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Self-repairing conversion permeation type antirust coating based on rusty matrix and preparation method thereof

An anti-rust coating and self-repairing technology, which is applied in the field of anti-corrosion coatings, can solve the problems of complex construction and difficult control of the proportion, and achieve the effect of prolonging the service life

Inactive Publication Date: 2020-11-27
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] Compared with the stable anti-rust coatings for substrates with rust, the application range of anti-rust coatings for substrates with penetration and transformation is wider. If you want to take advantage of the advantages of the penetrating and transformation-type antirust coatings for rusty substrates, the existing method is to apply two coatings with different functions on the rusty substrates in stages. This method is complicated to construct; some scholars try to imagine Mixing two kinds of paint together and coating directly, although it seems to reduce the process, but the mixed use of two different functional paints is not easy to control the mixing ratio on site, and it is also unpredictable whether the combined use will affect each other

Method used

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  • Self-repairing conversion permeation type antirust coating based on rusty matrix and preparation method thereof
  • Self-repairing conversion permeation type antirust coating based on rusty matrix and preparation method thereof
  • Self-repairing conversion permeation type antirust coating based on rusty matrix and preparation method thereof

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Embodiment Construction

[0056] The technical scheme of the present invention is described below according to the detailed preparation method.

[0057] First prepare the rust-reducing agent: according to the mass ratio of phosphoric acid and potassium ferrocyanide is 7:1. Weigh phosphoric acid and put it into a container and stir it with a magnetic stirrer. Slowly add potassium ferrocyanide into phosphoric acid to prevent ferrocyanide Potassium chloride agglomerated, sealed after adding and continued to stir for about 1.5h. Pour into an airtight container when done.

[0058] Preparation method of self-repairing conversion penetrating antirust coating based on rusty substrate:

[0059] Step 1: Preparation of self-healing microcapsules

[0060] 1.1: Mix 5.00kg of urea and 10L of formaldehyde solution with a concentration of 37%, add to the container and stir to dissolve, adjust the pH value to 8-9 with triethanolamine, heat in a water bath at 70°C for 1 hour to prepare a urea-formaldehyde resin prepol...

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Abstract

The invention discloses a self-repairing conversion penetration type antirust coating based on a rusty matrix and a preparation method thereof. The self-repairing conversion penetration type antirustcoating is composed of an antirust primer and self-repairing microcapsules. The coating has permeation and self-repairing effects, eleostearic acid contained in the tung oil in the capsule core of theself-repairing microcapsule can also play a role in converting a rust layer, and therefore the purpose of self-repairing of the antirust coating is further achieved on the basis of inheriting the advantages of permeation type and conversion type antirust coating for a rusty matrix.

Description

technical field [0001] The invention belongs to the field of anti-corrosion coatings, and in particular relates to a self-repairing conversion penetration type anti-rust coating based on a rusty substrate and a preparation method thereof. The prepared coating has self-repairing and excellent anti-corrosion properties. Background technique [0002] Affected by the rapid development of the modern metal industry, various metal industries have begun to focus on the anti-corrosion and protection of metal materials. Because of its excellent performance, steel plays a very important role in all aspects of human society. There are a large number of engineering buildings that use steel as the main body. [0003] But the biggest disadvantage of steel is that it is easy to rust, which will bring safety hazards and cause economic losses. Among the many anti-corrosion measures, anti-corrosion coatings are the most effective, economical and widely used. The traditional anti-corrosion co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/61C09D7/65B01J13/02C08G12/12
CPCB01J13/02C08G12/12C08K2003/2272C08K2003/327C08K2003/328C08K2003/329C09D5/08C09D163/00C09D7/61C09D7/65C09D7/70C08L91/005C08L61/24C08K3/32C08K3/22C08K3/28
Inventor 何海峰韩瑞刘欣
Owner SHANDONG UNIV OF SCI & TECH
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