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A superhydrophobic anti-icing and deicing coating with photothermal effect and preparation method thereof

A photothermal effect, super-hydrophobic technology, applied in coatings and other directions, can solve problems such as insufficient anti-icing ability, achieve excellent super-hydrophobic performance, simple preparation process, and realize the effect of large-scale industrial production.

Active Publication Date: 2022-05-27
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a super-hydrophobic anti-icing and deicing coating with photothermal effect and its preparation method, which solves the problem of insufficient anti-icing ability of the anti-icing coating in the prior art at extremely low temperature. The problem is that the preparation method is simple and feasible, and can be produced on a large scale. The superhydrophobic coating prepared by this method has high-efficiency photothermal properties, and can effectively prevent and de-ice

Method used

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  • A superhydrophobic anti-icing and deicing coating with photothermal effect and preparation method thereof
  • A superhydrophobic anti-icing and deicing coating with photothermal effect and preparation method thereof

Examples

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Embodiment 1

[0050] A superhydrophobic anti-icing and deicing coating with photothermal effect and a preparation method thereof, comprising the following steps:

[0051] S1. First, 0.05g of melanin nanoparticles were weighed and dispersed in 20g of ethyl acetate solution, then 0.2g of PDMS prepolymer A component and 0.02g of curing agent B component were added in sequence, and stirred at room temperature for 2h.

[0052] S2. Then, spray the solution in step 1 on the glass sheet with a distance of 10 cm between the nozzle and the substrate, and cure at 60° C. for 2 hours.

[0053] S3. Weigh 0.1 g of hydrophobized modified silica and disperse it in 10 g of ethyl acetate solution, then spray it on a glass sheet with a distance between the nozzle and the substrate of 10 cm, and dry at 60° C. for 2 hours.

[0054] The superhydrophobic anti-icing coating with photothermal deicing performance can reach a surface temperature of 61.2°C under a strong sunlight irradiation, the contact angle of water...

Embodiment 2

[0056] A superhydrophobic anti-icing and deicing coating with photothermal effect and a preparation method thereof, comprising the following steps:

[0057] S1. First, 0.1 g of melanin nanoparticles were weighed and dispersed in 20 g of ethyl acetate solution, then 0.2 g of PDMS prepolymer A component and 0.02 g of curing agent B component were added in sequence, and stirred at room temperature for 2.25 hours.

[0058] S2. Then, spray the solution in step 1 on the glass sheet with a distance of 13 cm between the nozzle and the substrate, and cure at a high temperature of 65° C. for 2.25 hours.

[0059] S3. Weigh 0.1 g of hydrophobized modified silica and disperse it in 10 g of ethyl acetate solution, then spray it on a glass sheet with a distance of 13 cm between the nozzle and the substrate, and dry at a high temperature of 65° C. for 2.25 hours.

[0060] The superhydrophobic anti-icing coating with photothermal deicing performance can reach a surface temperature of 63.8°C un...

Embodiment 3

[0062] A superhydrophobic anti-icing and deicing coating with photothermal effect and a preparation method thereof, comprising the following steps:

[0063] S1. First, 0.2g of melanin nanoparticles were weighed and dispersed in 20g of ethyl acetate solution, then 0.2g of PDMS prepolymer A component and 0.02g of curing agent B component were added in sequence, and stirred at room temperature for 2.5h.

[0064] S2. Then, spray the solution in step 1 on the glass sheet with a distance of 15 cm between the nozzle and the substrate, and cure at a high temperature of 70° C. for 2.5 hours.

[0065] S3. Weigh 0.1 g of hydrophobized modified silica and disperse it in 10 g of ethyl acetate solution, then spray it on a glass sheet with a distance between the nozzle and the substrate of 15 cm, and dry at a high temperature of 70° C. for 2.5 hours.

[0066] The super-hydrophobic anti-icing coating with photothermal deicing performance of the present invention is a super-hydrophobic anti-ic...

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Abstract

The invention discloses a super-hydrophobic anti-icing and deicing coating with photothermal effect and a preparation method thereof, wherein melanin nanoparticles with photothermal effect are prepared from an ink sac; hydrophobically modified with perfluorodecyltriethoxysilane SiO 2 Nanoparticles, preparation of hydrophobic SiO 2 Nanoparticles; blend melanin nanoparticles with polydimethylsiloxane to prepare a spray solution, and then spray on the substrate to prepare a photothermal coating; then hydrophobized SiO 2 The nanoparticle dispersion is sprayed on the surface of the photothermal coating to obtain a superhydrophobic anti-icing coating with photothermal deicing performance. The coating exhibits excellent photothermal deicing performance and superhydrophobic anti-icing performance. The invention can be prepared by a simple spraying method, and compared with the traditional method and its preparation method, the preparation process is simple, the method is easy to implement, and the cost is low, so it is suitable for popularization and use in the industry.

Description

technical field [0001] The invention belongs to the technical field of photothermal superhydrophobic materials, in particular to a superhydrophobic anti-icing and deicing coating with photothermal effect and a preparation method thereof Background technique [0002] The formation and accumulation of ice on infrastructure and industrial products such as power lines, airplanes, and roads through frost, freezing rain, and condensation are natural phenomena that can cause serious safety problems and huge economic losses. For example, from January to February in 2008, under the combined influence of the cold air from the north and the warm and humid air from the south, many provinces in southern my country were affected by the rare freezing weather in history. The accumulation of ice increases the weight of transmission lines, causing disconnection, twisting and collapse of electrical towers, causing serious damage to the power system, causing economic losses of more than 110 bil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D7/41C09D1/00
CPCC09D183/04C09D7/41C09D1/00C08K5/0041
Inventor 薛朝华李回归贾顺田
Owner SHAANXI UNIV OF SCI & TECH
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