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Carbon fiber composite material for main rotor of helicopter and preparation method of composite material

A composite material and main rotor technology, applied in the direction of rotorcraft, motor vehicles, coatings, etc., can solve the problems of poor coating effect, inconvenient cleaning of the coating chamber, and low efficiency of carbon fiber plate coating, so as to improve Effect of improving tensile strength and friction performance

Inactive Publication Date: 2021-07-30
安徽省飞腾航空科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of carbon fiber composite material and preparation method thereof for helicopter main rotor, solve the following technical problems: (1) solve the technical problem of insufficient tensile strength of carbon fiber materials in the prior art; (2) solve the prior art The technical problem of low coating efficiency and poor coating effect of medium carbon fiber board; (3) solve the technical problem of inconvenient cleaning of the coating chamber cavity in the prior art

Method used

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  • Carbon fiber composite material for main rotor of helicopter and preparation method of composite material
  • Carbon fiber composite material for main rotor of helicopter and preparation method of composite material
  • Carbon fiber composite material for main rotor of helicopter and preparation method of composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A carbon fiber composite material for a helicopter main rotor, prepared from the following raw materials in parts by weight: 30 parts of graphene modified phenolic resin, 3 parts of carbon fiber board, 4 parts of hexamethylenetetramine, 10 parts of wollastonite, 2 parts carbon black, 1 part calcium hydroxide;

[0033] Among them, the preparation process of the carbon fiber composite material for the main rotor of the helicopter is as follows:

[0034] Step 1: Put the carbon fiber plate into the openings on the side of the upper coating chamber 1 and the lower coating chamber 2, turn on the adjustment motor 15, the output shaft of the adjustment motor 15 drives the first lead screw 3 to rotate, and the first lead screw 3 drives the two The two adjusting blocks 4 move towards each other, the adjusting block 4 drives the two rotating rods 5 to rotate, the four rotating rods 5 drive the lifting shell 7 to move, and then the two lifting shells 7 move towards each other, the ...

Embodiment 2

[0044] A carbon fiber composite material for a helicopter main rotor, prepared from the following raw materials in parts by weight: 35 parts of graphene modified phenolic resin, 5 parts of carbon fiber board, 6 parts of hexamethylenetetramine, 15 parts of wollastonite, 4 parts Carbon black, 2 parts calcium hydroxide;

[0045] Among them, the preparation process of the carbon fiber composite material for the main rotor of the helicopter is as follows:

[0046] Step 1 is the same as in Example 1.

[0047] Step 2: Weigh phenol, formaldehyde, and zinc oxide according to the mass ratio of 55:55:1.2, and then sequentially add them into a four-neck bottle containing condensed water, heat up the reaction, and dehydrate under vacuum until the water content is less than 4%. Adjust the viscosity with methanol and cool it below 38°C to obtain phenolic resin;

[0048] Step 3: Disperse graphene in phenolic resin according to the mass ratio of 2:3, then add it into a four-necked flask cont...

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Abstract

The invention discloses a carbon fiber composite material for a main rotor of a helicopter and a preparation method of the composite material. According to the preparation method, the surface of a carbon fiber plate is coated with a pre-cured product, the friction performance of carbon fibers is effectively improved, meanwhile, through preparation of graphene modified phenolic resin, the tensile strength of the whole product is effectively improved, and according to GB / T 31290-2014 measurement, the tensile strength of the carbon fiber composite material for the main rotor of the helicopter is 90-95 MPa. The invention further discloses coating equipment, the coating equipment can meet conveying and coating of the carbon fiber plates with different thicknesses through the arrangement of a lifting shell with the adjustable height; and through the design of a conveying mechanism, conveying rollers can meet the requirement for coating the carbon fiber plates while conveying the carbon fiber plates, and a plurality of conveying rollers are used for coating the carbon fiber plate for multiple times, so that the coating effect on the surface of the carbon fiber plate is good.

Description

technical field [0001] The invention relates to the technical field of carbon fiber preparation, in particular to a carbon fiber composite material for a helicopter main rotor and a preparation method thereof. Background technique [0002] Helicopter main rotors are based on increasingly lightweight designs, and carbon fiber materials will be used. The existing carbon fiber materials have insufficient tensile strength and are easily deformed. At the same time, during the preparation of carbon fiber materials, it is necessary to coat the surface with a material that reduces the coefficient of friction. The existing coating equipment is not efficient in coating carbon fiber plates, and the carbon fiber plates need to be fixed during coating. At the same time, the existing coating equipment The inner cavity is also inconvenient to clean. Contents of the invention [0003] The object of the present invention is to provide a kind of carbon fiber composite material and preparat...

Claims

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Application Information

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IPC IPC(8): C08L61/10C08K9/10C08K7/06C08K3/34C08K3/04C08K3/22C08J5/06B05C1/02B05C11/10B05C13/02B05D7/00B64C27/32
CPCB05C1/02B05C11/10B05C13/02B05D7/00B05D2203/30B64C27/32C08J5/06C08J2361/10C08K3/04C08K3/34C08K7/06C08K9/10C08K2003/2206
Inventor 姚尔强朱轩褚鹏飞谢春良唐建
Owner 安徽省飞腾航空科技有限公司
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