TPU / DMF with a concentration of 0.35g / ml Film-forming liquid;

[0049] Step 3, pretreatment of the base material: 45# steel (50×80mm) is polished...

Embodiment 2

[0053] A preparation method for anti-corrosion, anti-icing and wear-resistant superhydrophobic coating, such as figure 1 shown, including the following steps:

[0054] Step 1, modified nano-SiO 2 Particle preparation: 1g of nano-SiO with a particle size of 20nm 2 Particles were immersed in 25g of 1.5wt% trimethoxy (1H, 1H, 2H, 2H-heptadecafluorodecyl) silane-absolute ethanol modification solution and stirred at room temperature. After modification for 1 hour, the modified nano-SiO 2 The particles were dried in an oven at 110°C for 4 hours. After drying, they were ground and dispersed to obtain modified nano-SiO with a particle size of 40nm. 2 particle;

[0055] Step 2, preparation of TPU / DMF film-forming solution: dissolve thermoplastic polyurethane elastomer rubber (TPU 5377A) in N,N-dimethylformamide (DMF), and configure TPU / DMF with a concentration of 0.3g / ml Film-forming liquid;

[0056] Step 3, pretreatment of the substrate: use 400-mesh sandpaper to polish 45# stee...

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Abstract

The invention discloses an anti-corrosion anti-icing and wear-resistant super-hydrophobic coating and a preparation method thereof, and belongs to the technical field of metal protection materials, and the preparation method comprises the following steps: preparation of modified nano SiO2 particles, preparation of TPU/DMF film forming liquid, pretreatment of base material film coating, and preparation of the anti-corrosion, anti-icing and wear-resistant super-hydrophobic coating. The prepared coating has excellent hydrophobicity, corrosion resistance, icing resistance and wear resistance, the safety risk of equipment and components is effectively reduced, and the service life is prolonged; the preparation method is simple, can realize industrial production, and has a good market prospect.

Description

technical field [0001] The invention belongs to the technical field of metal protection materials, and in particular relates to an anti-corrosion, anti-icing and wear-resistant super-hydrophobic coating and a preparation method thereof. Background technique [0002] Metal materials are the most widely used metal materials in modern society and play a very important role in human civilization and development. However, metal materials are easy to react with the surrounding medium, resulting in metal corrosion. Once the metal is corroded, its performance will be greatly reduced. Its corrosion protection is the prerequisite for the safe use of various equipment, steel components, pipelines, etc., especially steel. The largest amount of metal material. The economic loss caused by metal corrosion can reach hundreds of billions of yuan every year, and it also causes waste of resources, delays technological development, and even damages personal health. [0003] In addition, the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/08C09D7/62
CPCC08K2201/005C08K2201/011C09D5/08C09D175/04C09D7/62C09D7/70C08K9/06C08K7/26
Inventor 胡军石佳坤谭远刘喻波薛静静宋卫兵曹晓飞
Owner NORTHWEST UNIV(CN)
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