Mxene-V2C modified carbon fiber fabric self-lubricating material and preparation method thereof

A carbon fiber fabric, self-lubricating material technology, applied in the field of friction materials

Active Publication Date: 2021-05-18
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Mxene-V not seen 2 Related reports

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  • Mxene-V2C modified carbon fiber fabric self-lubricating material and preparation method thereof
  • Mxene-V2C modified carbon fiber fabric self-lubricating material and preparation method thereof

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preparation example Construction

[0022] The present invention provides the above-mentioned Mxene-V 2 The preparation method of the carbon fiber fabric self-lubricating material of C modification, comprises the following steps:

[0023] (1) Mxene-V 2 C, phenolic resin and polar organic solvent are mixed, carry out ultrasonication, obtain coating liquid;

[0024] (2) The carbon fiber fabric is immersed in the coating solution, and the obtained impregnated carbon fiber fabric is dried to obtain Mxene-V 2 C modified carbon fiber fabric self-lubricating material.

[0025] The present invention will Mxene-V 2 C. Mix the phenolic resin and the polar organic solvent, and perform ultrasonic to obtain the coating solution. The present invention has no special requirements on the phenolic resin, and the phenolic resin well known to those skilled in the art can be used. As a specific embodiment of the present invention, the phenolic resin is Tiemao brand 204 phenolic resin produced by Shanghai Xinguang Chemical Co.,...

Embodiment 1

[0037] (1) Phenolic resin, ethanol and Mxene-V with a sheet diameter of 20 μm 2 C is dispersed according to the mass of 30g: 60g: 0.4g for 32min under 500W ultrasonic conditions to obtain the coating solution;

[0038] (2) The specification is 1K, the density in the warp direction is 10 pieces / 10mm, the density in the weft direction is 10 pieces / 10mm, and the mass per unit area is 125g / m 2 The carbon fiber fabric was immersed in the above coating solution for 15 minutes, and then moved to a blast oven at 75°C to dry for 45 minutes. The dipping process was repeated until the weight of the blended fiber cloth increased by 50%, and Mxene-V was obtained. 2 C is a carbon fiber fabric self-lubricating material with a load of 2.5% of the fiber cloth mass;

[0039] (3) Paste the above self-lubricating material on the surface of the titanium alloy with phenolic resin, apply a pressure of 0.2 MPa, raise it from room temperature to 150 °C at a rate of 7 °C / min, and form it after curing ...

Embodiment 2

[0042] (1) An organic solvent mixed with phenolic resin, ethanol and acetone, and Mxene-V with a sheet diameter of 25 μm 2 C is dispersed by mass 20g:40g:0.1g for 35min under 550W ultrasonic conditions to obtain a coating solution;

[0043] (2) The specification is 1K, the warp density is 10 / 10mm, the weft density is 10 / 10mm, and the mass per unit area is 120g / m 2 The carbon fiber fabric was immersed in the above coating solution for 10 minutes, and then moved to a 70°C blast oven to dry for 30 minutes. The dipping process was repeated until the weight of the blended fiber cloth increased by 40%, and Mxene-V was obtained. 2 C load is 0.8% of the carbon fiber fabric self-lubricating material of the fiber cloth mass;

[0044] (3) Paste the above-mentioned self-lubricating material on the surface of 304 steel with phenolic resin, apply a pressure of 0.1MPa, raise it from room temperature to 120°C at a rate of 5°C / min, and form it after curing for 2 hours, which is recorded as 2#...

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Abstract

The invention provides an Mxene-V2C modified carbon fiber fabric self-lubricating material and a preparation method thereof, belonging to the technical field of friction materials. Under the action of friction shear stress, the lamellas of Mxene-V2C are extremely easy to slip, so interfacial shear strength can be reduced, and thus, a friction coefficient is reduced; and meanwhile, the surface of the Mxene-V2C has a large number of F- and OH- functional groups, so the interface bonding characteristic of the Mxene-V2C and a carbon fiber fabric can be improved, and the stress transfer and the abrasion life of the self-lubricating material can be improved through the good interface bonding strength. The Mxene-V2C is introduced into the carbon fiber fabric, so the obtained carbon fiber fabric self-lubricating material has a low friction coefficient. The results of embodiments show that the Mxene-V2C modified carbon fiber fabric self-lubricating material provided by the invention has a friction coefficient of 0.101 to 0.125 and shows good tribological properties.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a Mxene-V 2 C modified carbon fiber fabric self-lubricating material and preparation method thereof. Background technique [0002] Carbon fiber fabric reinforced composites have been widely used in aircraft, automobiles, railway equipment, aerospace equipment and defense industries due to their outstanding advantages such as self-lubrication, low cost, easy processing, chemical stability and light weight. At present, fillers such as graphite, molybdenum disulfide, and polytetrafluoroethylene are mostly used in the existing technology to improve the self-lubricating ability of carbon fiber fabrics. However, poor wear resistance is still a bottleneck that restricts its long-term use under complex and harsh working conditions. . Mxene is a new type of transition metal carbide or nitride two-dimensional crystal, which is prepared by selectively etching the A atomic layer...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08K3/14C08K7/06
CPCC08K3/14C08K7/06C08L61/06
Inventor 赵普王齐华李宋徐明坤陶立明张耀明张新瑞王廷梅
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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