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Skin material for electric heating anti-icing and deicing of airplane, and preparation method thereof

A kind of skin material and electric heating technology, applied in the direction of chemical instruments and methods, lamination, layered products, etc., can solve the problems of uneven and uneven distribution of fracture temperature, flexibility and heating temperature of metal components, so as to improve toughness, The deicing effect remains unchanged and the fluidity is good

Pending Publication Date: 2022-01-21
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the problems of flexibility and uneven temperature distribution caused by the electric heating deicing system using metal materials as the electric heating element of the deicing system and being attached to the aircraft skin in the prior art, the present invention proposes a Ti / CFRP The aircraft skin with integrated structure and function based on composite laminates has good mechanical properties and electrothermal deicing performance, which effectively solves the problems of metal component fracture and uneven temperature

Method used

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  • Skin material for electric heating anti-icing and deicing of airplane, and preparation method thereof
  • Skin material for electric heating anti-icing and deicing of airplane, and preparation method thereof
  • Skin material for electric heating anti-icing and deicing of airplane, and preparation method thereof

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preparation example Construction

[0041] The disclosed embodiments of the present invention propose a method for preparing a skin material for electrothermal anti-icing of aircraft, including:

[0042] Step 2. Use reduced graphene oxide (RGO) to modify epoxy resin to obtain modified carbon fiber reinforced resin composite material (R@CFRP), and on this basis, compound with titanium alloy plate to prepare modified titanium plate / carbon fiber Reinforced resin composites (R@Ti / CFRP).

[0043] Preferably, in described step 1, prepare reduced graphene oxide (RGO) based on flake graphite material, comprising:

[0044] Low-temperature reaction: combining flake graphite and NaNO 3 Put it into a 1L beaker, add 150mL concentrated sulfuric acid under ice bath conditions, stir and react for 15min, weigh the KMnO 4 , added to the flask in batches under the condition of constant stirring, and controlled the reaction temperature at 5°C;

[0045] Medium temperature reaction: to be KMnO 4 After adding everything, react for...

Embodiment 1

[0071] (1) Preparation of reduced graphene oxide (RGO)

[0072] Low temperature reaction: 6g flake graphite and 3g NaNO 3 Put it into a 1L beaker, add 150mL concentrated sulfuric acid under ice bath conditions, stir and react for 15min, weigh 18gKMnO 4 , added to the flask in batches (once every 15 minutes) under the condition of constant stirring, and controlled the temperature at about 5°C.

[0073] Medium temperature reaction: to be KMnO 4 After adding everything, react for 120 minutes, then transfer the beaker to a water bath at 35°C and continue stirring. When the liquid becomes viscous (about 120 minutes), add 200 mL of deionized water into the beaker; keep the temperature at this stage and continue the reaction for 120 minutes.

[0074] High temperature reaction: heat up to 98°C; then add 400mL deionized water to dilute, cool down and add 30% hydrogen peroxide to reduce excess potassium permanganate until no bubbles are generated and the solution is bright yellow. Wa...

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Abstract

The invention provides a skin material for electric heating anti-icing and deicing of an airplane, and a preparation method thereof. The preparation method comprises the following steps: preparing reduced graphene oxide (RGO) based on a crystalline flake graphite material; using the RGO to modify epoxy resin, and obtaining a modified carbon fiber reinforced resin composite material (R@CFRP) through a vacuum-assisted resin transfer molding technology; and based on the R@CFRP, preparing the modified titanium plate / carbon fiber reinforced resin composite material (R@Ti / CFRP) through a vacuum-assisted resin transfer molding technology. According to the skin material for electric heating anti-icing and deicing of the airplane, the airplane skin with the integrated structure and function is prepared on the basis of the Ti / CFRP composite laminate, meanwhile, good mechanical performance and electric heating deicing performance are achieved, and the problems that metal elements are broken, and the temperature is uneven are effectively solved.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to carbon fiber reinforced resins, and in particular to a skin material for aircraft electrothermal anti-icing and a preparation method thereof. Background technique [0002] Fiber metal laminates (FMLs) are interlayer hybrid composites formed by alternate lamination of metal sheets and fiber-reinforced resin prepregs and then cured under a certain temperature and pressure, also known as hyperhybrid laminates. It combines the characteristics of fiber composite materials and metal materials, and has high specific strength, specific stiffness, excellent high temperature resistance and high damage tolerance. FMLs materials represented by GLARE have been successfully applied in aircraft fuselage, wing skin and other parts. [0003] With the development of the aerospace industry, aircraft skins need to meet higher requirements in the aerospace field. At present, the modulus and u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K7/06C08K3/04C08J5/04B32B15/00B32B9/00B32B9/04B32B38/08
CPCC08J5/042B32B15/00B32B15/14B32B5/02B32B5/26B32B38/08C08J2363/00C08K7/06C08K3/042B32B2260/023B32B2260/046B32B2262/106B32B2307/302B32B2307/202B32B2307/552B32B2605/18
Inventor 张亚男王朋飞魏杰胡玉冰
Owner NANJING TECH UNIV
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