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Super-hydrophobic anti-icing and deicing coating with photothermal effect and preparation method thereof

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

Active Publication Date: 2021-05-28
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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  • Super-hydrophobic anti-icing and deicing coating with photothermal effect and preparation method thereof
  • Super-hydrophobic anti-icing and deicing coating with photothermal effect and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

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

[0051] S1. First weigh 0.05g of melanin nanoparticles and disperse them in 20g of ethyl acetate solution, then add 0.2g of PDMS prepolymer component A and 0.02g of curing agent component B in sequence, and stir for 2 hours at room temperature.

[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 a high temperature of 60° C. for 2 hours.

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

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

Embodiment 2

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

[0057] S1. First weigh 0.1g of melanin nanoparticles and disperse them in 20g of ethyl acetate solution, then add 0.2g of PDMS prepolymer component A and 0.02g of curing agent component B in sequence, and stir at room temperature for 2.25h.

[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 silicon dioxide 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 65° C. for 2.25 h.

[0060] The surface temperature of the superhydrophobic anti-icing coating with photothermal deicing performance can reach 63.8°C under a strong sunlight, and the contac...

Embodiment 3

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

[0063] S1. First weigh 0.2g of melanin nanoparticles and disperse them in 20g of ethyl acetate solution, then add 0.2g of PDMS prepolymer component A and 0.02g of curing agent component B in sequence, and stir 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 silicon dioxide and disperse it in 10 g of ethyl acetate solution, then spray it on a glass sheet with a distance of 15 cm between the nozzle and the substrate, and dry at 70° C. for 2.5 h.

[0066] The superhydrophobic anti-icing coating with photothermal deicing performance is a superhydrophobic antiicing coating with photothermal deicing performance according...

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Abstract

The invention discloses a super-hydrophobic anti-icing and deicing coating with a photothermal effect and a preparation method thereof. The preparation method comprises the following steps: preparing melanin nanoparticles with the photothermal effect from an ink bag; carrying out hydrophobization modification on SiO2 nano particles by using perfluorodecyl triethoxy silane, so as to prepare hydrophobic SiO2 nano particles; blending melanin nanoparticles and polydimethylsiloxane to prepare a spraying solution, and then spraying the spraying solution to a substrate to prepare the photo-thermal coating; finally, spraying the hydrophobic SiO2 nanoparticle dispersion liquid on the surface of the photo-thermal coating to obtain the super-hydrophobic anti-icing coating with the photo-thermal deicing performance. The coating shows excellent photo-thermal deicing performance and super-hydrophobic ice-resistant performance. The coating can be prepared by adopting a simple spraying method, and compared with a traditional preparation method and the traditional preparation method, the preparation process is simple, the method is easy to implement, the cost is low, and the coating is suitable for being popularized and used 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] It is a natural phenomenon that ice forms and accumulates on wires, aircraft, roads and other infrastructure and industrial products through frost, freezing rain, and condensation, which may cause serious safety problems and huge economic losses. For example, from January to February 2008, due to the joint influence of the cold air from the north and the warm and humid air from the south, many provinces in southern my country suffered from historically rare freezing weather. The accumulation of ice increased the weight of transmission lines, causing disconnection, twisting and collapse of electric towers, causing serious damage to the power system, causing economic losses of more than 110 billion yuan, and more t...

Claims

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Application Information

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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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