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A superhydrophobic anti-icing coating for active photothermal deicing, coating and its preparation and application

An active light and super-hydrophobic technology, applied in the coating and other directions, can solve the problems of rough structure damage, difficult to apply in a large area, and the tipping of utility poles, etc., to achieve the effect of prolonging the freezing time, easy to control, and reducing adhesion

Active Publication Date: 2020-07-28
广州市矽友新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2008, the southern ice disaster caused by the cold wave brought more than 150 billion losses to the country. In some areas, electric wires, cables and telephone lines were crushed due to heavy loads due to freezing, and several kilometers or even tens of kilometers of utility poles fell in rows. , resulting in interruption of power transmission and communication, seriously affecting local industrial and agricultural production
[0003] Superhydrophobic anti-icing coatings with rough structures are considered ideal anti-icing materials due to their high contact angles and low contact hysteresis to water, but the mechanical durability of superhydrophobic during icing / deicing processes Deterioration, rough structure is damaged
Superhydrophobic anti-icing materials still need to be improved
Moreover, the existing anti-icing materials have disadvantages such as complex preparation process, single function, and difficulty in large-scale application.

Method used

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  • A superhydrophobic anti-icing coating for active photothermal deicing, coating and its preparation and application
  • A superhydrophobic anti-icing coating for active photothermal deicing, coating and its preparation and application
  • A superhydrophobic anti-icing coating for active photothermal deicing, coating and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh 20 mg of carboxylated multi-walled carbon nanotubes (CNTs, produced by Nanjing Xianfeng Nano Material Technology Co., Ltd., average diameter: 100 nm, length: 10-20 microns, purity: 95%), silicon carbide micropowder (SiC, Shandong Jin Produced by Mengxin Material Co., Ltd., 2000 mesh, purity: 95%), 10 mg was added to 100 ml of absolute ethanol, and 2 ml of ethyl orthosilicate (produced by Shanghai Macklin Biochemical Co., Ltd., purity: 98%) was measured. 100 microliters of perfluorodecyltrimethoxysilane (manufactured by Shanghai Macklin Biochemical Co., Ltd., purity: 97%) was added to the above-mentioned absolute ethanol, and ultrasonically dispersed for 30 minutes to obtain a suspension, that is, a coating.

[0034] Use acetic acid-vinyl ester (EVA, produced by Arkema, France, brand EMB 01027A) as the substrate, and ultrasonically clean it for 30 minutes; The obtained suspension (i.e. coating) is vertically sprayed on the EVA substrate, and it is naturally dried a...

Embodiment 2

[0039] Take by weighing 20 milligrams of carboxylated multi-walled carbon nanotubes (same as Example 1), 40 milligrams of silicon carbide micropowder, join in 100 milliliters of absolute ethanol, measure 2 milliliters of ethyl orthosilicate, perfluorodecyltrimethoxy Add 100 microliters of silane into the above-mentioned absolute ethanol, and disperse it ultrasonically for 30 minutes to obtain a suspension, that is, a coating.

[0040] Adopt acetic acid-vinyl ester (EVA, with embodiment 1) as base material, ultrasonic cleaning 30min, with spray gun (same embodiment 1) the suspension liquid that makes is vertically sprayed on EVA substrate, under room temperature, air dry , the distance between the nozzle and the EVA substrate is 15cm, and a superhydrophobic anti-icing coating that can be used for active photothermal deicing can be obtained on the EVA surface.

[0041] The superhydrophobicity, anti-icing performance and photothermal performance test data of the functional coatin...

Embodiment 3

[0045] Take by weighing 20 milligrams of carboxylated multi-walled carbon nanotubes (same as Example 1), 100 milligrams of silicon carbide micropowder, join in 100 milliliters of absolute ethanol, measure 2 milliliters of ethyl orthosilicate, perfluorodecyltrimethoxy Add 100 microliters of silane into the above-mentioned absolute ethanol, and disperse it ultrasonically for 30 minutes to obtain a suspension, that is, a coating.

[0046] Adopt acetic acid-vinyl ester (EVA, with embodiment 1) as base material, ultrasonic cleaning 30min, with spray gun (same embodiment 1) the suspension liquid that makes is vertically sprayed on EVA substrate, under room temperature, air dry , the distance between the nozzle and the EVA substrate is 15cm, and a superhydrophobic anti-icing coating that can be used for active photothermal deicing can be obtained on the EVA surface.

[0047] The superhydrophobicity, anti-icing performance and photothermal performance test data of the functional coati...

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Abstract

The invention belongs to the technical field of material surface ice removal, and discloses a super-hydrophobic icing prevention coating with an active photothermal deicing function, a coating layer,a preparation method of the coating and an application of the coating. The coating mainly comprises silicon carbide micro-powder, carbon nano tubes, adhesives, hydrophobic agents and solvents, the weight ratio of the silicon carbide micro-powder to the carbon nano tubes is (0.5-20):1, the weight ratio of the adhesives to the carbon nano tubes is (40-100):1, the weight ratio of the hydrophobic agents to the carbon nano tubes is (4-10):1, the adhesives are provided with silane coupling agents, and the hydrophobic agents are provided with long-fluorine carbon chain silane coupling agents. The coating layer is prepared from the coating. The coating is applied to material surface icing prevention. The coated layer prepared from the icing prevention coating prolongs icing time of super-cooled liquid droplets, ice adhesion of the surface is reduced, rapid heating is achieved under irradiation of near-infrared light, rapid photothermal deicing is achieved, active photothermal deicing and passive icing prevention of the coating layer are combined, and rapid remote deicing is facilitated.

Description

technical field [0001] The invention relates to the technical field of material surface engineering, in particular to a superhydrophobic anti-icing coating for active photothermal deicing, a coating, a preparation method and application thereof. Background technique [0002] The formation and accumulation of ice can easily cause fatal damage to equipment, such as wires and cables, aircraft engines, wind turbines, etc. In 2008, the southern ice disaster caused by the cold wave brought more than 150 billion losses to the country. In some areas, electric wires, cables and telephone lines were crushed due to heavy loads due to freezing, and several kilometers or even tens of kilometers of utility poles fell in rows. , causing interruption of power transmission and communication, seriously affecting local industrial and agricultural production. The traditional deicing methods are mainly energy-intensive active deicing methods, such as electric heating and mechanical deicing. Now...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/61C09D183/02
CPCC08G77/02C09D4/00C09D7/61C09D7/70C09D183/02
Inventor 蒋果陈梁张水洞
Owner 广州市矽友新材料科技有限公司
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