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Composite sacrificial anode

A sacrificial anode and mercapto compound technology, applied in the field of corrosion protection of materials, can solve the problems of frequent maintenance and replacement, and achieve the effect of saving material costs, delaying consumption and saving maintenance costs

Inactive Publication Date: 2017-01-11
QUANZHOU ZHENJIANG SPORTS GOODS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sacrificial anode materials experience continuous corrosion and wear, often requiring more frequent maintenance and replacement

Method used

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  • Composite sacrificial anode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The composition of the composite sacrificial anode of this embodiment is: 5.0wt% zinc powder (average particle size of 5μm), 15.0wt% nano zinc oxide, 6.0wt% nano zinc aluminum hydrotalcite, 1.5wt% silane coupling KH550, 3.0wt% of 4,4'-dimercaptodiphenyl sulfoxide, and the remainder of polymethyl methacrylate are processed into a thickness of 0.5mm and an area of ​​500mm using an extrusion molding process 2 (25mm×20mm) sheet.

Embodiment 2

[0024] The composition of the composite sacrificial anode of this embodiment is: 10.0wt% zinc powder (average particle size of 5μm), 12.0wt% nano zinc oxide, 5.5wt% nano zinc aluminum hydrotalcite, 3.0wt% silane coupling KH550, 2.5wt% of 4,4'-dimercaptodiphenylsulfone, and the balance of polymethyl methacrylate are processed into a thickness of 0.5mm and an area of ​​500mm by extrusion molding process 2 (25mm×20mm) sheet.

Embodiment 3

[0026] The composition of the composite sacrificial anode of this embodiment is: 15.0wt% zinc powder (average particle size of 5μm), 10.0wt% nano zinc oxide, 5.0wt% nano zinc aluminum hydrotalcite, 2.0wt% silane coupling KH550, 2.5wt% of 4,4'-dimercaptodiphenylmethane, and the remainder of polymethyl methacrylate are processed into a thickness of 0.5mm and an area of ​​500mm by extrusion molding process 2 (25mm×20mm) sheet.

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Abstract

The invention relates to a composite sacrificial anode and belongs to the technical field of material protection. The composite sacrificial anode is prepared from 5.0wt%-35.0wt% of active metal particles, 5.0wt%-15.0wt% of n-type oxide, 3.0wt%-6.0wt% of double hydroxide, 0.5wt%-3.0wt% of a coupling agent, 1.0wt%-3.0wt% of a sulfhydryl compound and the balance of acrylic resin. The composite sacrificial anode can generate free electrons under the condition of natural illumination and can strengthen the polarization effect on a cathode of a protected metal material, compared with ordinary sacrificial anodes, the composite sacrificial anode has the advantage that consumption of the active metal particles can be reduced or delayed, and the material cost and the maintenance cost can be saved.

Description

Technical field [0001] The present invention relates to the technical field of corrosion protection of materials. More specifically, the present invention relates to a composite sacrificial anode used for cathodic protection of metal materials. Background technique [0002] Metal is exposed to the natural environment to form metal oxides and corrosion is an inevitable process. Every year, the world needs to spend huge amounts of money to repair or replace various metal components that have lost their performance due to corrosion. Various products or facilities containing iron or steel components, such as roads, bridges, railways, buildings and other infrastructure; industrial pipelines such as oil and natural gas need corrosion protection. Studies have shown that the expenditure or cost of prevention, repair and replacement due to corrosion is estimated to account for 3% to 4% of the GDP of industrialized countries. [0003] The corrosion of metals is due to the loss of electrons ...

Claims

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Application Information

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IPC IPC(8): C23F13/14
CPCC23F13/14
Inventor 黄文鹏
Owner QUANZHOU ZHENJIANG SPORTS GOODS CO LTD
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