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Making method of graphene modified titanium oxide metal anticorrosion coating

A technology of graphene modification and titanium oxide, which is applied in the direction of metal material coating process, coating, liquid chemical plating, etc., can solve the difficulty of guaranteeing the mechanical properties and cathodic protection effect of the coating, the agglomeration of titanium oxide, and abnormal growth and other issues, to achieve the effect of improving electron transfer efficiency, low cost, and improving transfer efficiency

Active Publication Date: 2015-03-04
三防(山东)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the deposition and drying process of amorphous titanium hydroxide, titanium oxide is easy to form agglomeration and abnormal growth during the crystallization process, which will also make it difficult to guarantee the mechanical properties and cathodic protection effect of the coating.
[0017] And the technical solutions of the above patent applications only involve the preparation of graphene / titanium oxide composite powder
[0018] Based on the photocathodic protection performance of titanium oxide, a graphene-modified titanium oxide photocathode protection coating is prepared on a metal substrate to improve the cathodic protection performance of the coating, which is not involved in the prior art

Method used

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  • Making method of graphene modified titanium oxide metal anticorrosion coating
  • Making method of graphene modified titanium oxide metal anticorrosion coating
  • Making method of graphene modified titanium oxide metal anticorrosion coating

Examples

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Embodiment 1

[0052] The preparation method of graphene modified titanium oxide metal anticorrosion coating comprises the steps:

[0053] The first step, the preparation steps of graphene precursor solution:

[0054] In parts by volume, measure 10 parts of graphene oxide aqueous solution and 30 parts of absolute ethanol with a concentration of 2 g / L respectively, mix them and place them in an ultrasonic cleaner for ultrasonic dispersion to prepare a graphene precursor solution;

[0055] The second step, the preparation step of titanium oxide sol:

[0056] In parts by volume, measure 10 parts of analytically pure butyl titanate and 50 parts of absolute ethanol respectively, mix and make A solution;

[0057] In parts by volume, measure 10 parts of deionized water, 10 parts of analytical pure glacial acetic acid and 20 parts of absolute ethanol respectively, and mix them to form solution B;

[0058] Stir and mix the above-mentioned solution A and solution B uniformly to obtain a titanium oxi...

Embodiment 2

[0073] In the first step, in the preparation step of the graphene precursor solution, measure 10 parts of absolute ethanol by volume;

[0074] In the second step, in the preparation step of titanium oxide sol, 40 parts of dehydrated alcohol are measured and mixed to form A solution according to the volume fraction; 10 parts of dehydrated alcohol are measured and mixed to form B solution;

[0075] In the third step, in the preparation step of graphene-modified titanium oxide powder, the reaction time in the hydrothermal reactor was 8 hours; the rest were the same as in Example 1.

Embodiment 3

[0077] In the first step, in the preparation step of the graphene precursor solution, measure 15 parts of graphene oxide aqueous solution with a concentration of 2 g / L and 20 parts of absolute ethanol in parts by volume;

[0078] In the second step, in the preparation step of titanium oxide sol, 30 parts of dehydrated alcohol are measured and mixed to form A solution according to the volume fraction; 20 parts of dehydrated alcohol are measured and mixed to form B solution;

[0079] In the third step, in the preparation step of graphene-modified titanium oxide powder, the reaction time in the hydrothermal reactor is 12 hours;

[0080] In the fifth step, in the preparation step of the graphene oxide / titanium dioxide composite coating, the graphene oxide / titanium dioxide composite powder is added in an amount of 8g per liter of silane sol;

[0081] All the other are the same as in Example 1.

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Abstract

The invention discloses a making method of a graphene modified titanium oxide metal anticorrosion coating. The method comprises the following steps: preparing a graphene precursor solution, preparing a titanium oxide sol, preparing graphene modified titanium oxide powder, preparing a silane sol, making a composite coating, and making the metal anticorrosion coating. The thickness of the anticorrosion coating is 200-500nm. TiO2 particles in the graphene modified titanium oxide powder have uniform scales, and are uniformly distributed on a reduced graphene oxide layer, the crystal form structure of TiO2 is an anatase phase and brookite mixed crystal form, and the anatase phase and brookite mixed crystal form forms a compound energy zone structure, so the luminous energy utilization rate of titanium oxide is improved, the transfer path of electrons in the titanium oxide photocathode protection process is prolonged, the electron-hole recombination is reduced, and the photoinduced cathode protection effect of the coating is improved.

Description

technical field [0001] The invention relates to a preparation method of a titanium oxide metal anticorrosion coating, in particular to a preparation method of a graphene-modified titanium oxide metal anticorrosion coating. Background technique [0002] Metal anti-corrosion is of great significance to industrial technical fields related to the utilization of marine resources, where the sun is directly exposed to the sun for a long time, the temperature difference between day and night is large, the saline-alkali composition in the air is complex, the concentration is high, and the humidity is high: the occurrence and aggravation of metal corrosion will significantly reduce the The mechanical properties such as strength, plasticity and toughness of materials will destroy the geometric shape of metal components, increase the wear between parts, deteriorate electrical and optical physical properties, shorten the service life of equipment, and even cause catastrophic accidents suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/00
CPCC23C18/1216C23C18/1254
Inventor 张伟伟岳龙飞孙海清
Owner 三防(山东)新材料科技有限公司
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