Preparation method of metal organic framework/ water-borne anti-corrosive coating

A metal-organic framework and anti-corrosion coating technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of increased difficulty in the coating synthesis process, agglomeration, sphere rupture, etc., to eliminate the decline in anti-corrosion effect and the brushing process simplistic effect

Active Publication Date: 2015-08-26
CHANGCHUN SHUNFENG XINCHENG BUILDING MATERIAL CO LTD
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Problems solved by technology

At present, there are three main methods to enhance the barrier properties of coatings: the first is to introduce nano-inorganic particles. Although this method is helpful to the barrier properties of water-based coatings, the poor compatibility between inorganic particles and organic coatings is likely to cause agglomeration, which makes the synthesis of coatings difficult. The difficulty of the process is greatly increased
The second method is to add nano-organic microspheres, which solves the compatibility problem between the filler and the matrix resin. However, due to the low mechanical strength of the or

Method used

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  • Preparation method of metal organic framework/ water-borne anti-corrosive coating
  • Preparation method of metal organic framework/ water-borne anti-corrosive coating

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Embodiment 1

[0026] Example 1;

[0027] (1) Modification of metal-organic frameworks:

[0028] 1) Weigh 0.1~0.2g Tris at room temperature, dissolve it in 80~100mL water, then add 0.1~1mol / L hydrochloric acid solution to adjust the pH of the buffer solution to 8.5, weigh a certain amount of dopamine and dissolve it in the above buffer In the solution, the concentration of the dopamine buffer solution is controlled within 2 to 6 mg / mL;

[0029] 2) Put the metal-organic framework material into the buffer solution of dopamine, and place it in an ultrasonic environment for modification,

[0030] In order to obtain the metal-organic framework material loaded with dopamine.

[0031] (2) Preparation of anti-corrosion coating:

[0032] 1) Take 100 parts of water-based epoxy resin and 100 parts of water,

[0033] 2) Take 35 parts of dopamine-loaded metal-organic framework fillers, add them to the above resin system, and disperse them in a ball mill for 1 hour. Take 5...

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Abstract

The invention discloses a preparation method of a metal organic framework/water-based anti-corrosive coating. The composite coating is formed by compounding a coordination compound of a metal organic framework (MOFs) and water-borne epoxy resin. As a novel organic hybrid material, the coordination compound of a metal organic framework (MOFs) has high void ratio and adjustability of hole dimension and shape; when the material gets the outside stimulation (such as pressure, light, chemical stimulation of a guest molecule), the framework shape can be changed. The preparation method introduces the metal organic framework material to an anti-corrosive coating system, thus the crosslinking density of the coating can be added, the corrosive particles can be absorbed; besides, the preparation method overcomes the shortcoming of poor barrier property and short anti-corrosive cycle which are generally existed in the water-borne anti-corrosive coating at present, and greatly improve the anti-corrosive performance of the anti-corrosive coating.

Description

technical field [0001] The invention relates to a preparation method of a coating, in particular to a preparation method of a metal organic framework / water-based anticorrosion coating. Background technique [0002] Metals and their alloys are still the most important structural materials, so metal corrosion is still one of the most noticeable problems. The great harm of corrosion is not only reflected in economic losses, but also brings heavy casualties, environmental pollution, waste of resources, hinders the development of new technologies, and promotes the loss of natural resources. Therefore, taking protective measures is of great significance to economic construction. There are many ways to prevent metal corrosion, but considering the needs of economy, convenience and national economic development, coatings have become the first choice to solve corrosion problems. [0003] In recent years, due to the restrictions on the volatilization of organic solvents by nation...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08
Inventor 王娜付琬璐张静
Owner CHANGCHUN SHUNFENG XINCHENG BUILDING MATERIAL CO LTD
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