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Super wear-resistant novel two-dimensional composite material and preparation method thereof

A two-dimensional material and composite material technology, which is applied in the field of super wear-resistant new two-dimensional composite materials and their preparation, can solve the problems of poor wear resistance of the new two-dimensional composite materials, cannot meet wear resistance requirements, etc., and achieve excellent wear resistance. performance effect

Active Publication Date: 2019-05-21
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, new two-dimensional composite materials are often prepared by the method of preparing solution or directly sprinkling powder, but the wear resistance of the new two-dimensional composite materials prepared by these two methods is poor, which cannot meet the high demand for wear resistance. Wear resistance requirements of materials or components

Method used

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  • Super wear-resistant novel two-dimensional composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] First, 30 mg of two-dimensional trititanium carbide (Ti 3 C 2 ) powder was evenly sprinkled on the surface of the silicon wafer, and then 30mg of nano-diamond powder (Shanghai Aladdin Biochemical Technology Co., Ltd., N140011) was evenly sprinkled on the two-dimensional Ti 3 C 2 Slowly add 0.2mL of absolute ethanol dropwise to the surface of the powdered silicon wafer until it is covered with two-dimensional Ti 3 C 2 powder and nano-diamond powder on the surface of a silicon wafer, and coated with a scraper so that the two powders and absolute ethanol are evenly mixed, placed in a room temperature environment, until the absolute ethanol volatilizes completely, and a new super wear-resistant two-dimensional composite material is obtained.

Embodiment 2

[0038] First, 30 mg of two-dimensional trititanium carbide (Ti 3 C 2 ) powder was evenly sprinkled on the surface of the silicon wafer, and then 30 mg of single-layer graphene powder (Shanghai Aladdin Biochemical Technology Co., Ltd., G139804) was evenly sprinkled on the two-dimensional Ti 3 C 2 Powder the surface of the silicon wafer, slowly drop 0.2mL of absolute ethanol to sprinkle the 2D Ti 3 C 2 Powder and graphene powder on the surface of silicon wafers, and use a scraper to mix the two powders and absolute ethanol evenly, place them at room temperature, and wait for the absolute alcohol to volatilize completely to obtain a new super wear-resistant two-dimensional composite material.

Embodiment 3

[0040] First place the silicon wafer gently on the bottom of the glass beaker, add 10mL of absolute ethanol to the glass beaker; then add 30mg of two-dimensional trititanium carbide (Ti 3 C 2 ) powder and 30 mg of nano-diamond powder were slowly added to a beaker filled with absolute ethanol; after the beaker was sealed, ultrasonically vibrated for 1 hour at room temperature (ultrasonic power was 200W, frequency was 40kHz), and then left to stand in room temperature environment For 24 hours, all the materials in the beaker were deposited on the surface of the silicon wafer to obtain a semi-finished product of a super wear-resistant two-dimensional composite material; gently clamp the semi-finished product of a new super wear-resistant two-dimensional composite material from the beaker with tweezers, and place it on the At room temperature, after the absolute ethanol volatilizes completely, a new super wear-resistant two-dimensional composite material is obtained.

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Abstract

The invention discloses a preparation method of a super wear-resistant novel two-dimensional composite material. The preparation method is a coating method, and comprises the following steps: scattering a novel two-dimensional composite material on the surface of a substrate, scattering a zero-dimensional material B and / or a two-dimensional material C on the surface of the novel two-dimensional material A, adding a solvent to the surface of the novel two-dimensional material A and the surface of the zero-dimensional material B and / or the two-dimensional material C, performing coating by usinga scarper plate until the novel two-dimensional material A, the zero-dimensional material B and / or the two-dimensional material C and the solvent are uniformly mixed, and volatilizing the solvent to obtain the super wear-resistant novel two-dimensional composite material supported on the substrate. The super wear-resistant novel two-dimensional composite material prepared by the method can meet the wear resistance demands of materials or parts with high wear resistance demand.

Description

technical field [0001] This application relates to the surface treatment technology of mechanical engineering, especially refers to the super wear-resistant new two-dimensional composite material and its preparation method. Background technique [0002] Novel two-dimensional material (chemical formula M n+1 x n ) refers to a class of two-dimensional materials including two-dimensional transition metal carbides, nitrides, and carbonitrides, with a special layered structure, and the chemical formula is M n+1 YX n Y in the raw material is formed after etching, wherein M is a transition metal element, Y is a main group element, X is carbon and / or nitrogen, n=1, 2, 3, and the obtained M n+1 x n It can still maintain a special two-dimensional layered structure, and can play a certain wear resistance when used as a lubricant (Naguib et al., 25th anniversary article: MXenes: a new family of two-dimensional materials, Advanced Materials, 2014, 26( 7): 992-1005). However, when s...

Claims

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Application Information

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IPC IPC(8): C09K3/14
Inventor 陈新春尹绚张晨辉雒建斌
Owner TSINGHUA UNIV
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