Surface design and preparation method of an anti-icing composite material

A composite material and anti-icing technology, which is applied in the fields of surface treatment, chemistry, and material science, can solve the problems of difficult industrialization, cumbersome preparation process of water-based polyurethane emulsion, and unknown effect of composite materials, and achieve high surface structural strength and benefit Large-scale production and application, the effect of good surface chemical stability

Active Publication Date: 2021-01-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ice viscosity strength of the aluminum alloy surface coated with this coating is significantly reduced, but the effect on composite materials is unknown, and the preparation process of the heat-ultraviolet dual-curable water-based polyurethane emulsion involved in the article is cumbersome and difficult for industrialization

Method used

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  • Surface design and preparation method of an anti-icing composite material
  • Surface design and preparation method of an anti-icing composite material
  • Surface design and preparation method of an anti-icing composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The first step is metal pretreatment. Cut a titanium plate of appropriate size, wash it with distilled water, and then put the sample into an acetone solution to clean it to remove oil; Rinse the sample with clean water and then transfer it to the acid solution for cleaning for about 40 seconds to remove the oxide film on the surface of the TA2 titanium plate.

[0041] The second step is photolithography treatment of the metal surface. 1) Put the TA2 titanium plate on the platform of the homogenizer, and spin-coat SUN-1150P positive photoresist. Set the low-speed rotation rate to 400-600rpm / min, the low-speed rotation time to 15-5s, the high-speed rotation rate to 4000rmp / min, and the high-speed rotation time to 20-30min; : 90-110℃, pre-baking time: 30-10min. 3) Exposure, exposure time: 25-40s; 4) Soak the exposed sample in SUN-238D developer solution. 5) post-baking. Post-baking temperature: 90-110°C, post-baking time: 30-10min. 6) Preparation of pickling solutio...

Embodiment 2

[0049] The first step is metal pretreatment. Cut an aluminum plate of appropriate size, wipe the surface of the aluminum alloy with cotton dipped in acetone / alcohol to remove oil stains, weigh 90g NaOH, 90g NaOH 2 CO 3 , prepare 3L alkali solution, put the aluminum alloy in the alkali solution, scrub for 0.5-1min, rinse with tap water for 2-5min, remove the residual alkali solution, when the surface of the plate is uniform white-gray, then prepare 300-500g / L Dilute nitric acid solution pickling aluminum alloy plate.

[0050] The second step is photolithography treatment of the metal surface. 1) Put the aluminum alloy plate on the platform of the glue spreader, and spin coat the negative photoresist. Set the low-speed rotation rate to 400-600rpm / min, the low-speed rotation time to 15-5s, the high-speed rotation rate to 2000rmp / min, and the high-speed rotation time to 20-30min; : 90-110℃, pre-baking time: 30-10min. 3) Exposure, exposure time: 25-40s; 4) Soak the exposed sam...

Embodiment 3

[0058] The first step is metal pretreatment. Cut a titanium plate of appropriate size, wash it with distilled water, and then put the sample into an acetone solution to clean it to remove oil; Rinse the sample with clean water and then transfer it to the acid solution for about 40 seconds to remove the oxide film on the surface of the TC4 titanium plate.

[0059] The second step is photolithography treatment of the metal surface. 1) Put the TC4 titanium plate on the platform of the homogenizer, and spin-coat SUN-1150P positive photoresist. Set the low-speed rotation rate to 400-600rpm / min, the low-speed rotation time to 15-5s, the high-speed rotation rate to 4000rmp / min, and the high-speed rotation time to 20-30min; : 90-110℃, pre-baking time: 30-10min. 3) Exposure, exposure time: 25-40s; 4) Soak the exposed sample in SUN-238D developer solution. 5) post-baking. Post-baking temperature: 90-110°C, post-baking time: 30-10min. 6) Preparation of pickling solution for corrosi...

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Abstract

The invention belongs to the technical field of chemistry, material science and surface treatment, and particularly relates to a preparation method for an anti-icing composite material. The preparation method comprises the following steps of: (1) constructing a microstructure of a micro bulge on a metal plate surface; (2) constructing a micro-nano composite structure on the microstructure throughan inorganic particle with a nano structure; (3) compounding the micro-nano composite structure to the surface of composite material substrate through a template process to obtain a preliminary composite material; (4) coating a low-surface-energy substance layer on the surface with the micro-nano composite structure of the preliminary composite material; and (5) refining the micro-nano composite structure. The composite material obtained through the method has comprehensive performances such as a more refined micro-nano structure, high surface structural strength and good surface chemical stability; and a preparation process is simple, is economical and environmentally friendly, and is beneficial for large-scale production and application.

Description

technical field [0001] The invention belongs to the technical fields of chemistry, material science and surface treatment, and in particular relates to a preparation method of an anti-icing composite material. Background technique [0002] When an aircraft flies at a subsonic speed less than a certain critical Mach number under icing weather conditions, the windward surfaces of some components will freeze due to the impact and accumulation of water droplets in the atmosphere. A large number of accidents and studies have shown that even a small amount of ice accumulation on key parts of the aircraft will lead to a decrease in the lift of the aircraft and an increase in flight resistance, which will lead to deterioration of the aerodynamic qualities of the aircraft such as maneuverability and stability. Especially when the aero-engine is under a certain temperature and humidity on the ground and in the air, the air intake fairing and support plate are prone to icing. The icin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D5/08B05D7/00B05D7/02B05D3/00B82Y30/00B82Y40/00C25D11/06C25D13/02
CPCB05D3/002B05D5/08B05D7/02B05D7/58B05D2201/00B05D2506/10B05D2506/15B05D2507/00B05D2518/00B05D2518/10B82Y30/00B82Y40/00C25D11/06C25D13/02B05D2420/01B05D2425/01
Inventor 潘蕾胡静玲丁文烨马文亮王斐庞小飞陶杰汪涛
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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