A porous superhydrophobic-lubricating composite anti-icing coating and its preparation method

A technology of super-hydrophobic coating and porous structure, applied in the direction of coating, polyurea/polyurethane coating, etc., can solve the problems of loss of anti-icing effect, increase of adhesion, etc., achieve excellent hydrophobicity, low equipment requirements, easy to obtain Effect

Active Publication Date: 2021-09-10
西安华特节能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difficulty of this solution is to improve the durability of the anti-icing material, because as the number of uses increases, the amount of lubricating fluid on the surface will decrease, the adhesion will increase, and the anti-icing effect will be lost

Method used

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  • A porous superhydrophobic-lubricating composite anti-icing coating and its preparation method
  • A porous superhydrophobic-lubricating composite anti-icing coating and its preparation method
  • A porous superhydrophobic-lubricating composite anti-icing coating and its preparation method

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preparation example Construction

[0019] The preparation method of described anti-icing coating comprises the following steps:

[0020] (1) First, low molecular polybutadiene, polyacryl, water-based polyurethane, alkyl ketene dimerization, and heptane (solvent) are mixed according to the weight ratio of 1:2-5:5-6:3-6: 7-9 After mixing, heat and stir at 20-30°C for 1 hour, add toluenesulfonylhydrazide with a total mass of 20-50wt.% of the mixture, foam at 50-80°C for 1 hour, and form a film by spraying at room temperature Finally, dry at 40-60°C to obtain a superhydrophobic coating with a foamed porous structure;

[0021] (2) Next, adding nano-graphene with a particle size of 70-100nm according to the weight ratio of 1-2.5wt.% into the hyaluronic acid (HA) lubricating fluid, and obtaining the bionic joint lubricating fluid after ultrasonic dispersion;

[0022] (3) Finally, the surface of the superhydrophobic coating with a foamed porous structure is injected with a nanographene-modified biomimetic joint lubric...

Embodiment 1

[0025] (1) Mix low-molecular polybutadiene, polyacryloyl, water-based polyurethane, alkyl ketene dimer, and heptane in a mass ratio of 1:3:5:3:7, then heat and stir at 25°C After 1h, add 20wt.% of the total mass of the mixture tosylhydrazide, foam at 70°C for 1 hour, spray with a spray gun at room temperature, and dry at 50°C to obtain a superhydrophobic-lubricating composite anti-icing foam with a porous structure coating;

[0026] (2) adding nano-graphene with a particle size of 90nm into the hyaluronic acid (HA) lubricating fluid according to the weight ratio of 2wt.%, and obtaining the modified bionic joint lubricating fluid after ultrasonic dispersion;

[0027] (3) Using a micro-syringe, inject nano-graphene modified hyaluronic acid (HA) 0.3g / cm 2 Finally, a composite coating is obtained.

[0028] The prepared superhydrophobic-lubricating composite anti-icing coating with foamed porous structure has a water droplet contact angle of 120°, such as figure 1 Shown; The obt...

Embodiment 2

[0030] (1) Mix low-molecular polybutadiene, polyacryloyl, water-based polyurethane, alkyl ketene dimer, and heptane in a mass ratio of 1:4:6:5:8, then heat and stir at 30°C 1h, add 45wt.% of toluenesulfonylhydrazide and foam at 75°C for 1 hour, spray with a spray gun at room temperature, and dry at 40°C to obtain a superhydrophobic coating with a foamed porous structure;

[0031] (2) adding nano-graphene with a particle size of 80nm to a hyaluronic acid (HA) lubricating fluid according to a weight ratio of 1.5wt.%, and obtaining a modified bionic joint lubricating fluid after ultrasonic dispersion;

[0032] (3) Using a micro-syringe, inject nano-graphene in hyaluronic acid (HA) 0.4g / cm 2 Finally, a composite coating is obtained.

[0033] The prepared superhydrophobic-lubricating composite anti-icing coating with foamed porous structure has a water droplet contact angle of 130°, such as figure 2 Shown; the resulting synovial fluid-injected composite coating has a contact are...

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Abstract

The invention belongs to the field of new materials, and in particular relates to a superhydrophobic-lubricating composite anti-icing coating with a porous structure and a preparation method thereof. The coating is composed of a foaming porous super-hydrophobic coating and a bionic joint lubricating fluid, and the super-hydrophobic-lubricating composite anti-icing coating of the super-hydrophobic foaming porous structure is composed of low-molecular polybutadiene, polyacryl, It is prepared by compounding water-based polyurethane and alkyl ketene dimer and then heating and foaming with p-toluenesulfonyl hydrazide. The blending composition of the bionic joint lubricating fluid and the low-molecular polybutadiene of the obtained coating can significantly reduce the adhesion of the ice layer, so that the adhesion of the ice layer is reduced to below 5kPa, and has an excellent anti-ice effect.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a superhydrophobic-lubricating composite anti-icing coating with anti-icing effect. Background technique [0002] Freezing and cold weather will bring hundreds of millions of losses to our country every year, involving delays and losses in aerospace transportation, public transportation, infrastructure facilities, and even power transportation. The icing of the line will make the timely dredging of the power sector extremely challenging. As a big country with a large land and abundant resources, the impact of icing on the line is among the top in the world. In addition, the impact of icing on aircraft wings is also decisive. Severe icing can even cause the wings to stall and cause air crashes. In terms of roads, the improvement of travel safety also starts with the anti-skid and anti-icing of tires and rails. Icing has brought huge hidden dangers to people's property an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D147/00C09D7/65C08J9/10C08J9/36C08L75/04C08L47/00C08K5/07
CPCC08J9/0023C08J9/0061C08J9/105C08J9/36C08J2203/04C08J2375/04C08J2447/00C08L2205/03C09D175/04C09D7/65C08L47/00C08K5/07
Inventor 王楠张治富张哲唐玲玲
Owner 西安华特节能技术有限公司
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