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A method for preparing super-lubricating surface of imitation pitcher plant by arc spraying technology

A technology of electric arc spraying and pitcher plant imitation, which is applied to the device for coating liquid on the surface, pretreatment surface, coating, etc., can solve the problems of limiting the application range, etc., and achieve reliable process, prevent existence, and low preparation cost Effect

Active Publication Date: 2020-06-16
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a big disadvantage in this preparation method, that is, the metal substrate used can only be metal aluminum, which can only realize the atmospheric corrosion protection of metal aluminum, so its application range is greatly limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Substrate surface cleaning: take carbon steel as the substrate, wash it with acetone, alcohol, and deionized water in sequence, and dry it with nitrogen gas for later use;

[0034] (2) Roughening of the surface of the substrate: The surface of the cleaned substrate is roughened by sandblasting to increase the surface roughness of the substrate and improve the bonding strength of the coating. The process parameters adopted are air pressure 1.0MPa, sandblasting time 20 seconds, and the number of sand shot used for sandblasting is 30 mesh;

[0035] (3) Coating construction on the substrate surface: Aluminum wire is used as the material, and the aluminum coating is constructed on the surface of the substrate by arc spraying, with a thickness of 200um; the spraying parameters are: spraying current 200A, spraying voltage 30V, spraying distance 200mm, arc travel Gun speed 100mm / s.

[0036] (4) Surface modification: Soak the substrate treated in step (3) in a 1% by volume ...

Embodiment 2

[0040] (1) Surface cleaning of the substrate: take polyethylene as the substrate, wash it with acetone, alcohol, and deionized water in sequence, and dry it with nitrogen gas for later use;

[0041] (2) Roughening of the surface of the substrate: The surface of the cleaned substrate is roughened by sandblasting to increase the surface roughness of the substrate and improve the bonding strength of the coating. The process parameters adopted are air pressure 1.0MPa, sandblasting time 60 seconds, and the number of sand shot used for sandblasting is 60 mesh;

[0042] (3) Coating construction on the substrate surface: Aluminum wire is used as the material, and the aluminum coating is constructed on the surface of the substrate by arc spraying, with a thickness of 200um; the spraying parameters are: spraying current 200A, spraying voltage 30V, spraying distance 200mm, arc travel Gun speed 100mm / s.

[0043] (4) Surface modification: soak the substrate treated in step (3) in a 2% by ...

Embodiment 3

[0047] (1) Substrate surface cleaning: take glass as the substrate, wash it with acetone, alcohol and deionized water in sequence, and dry it with nitrogen gas for later use;

[0048] (2) Roughening of the surface of the substrate: The surface of the cleaned substrate is roughened by sandblasting to increase the surface roughness of the substrate and improve the bonding strength of the coating. The process parameters adopted are air pressure 1.0MPa, sandblasting time 40 seconds, and the number of sand shot used for sandblasting is 200 mesh;

[0049] (3) Coating construction on the substrate surface: Aluminum wire is used as the material, and the aluminum coating is constructed on the surface of the substrate by arc spraying, with a thickness of 200um; the spraying parameters are: spraying current 200A, spraying voltage 30V, spraying distance 200mm, arc travel Gun speed 100mm / s.

[0050] (4) Surface modification: Put the substrate treated in step (3) into a vacuum desiccator, ...

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PUM

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Abstract

The invention discloses a method for the preparing pitcher plant-imitating super-lubricating surface through an electric-arc spraying technology. Through the electric-arc spraying technology, an aluminum coating is built on the surface of a base body, then low-surface-energy substance modification and lubricating oil covering are sequentially conducted, and then the pitcher plant-imitating super-lubricating surface is obtained. The preparation method of the pitcher plant-imitating super-lubricating surface does not have special requirements for the base body, simple in preparation technique, good in repeatability and suitable for large-area and industrialized application.

Description

technical field [0001] The invention relates to the field of preparation of super-lubricating surfaces, in particular to a method for preparing super-lubricating surfaces imitating nepenthes by using an arc spraying technique. Background technique [0002] Nepenthes are a class of tropical carnivorous plants that possess a unique pitcher-shaped organ that is shaped like a pig's cage for absorbing nutrients—the pitcher. The mouth of the vase is infiltrated with honey, making it very smooth, and the insects that stay on it will slide down into the vase, where they will be decomposed and digested by the liquid secreted from the bottom of the vase to become their own nutrients. [0003] Inspired by the superlubricating properties of the surface of Nepenthes, scientists poured lubricating fluid into porous micro / nanostructured substrates to develop a smooth porous surface SLIPS (Wong TS, Kang SH, Tang SKY, Smythe EJ, HattonBD, Grinthal A, Aizenberg J. Nature, 2011, 477(7365):443...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/131C23C4/18C23C4/08B05D1/04B05D3/04B05D7/24B05D1/18
CPCB05D1/04B05D1/18B05D3/002B05D3/0466B05D7/24C23C4/08C23C4/131C23C4/18
Inventor 张波涛龚永锋陈秀勇黄晶李华
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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