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

[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 con

[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 contain