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Method for preparing conducting polymer-perfluoropolyether oil complex phase coating

A technology of perfluoropolyether oil and conductive polymer, which is applied in coating, electrolytic coating, electrophoretic plating, etc., to achieve the effect of high hydrophobicity, good environmental stability and simple preparation process

Inactive Publication Date: 2013-08-21
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the preparation of such a coating system with a multi-phase structure and its application in the field of anti-corrosion and anti-fouling in the marine environment.

Method used

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  • Method for preparing conducting polymer-perfluoropolyether oil complex phase coating
  • Method for preparing conducting polymer-perfluoropolyether oil complex phase coating
  • Method for preparing conducting polymer-perfluoropolyether oil complex phase coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In this example, 0.2 mol of pyrrole monomer and 0.1 mol of sodium lauryl sulfate commercially available were put into 1 L of dedistilled water, stirred at a constant temperature at 25°C until completely dissolved to form an electrolyte solution, and a three-electrode system was used at a potential of 1.0V The constant potential polymerization was carried out under the condition of 15 minutes, and the polypyrrole film was obtained on the surface of the low-alloy steel working electrode. The prepared polypyrrole film was taken out from the electrolyte solution, rinsed repeatedly with distilled water, and placed in a vacuum oven at 60°C under vacuum. Dry 24h to obtain the polypyrrole / low-alloy steel composite material, and the microscopic appearance of the polypyrrole / low-alloy steel composite material is as follows: figure 1 Shown; Then the polypyrrole / low alloy steel composite is soaked in perfluorooctyl trichlorosilane, and placed in a conventional desiccator to stand fo...

Embodiment 2

[0025] In this example, commercially available 0.1mol pyrrole monomer and 0.05mol sodium dodecylbenzenesulfonate were added to 1L of dedistilled water, stirred at a constant temperature at 20°C until completely dissolved to form an electrolyte solution, and a three-electrode system was used at 1.4V Carry out potentiostatic polymerization under electric potential, and the reaction time is 20 minutes. Polypyrrole film is obtained on the surface of low-alloy steel working electrode. The prepared polypyrrole is taken out from the electrolyte solution, rinsed repeatedly with distilled water, and placed in a vacuum drying oven at 60°C under vacuum. Drying for 24 hours to obtain polypyrrole / low-alloy steel, soaking polypyrrole / low-alloy steel in perfluorododecyltrichlorosilane and placing it in a desiccator for 36 hours, then impregnating it with perfluoropolyether oil to obtain The final product perfluoropolyether oil / polypyrrole composite material is a conductive polymer-perfluoropo...

Embodiment 3

[0028]In this example, 0.3 mol of pyrrole monomer and 0.1 mol of sodium lauryl sulfate commercially available were added to 1 L of de-distilled water, stirred at a constant temperature at 20°C until completely dissolved to form an electrolyte solution, and the three-electrode system was used at a potential of 1.8V. Potentiostatic polymerization, the reaction time is 10min, the polypyrrole film is obtained on the surface of the low-alloy steel working electrode, the prepared polypyrrole is taken out from the electrolyte solution, washed repeatedly with distilled water, and dried in a vacuum oven at 60°C for 24h to obtain the polypyrrole film. The molecular structure infrared spectrum of pyrrole / low alloy steel and polypyrrole / low alloy steel is as follows Figure 4 shown; then polypyrrole / low-alloy steel was soaked in perfluorooctyltrichlorosilane, and placed in a desiccator for 48 hours and then impregnated with perfluoropolyether oil to obtain the final product conductive poly...

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Abstract

The invention belongs to the field of conducting polymer anticorrosive coating material preparation and relates to a method for preparing a conducting polymer-perfluoropolyether oil complex phase coating. The method comprises the following steps of: firstly adding distilled water or deionized water to a pyrrole monomer and a surfactant and stirring until the pyrrole monomer and the surfactant are completely dissolved to obtain an electrolyte solution A; then carrying out constant potential polymerization on a working electrode in the electrolyte solution A, taking the working electrode out of the electrolyte solution A, repeatedly washing the working electrode by use of the distilled water or the deionized water, and drying the working electrode to obtain a polypyrrole / low alloy steel composite material B; then after processing the polypyrrole / low alloy steel composite material B by virtue of a fluridizer, standing the polypyrrole / low alloy steel composite material B in a dryer to obtain a composite material C with the hydrophobic surface; and finally carrying out impregnation processing on the composite material C by perfluoropolyether oil to obtain the conducting polymer-perfluoropolyether oil complex phase coating on the surface of the working electrode. The preparation process is simple, the preparation principle is scientific, and the prepared conducting polymer-perfluoropolyether oil complex phase coating has the advantages of high hydrophobic property, good antiseptic property and good environmental stability.

Description

Technical field: [0001] The invention belongs to the field of preparation of conductive polymer anticorrosion coating materials, and relates to a preparation process of a micronano-scale rough conductive polymer-perfluoropolyether oil composite coating, in particular to a conductive polymer-perfluoropolyether oil Preparation method of multiphase coating. Background technique: [0002] In recent years, the application of conductive polymers in corrosion protection has attracted widespread attention. In 1985, DeBerry discovered that the polyaniline film formed by electrochemical polymerization in acidic medium can passivate the surface of stainless steel to form a dense oxide film, thereby achieving a good anti-corrosion effect. This discovery quickly attracted people's attention. A series of related researches have been carried out rapidly. People have tried various methods to apply various conductive polymers to metal anticorrosion, and quite a few of them have achieved rem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D13/08C23F11/12C23F17/00
Inventor 邱日侯健朱红飞徐景坤
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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