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Preparation method of anti-icing durable super-hydrophobic coating layer

A super-hydrophobic coating and anti-icing technology, applied in coatings, epoxy resin coatings, sustainable manufacturing/processing, etc., can solve the problems of fragile micro-nano structures, poor mechanical stability, and easy damage on super-hydrophobic surfaces , to achieve good industrial prospects, stable mechanical properties, simple and easy to obtain the effect of cost

Active Publication Date: 2022-01-28
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, durability is always a thorny issue due to the fragile micro-nanostructure of the superhydrophobic surface and poor mechanical stability.

Method used

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  • Preparation method of anti-icing durable super-hydrophobic coating layer
  • Preparation method of anti-icing durable super-hydrophobic coating layer
  • Preparation method of anti-icing durable super-hydrophobic coating layer

Examples

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Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method for an anti-icing durable superhydrophobic coating, comprising the following specific steps:

[0037] In this implementation case, a 6061 aluminum alloy plate of 40mm×40mm×1mm was selected as the base material, cleaned with acetone, deionized water and ethanol, dried and placed on the spraying platform;

[0038] Mix 3g of E-51 epoxy resin with 7g of methylvinyl MQ silicone resin, measure 15mL of butyl acetate as the first solvent to disperse the mixed resin evenly, and stir for 1 hour with a magnetic stirrer to obtain a mixed resin solution;

[0039] Weigh 2.5g of silica particles according to the mass ratio of composite silica particles to mixed resin of 1:4, and mix them with silica particles of 7-40nm and 200-500nm in a ratio of 7:3. Use 25mL of ethanol solution as the second solvent to disperse the silica particles evenly, and add 1mL of ammonia water to the dispersion system. Using a magnetic stirrer to stir for 2 hours to obtain a particle co...

Embodiment 2

[0058] A preparation method for an anti-icing durable superhydrophobic coating, comprising the following specific steps:

[0059] In this implementation case, a 20mm×20mm×1mm wooden board was selected as the base material, cleaned with acetone, deionized water and ethanol, dried and placed on the spraying platform;

[0060] Mix 4g of NPEF-170 epoxy resin with 4g of methylphenylpolysiloxane resin, measure 20mL of ethyl acetate as the first solvent to disperse the mixed resin evenly, and stir for 2h with a magnetic stirrer to obtain a mixed resin solution;

[0061] Weigh 1.6g of silica particles according to the mass ratio of composite silica particles to mixed resin of 1:5, and mix them with silica particles of 7-40nm and 200-500nm in a ratio of 2:1. Use 10 mL of ethanol solution as the second solvent to disperse the silica particles evenly, and add 0.3 mL of ammonia water to the dispersion system. Using a magnetic stirrer to stir for 1 h to obtain a particle composite suspens...

Embodiment 3

[0065] A preparation method for an anti-icing durable superhydrophobic coating, comprising the following specific steps:

[0066] In this implementation case, a 60mm×40mm×0.5mm tinplate plate was selected as the base material, cleaned with acetone, deionized water and ethanol, dried and placed on the spraying platform;

[0067] Mix 2g of E-51 epoxy resin with 10g of methylphenylpolysiloxane resin, measure 20mL of butyl acetate as the first solvent to disperse the mixed resin evenly, and stir for 3 hours with a magnetic stirrer to obtain a mixed resin solution;

[0068] Weigh 3.6g of silica particles according to the mass ratio of composite silica particles to mixed resin of 3:10, and mix them with silica particles of 7-40nm and 200-500nm in a ratio of 10:1. Use 24mL of ethanol solution as the second solvent to disperse the silica particles evenly, and add 1.2mL of ammonia water to the dispersion system. Using a magnetic stirrer to stir for 3 hours to obtain a particle composi...

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Abstract

The invention provides a preparation method of an anti-icing durable super-hydrophobic coating layer, and belongs to the technical field of preparation of super-hydrophobic coating layers. The method comprises the following steps: selecting and cleaning a substrate; preparing an epoxy resin and organic silicon resin mixed solution and a nano-scale and submicron-scale silicon dioxide particle composite suspension; mixing the two solutions, conducting heating to evaporate a part of the solvent, and adding a curing agent to obtain a super-hydrophobic coating; and spraying the coating to the surface of a base material and conducting curing to obtain a durable super-hydrophobic coating layer. The surface obtained through spraying has a micro-nano composite structure, the hydrophobic silicon dioxide particles reduce the surface energy, the surface contact angle is larger than 150 degrees, and the super-hydrophobic state is achieved. According to the method, the super-hydrophobic coating layer can be prepared on the surfaces of various base materials in a large area, and the coating layer has good wear resistance, strong adhesive force with a substrate and excellent anti-icing performance.

Description

technical field [0001] The invention belongs to the technical field of superhydrophobic coating preparation, and relates to a preparation method of a durable superhydrophobic coating for anti-icing. Background technique [0002] The problem of icing and frosting has seriously affected people's daily life and industrial production, and in serious cases will pose a huge threat to our lives and social security. For example, the problem of icing has become one of the main reasons for aircraft crashes. In the past three decades alone, there were as many as 803 flight accidents in the United States due to aircraft icing, and the probability of air crashes exceeded 15%. In addition, surface icing has a huge impact on many aspects such as polar exploration, ocean development, and long-distance power transmission. Therefore, the delay of surface icing and the removal of ice accumulation are crucial. The commonly used deicing and anti-icing methods in engineering mainly include ther...

Claims

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Application Information

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IPC IPC(8): C09D183/07C09D163/02C09D183/04C09D163/00C09D7/61
CPCC09D183/04C09D7/61C09D7/70C08K2201/011C08K2201/005C08L63/00C08K7/26C08K3/36Y02P20/10
Inventor 刘亚华李天然王世许冯诗乐
Owner DALIAN UNIV OF TECH
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