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Water-based corrosion inhibition type rusted anti-rust coating and preparation method thereof

A rust-proof and corrosion-inhibiting technology, used in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve problems such as short service life, and achieve the effect of increasing anti-corrosion performance and improving anti-corrosion and anti-rust capabilities.

Active Publication Date: 2019-02-15
SHENYANG SHUNFENG IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the commonly used anti-rust primers on the market are added with anti-rust agent, but the anti-rust agent has no blocking effect in the face of further corrosion by corrosive ions, resulting in a short service life.

Method used

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  • Water-based corrosion inhibition type rusted anti-rust coating and preparation method thereof
  • Water-based corrosion inhibition type rusted anti-rust coating and preparation method thereof
  • Water-based corrosion inhibition type rusted anti-rust coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of "rust and anti-rust" functionalized cellulose-based airgel

[0030] (a) Add 30 parts of methyl cellulose and 300 parts of deionized water into a beaker, stir for 20 minutes with electromagnetic stirring at a stirring speed of 100 r / min, add 100 parts of ice cubes made of deionized water into the beaker after stirring Use a cell pulverizer to pulverize the cellulose solution with ice cubes at a pulverization power of 1000W for 20 minutes, add 10 parts of sodium tripolyphosphate and 10 parts of sodium molybdate to it, and ultrasonically vibrate for 10 minutes with an ultrasonic power of 100W to obtain a liquid A;

[0031] (b) Freeze liquid A into a solid in a refrigerator at minus 3°C, freeze for 12 hours, put the frozen solid in a freeze dryer for 12 hours, freeze the liquid A at minus 55°C, and vacuum at 10Pa to obtain a powder B;

[0032] (c) Take 30 parts of powder B and add it to a beaker containing 200 parts of absolute ethanol, stir, add 10 par...

Embodiment 2

[0039] (1) Preparation of "rust and anti-rust" functionalized cellulose-based airgel

[0040] (a) Add 50 parts of hydroxyethylcellulose cellulose and 500 parts of deionized water into a beaker, stir for 30 minutes with electromagnetic stirring at a stirring speed of 150 r / min, and add 150 parts of deionized water to it after the stirring is completed. Ice cubes and use a cell crusher to crush the cellulose solution with ice cubes, the crushing power is 1300W, crush for 35min, add 10 parts of sodium tripolyphosphate and 10 parts of sodium molybdate to it, and ultrasonically vibrate for 20min, the ultrasonic power is 80W , to get liquid A;

[0041](b) Freeze liquid A at minus 4°C for 20 hours to form a solid, put the frozen solid into a freeze dryer for 20 hours, freeze and dry it at minus 60°C, and vacuum at 10 Pa to obtain powder B;

[0042] (c) Add 30 parts of powder B into a beaker containing 200 parts of absolute ethanol, add 10 parts of 8-hydroxyquinoline into the beaker,...

Embodiment 3

[0049] (1) Preparation of "rust and anti-rust" functionalized cellulose-based airgel

[0050] (a) Add 50 parts of carboxymethyl cellulose and 500 parts of deionized water into a beaker, stir it electromagnetically for 40 minutes at a stirring speed of 200 r / min, and add 100 parts of deionized water to the beaker after stirring. Block and use a cell crusher to crush the cellulose solution with ice cubes, the crushing power is 1500W, crush for 30min, add 10 parts of sodium tripolyphosphate and 10 parts of sodium molybdate to it, and ultrasonically vibrate for 30min, the ultrasonic power is 100W, get liquid A;

[0051] (b) Freeze liquid A at minus 5°C for 24 hours into a solid, and put the frozen solid into a freeze dryer for 12 hours to freeze dry at minus 55°C and a vacuum of 10 Pa to obtain powder B;

[0052] (c) Add 30 parts of powder B to a beaker containing 200 parts of absolute ethanol, add 10 parts of 8-hydroxyquinoline to the beaker, add 10 parts of trishydroxymethylami...

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Abstract

The invention relates to the field of a coating, and discloses a preparation method of a water-based corrosion inhibition type rusted anti-rust coating. According to the invention, cellulose-based aerogel with a porous structure is prepared by adopting a freeze-drying method; water solubility of sodium molybdate and sodium tripolyphosphate is utilized, and in the process of preparing the cellulose-based aerogel, the sodium molybdate and the sodium tripolyphosphate are added, so that the sodium molybdate and the sodium tripolyphosphate which have a rusted anti-rust function are loaded on the cellulose-based aerogel; and insolubility between 8-hydroxyquinoline and water is utilized, the 8-hydroxyquinoline is fed into pore passages of the cellulose-based aerogel by adopting an ultrasonic oscillation method, so that the 8-hydroxyquinoline with a rusted anti-rust function is positioned inside the pore passages. The cellulose-based aerogel with three rusted anti-rust functional materials isfilled into water-based epoxy resin, and the rusted anti-rust materials are utilized to be chelated with metal to generate a passivation film to protect a metal matrix, so that the anti-corrosion anti-rust ability of the coating is improved greatly.

Description

technical field [0001] The invention relates to an antirust coating, in particular to a water-based corrosion-inhibiting antirust coating with rust and a preparation method thereof. Background technique [0002] The construction of ordinary anti-corrosion coatings has strict requirements on the construction base surface. In order to protect steel from corrosion and prolong its service life, anti-corrosion coating on steel has become an economical and effective method. In order to obtain excellent corrosion resistance, the rust on the steel must be removed before painting, otherwise the paint film and anti-corrosion effect will be poor due to the continuous expansion of the rust. Therefore, the rust removal treatment is an important part of the coating process Part, plays a decisive role in the success or failure of anti-corrosion coating. However, the traditional method of derusting has a narrow scope of application, high energy consumption, and high noise. The efficiency o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08
CPCC08K2003/324C09D5/08C09D163/00C08L1/28C08K3/32C08K3/24C08K5/3437C08L1/284C08L1/286
Inventor 王杨松付琬璐葛晶李娜陈栋
Owner SHENYANG SHUNFENG IND GRP CO LTD
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