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Self-repairing self-lubricating bifunctional anticorrosive coating and preparation method thereof

An anti-corrosion coating and self-healing technology, applied in anti-corrosion coatings, coatings, epoxy resin coatings, etc., can solve the problem of no dual-function anti-corrosion coating, and achieve the effect of smooth appearance, extended service life and low cost

Inactive Publication Date: 2019-07-05
GUANGXI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology is limited to the relevant research on self-healing anti-corrosion coatings and self-lubricating coatings, but has not conducted too much research on dual-function anti-corrosion coatings with self-healing and self-lubricating properties

Method used

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  • Self-repairing self-lubricating bifunctional anticorrosive coating and preparation method thereof
  • Self-repairing self-lubricating bifunctional anticorrosive coating and preparation method thereof
  • Self-repairing self-lubricating bifunctional anticorrosive coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The self-healing and self-lubricating dual-function microcapsules include the following raw materials in parts by weight: 100 parts of water, 30 parts of linseed oil, 20 parts of solvent, 20 parts of emulsifier, 5 parts of isocyanate and 5 parts of polyol.

[0027] The preparation method of self-repairing, self-lubricating bifunctional microcapsules comprises the following steps:

[0028] (1) Mix water and emulsifier, continue to stir at room temperature for 60min, and the stirring rate is 1000rpm;

[0029] (2) Polyhydric alcohol is dissolved in 10 parts of water to obtain polyhydric alcohol aqueous solution;

[0030] (3) Mix the isocyanate with the solvent, add linseed oil after continuous stirring for 5 minutes, continue stirring for 5 minutes, and the stirring rate is 500 rpm;

[0031] (4) Add the mixed solution obtained in step (3) into the aqueous emulsifier solution obtained in step (1), and continue to stir for 10 minutes at a stirring rate of 1000 rpm;

[0032...

Embodiment 2

[0036] The self-healing and self-lubricating dual-function microcapsules include the following raw materials in parts by weight: 100 parts of water, 30 parts of linseed oil, 20 parts of solvent, 30 parts of emulsifier, 8 parts of isocyanate and 5 parts of polyol.

[0037] The preparation method of self-repairing, self-lubricating bifunctional microcapsules comprises the following steps:

[0038] (1) Mix water and emulsifier, continue to stir at room temperature for 60min, and the stirring rate is 1000rpm;

[0039] (2) Polyhydric alcohol is dissolved in 10 parts of water to obtain polyhydric alcohol aqueous solution;

[0040] (3) Mix the isocyanate with the solvent, add linseed oil after continuous stirring for 5 minutes, continue stirring for 5 minutes, and the stirring rate is 500 rpm;

[0041] (4) Add the mixed solution obtained in step (3) into the aqueous emulsifier solution obtained in step (1), and continue to stir for 10 minutes at a stirring rate of 1500 rpm;

[0042...

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Abstract

The invention discloses a self-repairing and self-lubricating bifunctional anticorrosive coating and a preparation method thereof and relates to the technical field of intelligent coatings. The anticorrosive coating comprises high-molecular resin and self-repairing and self-lubricating bifunctional microcapsules loaded in the resin. The bifunctional microcapsules are prepared by taking polyurethane as a wall material and linseed oil as a core material and adopting an interfacial polymerization method. The prepared bifunctional microcapsules have smooth and flat surfaces and are narrow in particle size distribution, high in core material content, stable in chemical structure, good in thermal stability and good in compatibility with high-molecular resin. The self-repairing and self-lubricating bifunctional anti-corrosion coating can respond to damage in time, self-lubrication and self-repair of the anti-corrosive coating are effectively achieved, and service life of the coating is prolonged.

Description

technical field [0001] The invention relates to the technical field of intelligent coatings, in particular to a self-repairing and self-lubricating dual-function anti-corrosion coating and a preparation method thereof. Background technique [0002] Metal corrosion pervades all fields of the national economy, and the direct economic loss caused by the scrapping of equipment due to corrosion accounts for about 1% to 4% of GDP. In order to prevent and slow down corrosion, many anticorrosion methods have been studied. Among them, one of the most effective and economical anti-corrosion methods is to coat the metal surface with a polymer anti-corrosion coating. However, the working environment of the anti-corrosion coating is harsh and harsh, and it is often cracked and damaged due to external force and aging, thus losing the anti-corrosion effect. [0003] Smart coatings are innovative coatings that respond to changes in the external environment in a controlled manner thanks to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/65
CPCC09D5/08C09D163/00C09D7/65C08L91/005
Inventor 李伟洲杨海娟莫秋凤谷凤媚韦景泉张宇杰邹志帆
Owner GUANGXI UNIV
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