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Preparation method of metal anti-corrosion coating

A metal anti-corrosion and coating technology, which is applied in the direction of anti-corrosion coatings, metal layered products, coatings, etc., can solve problems such as metal anti-corrosion coatings that have not yet been seen, and achieve excellent anti-corrosion performance, good society, and uniform anti-corrosion coatings Effect

Active Publication Date: 2014-05-28
CHINA TOBACCO HENAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the research in this area is still in the exploratory stage, there has not been a relatively mature report on the use of zeolite molecular sieves to prepare metal anti-corrosion coatings.

Method used

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  • Preparation method of metal anti-corrosion coating
  • Preparation method of metal anti-corrosion coating
  • Preparation method of metal anti-corrosion coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of metal anticorrosion coating comprises the following steps:

[0023] (1) Preparation of synthetic liquid gel, said synthetic liquid gel is a mixture of tetrapropylammonium hydroxide, ethyl orthosilicate and water, in terms of molar ratio, tetrapropylammonium hydroxide: ethyl orthosilicate Ester: water = 0.36: 1: 20; after the synthetic liquid gel is prepared, it is aged at room temperature for 24 hours;

[0024] (2) Dilute the synthetic liquid gel prepared in step (1) with a diluent, the diluent is methanol, and dilute with equal volume. After dilution, the synthetic liquid gel is evenly coated on the surface of the metal substrate, and after drying, a uniform gel with a flat surface is obtained. The metal substrate of the adhesive layer; the metal substrate is aluminum alloy, the model is 1060;

[0025] (3) Add the reaction medium in the reaction kettle, the reaction medium is 0.5g water; put the metal substrate with a flat and uniform gel lay...

Embodiment 2

[0027] The preparation method of the metal anti-corrosion coating provided in this embodiment is the same as in Example 1, and the formula of the synthetic liquid gel in the adjustment step (1) is, in terms of molar ratio, tetrapropylammonium hydroxide: tetraethyl orthosilicate : water = 0.30: 1: 14; adjust the diluent to ethanol solution and dilute with equal volume.

Embodiment 3

[0029] This example is the same as the preparation method of the metal anti-corrosion coating provided in Example 1, and the reaction medium in the reaction kettle in the step (3) is adjusted to 0.5 g of ethylenediamine solution with a mass fraction of 10%.

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Abstract

The invention belongs to the field of metal anti-corrosion technology, and particularly relates to a preparation method of a metal anti-corrosion coating. The preparation method comprises three steps: preparing synthetic lyogel, coating a metal matrix and performing a hydro-thermal synthetic reaction, wherein the synthetic lyogel is the mixture of tetrapropyl ammonium hydroxide, ethyl orthosilicate and water. The preparation method adopts the gel conversion method to synthesize an MFI-type molecular sieve anti-corrosion membrane on the surface of the metal matrix in order to eliminate defects that possibly exist on the surface of the metal matrix; the prepared anti-corrosion coating is uniform, continuous and compact; practical anti-corrosion performance examinations prove that the prepared molecular sieve membrane is excellent in anti-corrosion performance and good in repeatability; the preparation method can completely replace the conventional metal anti-corrosion technology; moreover, a zeolite molecular sieve membrane is environment-friendly and does not pollute the environment, so that the preparation method has better social, environmental and economic benefits.

Description

Technical field [0001] The present invention is a metal anticorrosive technology field, which involves a preparation method for a metal anticorrosive coating. Background technique [0002] Metal corrosion is a common problem, so the research of metal anticorrosive layers is very important.Protecting metal by using a membrane is a common method. There are many types of metal anticorrosive membranes. There are also many types of metal anticorrosive membranes, mainly in coatings, anode film, and electroplating. [0003] At present, countries around the world have competed to develop a variety of well -known anti -corrosive coating varieties, which are widely used in various corrosive environments, and have produced obvious economic and social benefits.However, while protecting metal substrates such as steel and steel, the currently widely used solvent -based anti -corrosion coatings also greatly destroy the natural environment that humans live in survival.There are still some proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B33/00B32B15/04C09D1/00C09D5/08
Inventor 董艳娟王正宝马宇平聂聪田海英周浩张展张东豫
Owner CHINA TOBACCO HENAN IND
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