Preparing method for corrosion-resistant aluminum alloy super-hydrophobic surface

A super-hydrophobic surface, aluminum alloy surface technology, applied in the direction of metal material coating process, etc., can solve the problems of high cost, complex processing procedures, poor stability, etc., and achieve the effects of low cost, simple preparation method and high stability
CN106929840AInactive Publication Date: 2017-07-07SHANGHAI UNIVERSITY OF ELECTRIC POWER
4 Cites 10 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI UNIVERSITY OF ELECTRIC POWER
Publication Date
2017-07-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a preparing method for a corrosion-resistant aluminum alloy super-hydrophobic surface. An aluminum alloy is pretreated so that surface oil contamination and grease can be removed, then, the aluminum alloy subjected to polishing treatment is put in a mixed aqueous solution of cerium chloride and urea in a high-pressure reactor, a layer of composite micro-nano structure is prepared on the aluminum alloy surface through a hydrothermal reaction, and finally through octadecanoic acid modification, the super-hydrophobic surface with a corrosion-resistant micro-nano structure is obtained on the surface of the aluminum alloy. The contact angle of a super-hydrophobic obtained through the method can reach 155.5 degrees, the super-hydrophobic film has very good super-hydrophobicity, and meanwhile the film layer shows excellent abrasion resisting performance and stability performance in a simulated sea water solution. Compared with the prior art, the preparation process is simple, conditions are easy to control, the cost is low, environmentally friendliness is achieved, and the prepared aluminum alloy super-hydrophobic surface is relatively high in stability.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of chemical industry, and relates to a metal surface treatment method, in particular to a preparation method of an aluminum alloy super-hydrophobic surface with corrosion resistance. Background technique

[0002] The current output and consumption of aluminum (in terms of tons) is second only to steel, becoming the second largest metal used by humans. Aluminum and aluminum alloys are metal materials with excellent comprehensive properties. The advantages are as follows: (1) Low density. It is a light metal whose density is only higher than that of magnesium among all metal materials, which is about 1 / 3 of the density of steel. (2) High plasticity. (3) Easy to strengthen. The strength of pure aluminum is poor, but the aluminum alloy after alloying and heat treatment can have high specific strength. (4) Good thermal conductivity and electrical conductivity. Under the same mass conditions, the metal conductivity of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More