Anti-corrosion silicon carbide wear-resistant material and preparation method thereof

Abstract

The invention discloses an anti-corrosion silicon carbide wear-resistant material and a preparation method thereof. The anti-corrosion silicon carbide wear-resistant material is prepared from the following raw materials by weight: 25-30 parts of silicon carbide, 12-15 parts of a reinforcing agent, 3-5.5 parts of zinc oxide, 12-15 parts of phenolic resin, 8-10 parts of nano-graphite, 3-5 parts of aluminum oxide, 6-8 parts of a dispersing agent and 40-50 parts of deionized water. The reinforcing agent is prepared in the preparation process, the reinforcing agent contains modified nano activated carbon, the surface of the reinforcing agent contains a large number of copper ions, the copper ions easily form copper oxide with oxygen, meanwhile, the reinforcing agent contains an intermediate F, the intermediate F belongs to aromatic polyamide, the intermediate F contains an alkyl long-chain structure and two nitryl groups, nitryl is a hydrophobic group, so that the water solubility of the intermediate F is greatly reduced, the anti-corrosion silicon carbide wear-resistant material does not have the phenomenon of wear-resistant substance loss after being soaked in water, and the wear resistance and corrosion resistance of the anti-corrosion silicon carbide wear-resistant material are further ensured.

Description

technical field [0001] The invention belongs to the field of silicon carbide preparation, and in particular relates to a corrosion-resistant silicon carbide wear-resistant material and a preparation method thereof. Background technique [0002] Silicon carbide is smelted from quartz sand, petroleum coke, wood chips and other raw materials through resistance furnace at high temperature. It has certain corrosion resistance, high temperature resistance, good thermal conductivity, impact resistance and other characteristics. It is widely used in functional ceramics, advanced refractory materials, abrasives And metallurgical raw materials and other fields, but in order to be suitable for use in some special environments, people also modify silicon carbide materials to further improve the characteristics of silicon carbide materials, thereby making silicon carbide materials more widely used; [0003] Chinese invention patent CN104498778A discloses a high-silicon carbide content al...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a corrosion-resistant silicon carbide wear-resistant material and its preparation method to improve the defects of silicon carbide materials commonly used in the market. The reinforcing agent contains modified nano-activated carbon, and its surface contains a large amount of copper ions. Copper ions are easy to form copper oxide with oxygen. Copper oxide is currently the most corrosion-resistant material, making the corrosion-resistant silicon carbide wear-resistant material corrosion-resistant At the same time, the reinforcing agent contains intermediate F, which is a polymer similar to polyparabenamide, which belongs to aromatic polyamide, and aromatic polyamide has good wear resistance and corrosion resistance Non-toxic, but easily soluble in water. Intermediate F contains a long chain structure with an alkyl group and two nitro groups. The nitro group is a hydrophobic group, which greatly reduces the water solubility of intermediate F, making corrosion-resistant silicon carbide wear-resistant The material will not lose the wear-resistant substance after soaking in water, which further ensures its own wear resistance;

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