Preparation method of titanium dioxide-polyaniline composite corrosion-resistant coating

An anti-corrosion coating and titanium dioxide technology, applied in the direction of titanium dioxide, anti-corrosion coatings, titanium oxide/hydroxide, etc., can solve the problems of time-consuming and laborious, difficult process control, and difficulty in obtaining product or semi-product quality stability and consistency Guarantee and other issues, to achieve the effect of short process flow, good quality uniformity, and simple process control

Active Publication Date: 2015-12-02
SHANDONG UNIV OF SCI & TECH
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It is not difficult to imagine that the whole process of the above preparation method is time-consuming and laborious, the process control of each step is difficult, and the quality stability and consistency of the product or semi-product are difficult to be guaranteed.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of titanium dioxide-polyaniline composite corrosion-resistant coating
  • Preparation method of titanium dioxide-polyaniline composite corrosion-resistant coating
  • Preparation method of titanium dioxide-polyaniline composite corrosion-resistant coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The preparation method includes the following steps:

[0068] The first step, the preparation step of the precursor solution

[0069] Measure 0.3g aniline, 0.3g surfactant, 0.6g ammonium persulfate, 1.2ml tetrabutyl titanate, 50ml deionized water;

[0070] First mix the aniline taken with the surfactant, add deionized water, stir to prepare a solution, and adjust the pH value to 2.5 with hydrochloric acid;

[0071] Add butyl titanate dropwise while stirring. After all butyl titanate is added, continue stirring for another half an hour;

[0072] Finally, add the ammonium persulfate taken dropwise to the above solution while stirring, and after all the ammonium persulfate is added, continue to stir for half an hour to obtain a precursor solution;

[0073] The second step, the metal plate pretreatment step

[0074] Take the size as 1×1cm 2 The surface of stainless steel 304 flakes is polished first, then cleaned with deionized water, and then air-dried naturally for use;

[0075] The t...

Embodiment 2

[0079] Except that the precursor solution was adjusted to pH 2 with hydrochloric acid, everything else was the same as in Example 1.

Embodiment 3

[0081] Except that the precursor solution is adjusted to pH 3 with hydrochloric acid, everything else is the same as in Example 1.

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

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method of a titanium dioxide-polyaniline composite corrosion-resistant coating. According to the preparation method, the steps of preparing nanometer titanium dioxide, synthesizing titanium dioxide-polyaniline, coating the surface of a metal plate with the titanium dioxide-polyaniline, and the like are synchronously carried out in a hydrothermal reaction kettle, and are completed through one step. The technical problem in the prior art that nanometer titanium dioxide is easy to agglomerate in a mixed solution system comprising the nanometer titanium dioxide and polyaniline is solved well, the technological process is greatly shortened, and the process control difficulty is reduced; besides, the step of heating and drying the composite coating required in the prior art is eliminated, and a series of technical problems that a coating easily cracks due to organic matter volatilization to further influence the combination firmness between the composite coating and a metal matrix, and the like are solved. The preparation method has the characteristics of being short in technological process, simple to control, stable and reliable in product quality, and the like, and the titanium dioxide-polyaniline composite corrosion-resistant coating prepared is suitable for being used as cathodic protection of copper, steel or stainless steel base material.

Description

Technical field [0001] The invention relates to a method for preparing a titanium dioxide-polyaniline composite coating, in particular to a method for preparing a titanium dioxide-polyaniline composite anticorrosive coating. Background technique [0002] Titanium dioxide has a unique photoelectric conversion effect. The titanium dioxide is made into a coating and applied to the metal surface. Under light, the valence band electrons of titanium dioxide are excited to the conduction band to form electron-hole pairs, and the negative electrons enter the metal matrix to make the metal electrode The potential is reduced to the cathodic protection zone where corrosion does not occur, as a non-sacrificial photocathodic protection material, to achieve corrosion protection of metals. This corrosion protection ability depends on the photoelectric efficiency of titanium dioxide. [0003] However, the photoelectric efficiency of pure titanium dioxide is low, and the protective effect of the a...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C09D179/02C09D5/08C08G73/02C01G23/053
Inventor 张伟伟郭翰林孙海清
Owner SHANDONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap