Phase-change material lubricated airplane anti-icing surface implementation method

A technology of phase change materials and realization methods, applied in chemical instruments and methods, devices for coating liquid on the surface, coatings, etc., can solve the problems of surface anti-icing performance decline, lubricant consumption, failure, etc., and achieve extended use The effect of lifespan and consumption reduction

Pending Publication Date: 2020-10-30
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although lubricant-infused anti-icing surfaces have superior anti-icing performance, the injected lubricant will inevitably be consumed during the icing-deicing cycle, and the depletion of lubricant will significantly reduce the anti-icing performance of the surface. decline, or even complete failure

Method used

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  • Phase-change material lubricated airplane anti-icing surface implementation method
  • Phase-change material lubricated airplane anti-icing surface implementation method
  • Phase-change material lubricated airplane anti-icing surface implementation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment includes the following steps:

[0030] ①Add 80.00mL of acetonitrile, 0.40g of hexachlorocyclotriphosphazene and 1.16g of bisphenol AF into the round bottom flask in turn, and stir evenly at room temperature. After hexachlorocyclotriphosphazene and bisphenol AF were completely dissolved, 4.00 mL of triethylamine was added to the above-mentioned round bottom flask, and stirring was continued at room temperature. After the above mixture was fully mixed, the above round bottom flask was placed in a water bath at 50° C. and subjected to ultrasonic treatment at a power of 100 W for 5 hours. The obtained product was first washed with absolute ethanol, and then centrifuged, and the washing and centrifuging process was repeated three times; then the obtained solid was washed with deionized water, and then centrifuged, and the washing and centrifuging process was repeated three times. The final mixture was vacuum-dried at 60° C. for 10 hours, and then the complet...

Embodiment 2

[0037] This embodiment includes the following steps:

[0038] ①Add 80.00mL of acetonitrile, 0.40g of hexachlorocyclotriphosphazene and 1.16g of bisphenol AF into the round bottom flask in turn, and stir evenly at room temperature. After hexachlorocyclotriphosphazene and bisphenol AF were completely dissolved, 4.00 mL of triethylamine was added to the above-mentioned round bottom flask, and stirring was continued at room temperature. After the above mixture was fully mixed, the above round bottom flask was placed in a water bath at 50° C. and subjected to ultrasonic treatment at a power of 100 W for 5 hours. The obtained product was first washed with absolute ethanol, and then centrifuged, and the washing and centrifuging process was repeated three times; then the obtained solid was washed with deionized water, and then centrifuged, and the washing and centrifuging process was repeated three times. The final mixture was vacuum-dried at 60° C. for 10 hours, and then the complet...

Embodiment 3

[0042] This embodiment includes the following steps:

[0043] ①Add 80.00mL of acetonitrile, 0.40g of hexachlorocyclotriphosphazene and 1.16g of bisphenol AF into the round bottom flask in turn, and stir evenly at room temperature. After hexachlorocyclotriphosphazene and bisphenol AF were completely dissolved, 4.00 mL of triethylamine was added to the above-mentioned round bottom flask, and stirring was continued at room temperature. After the above mixture was fully mixed, the above round bottom flask was placed in a water bath at 50° C. and subjected to ultrasonic treatment at a power of 100 W for 5 hours. The obtained product was first washed with absolute ethanol, and then centrifuged, and the washing and centrifuging process was repeated three times; then the obtained solid was washed with deionized water, and then centrifuged, and the washing and centrifuging process was repeated three times. The final mixture was vacuum-dried at 60° C. for 10 hours, and then the complet...

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Abstract

The invention discloses a phase-change material lubricated airplane anti-icing surface implementation method. The method comprises the following steps of blending n-hexane, a polydimethylsiloxane prepolymer, a curing agent and polyphosphazene microspheres, coating a target surface with the mixture, drying and curing the target surface to obtain a polyphosphazene / polydimethylsiloxane porous substrate, injecting a phase-change material into the porous substrate until the adsorption is saturated, and preparing the phase-change material lubricated airplane anti-icing surface. According to the method, the polydimethylsiloxane and the polyphosphazene microspheres are simply blended to construct a porous structure with good elasticity, low surface energy and chemical stability, and then a properphase-change material is injected to obtain the phase-change material lubricated anti-icing surface with excellent anti-icing performance and durability. The method is simple, convenient, low in costand high in practicability, and has great application potential in the aspect of aircraft icing prevention.

Description

technical field [0001] The invention relates to a technology in the field of surface treatment, in particular to a method for realizing an aircraft anti-icing surface lubricated by a phase change material. Background technique [0002] Icing is one of the main weather factors that affect aircraft flight and cause flight accidents. In order to reduce or even prevent the impact of icing on aircraft flight safety, researchers initially used super-hydrophobic surfaces as part of aircraft anti-icing systems and carried out extensive research work. However, supercooled water droplets with larger diameters or higher speeds have greater momentum and can penetrate deeper into rough surface areas, thereby increasing the effective contact area and ice adhesion strength; It is easy to frost, and the frost layer will damage the hydrophobic ability of the superhydrophobic surface, and even transform the original hydrophobic surface into a hydrophilic surface; in addition, with the increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/24C09D183/04C09D185/02C09D7/65C09K3/18
CPCB05D7/24B05D2518/10C08L2205/025C08L2205/035C09D183/04C09D185/02C09K3/185C09D7/65C08L83/04C08L85/02
Inventor 黄小彬刘洪李小飞孔维梁
Owner SHANGHAI JIAO TONG UNIV
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