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Superstrong magnetic coating and preparation method thereof

A magnetic coating and super technology, applied in the field of coatings, can solve the problems of easy demagnetization, limited attraction, easy magnetization, etc., and achieve the effects of improved wear resistance and corrosion resistance, increased glass transition temperature, and increased thermal deformation temperature.

Inactive Publication Date: 2020-01-14
广东东明新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the magnetic powders added in the above two kinds of magnetic coatings are nanometer black magnetic powder and superparamagnetic iron tetraoxide magnetic nanoparticles. , Easy to demagnetize, it can only be attracted by hard magnetic materials such as magnets, and cannot attract other soft magnetic materials. If it is separated from the external magnetic field, it will lose its magnetism
Moreover, the content of magnetic powder added in the magnetic paint is low, resulting in the magnetic paint of the magnetic paint being very weak, and the attraction between the magnetic paint and the external magnet is limited, and it can only absorb and suspend very light substances, which greatly limits the application of the magnetic paint

Method used

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  • Superstrong magnetic coating and preparation method thereof
  • Superstrong magnetic coating and preparation method thereof

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Embodiment approach

[0030] In order to better illustrate the above-mentioned super-magnetic paint, to better understand the concept of the above-mentioned super-magnetic paint. In one embodiment, a super-strong magnetic coating includes the following raw materials in parts by weight: 30-50 parts of film-forming resin, 50-450 parts of permanent magnetic powder, 30-50 parts of diluent, 1-3 parts of defoamer, 3-5 parts of joint agent and 3-10 parts of toughening agent.

[0031] It should be noted that permanent magnetic powder is selected as the magnetic source in this super-strong magnetic coating. After being added to this coating, the permanent magnetic powder attracts each other, thereby locking the film-forming resin and greatly increasing the magnetic powder content. The highest magnetic powder content can account for the solid content of the coating. The permanent magnetic powder itself is a hard magnetic material, which is not easy to demagnetize after magnetization and can retain magnetism ...

Embodiment 1

[0052] S111, performing a magnetization operation on the permanent magnet powder, so as to enhance the magnetism of the permanent magnet powder.

[0053] S121, mix 15 parts of epoxy resin, 50 parts of NdFeB permanent magnet powder, 30 parts of acetone, 1 part of alcohol defoamer, 3 parts of silane coupling agent and 3 parts of carboxymethyl cellulose, add to high-speed shear In the machine, it was sealed and stirred at a speed of 1500 rpm for 6 hours to obtain a mixed solution.

[0054] S131, mixing 15 parts of epoxy resin with the mixed solution, adding it into a high-speed shearing machine, and sealing and stirring at a speed of 3000 rpm for 6 hours to obtain a super-strong magnetic coating.

Embodiment 2

[0056] S112, performing a magnetization operation on the permanent magnet powder, so as to enhance the magnetism of the permanent magnet powder.

[0057] S122, mix 25 parts of polyurethane resin, 450 parts of samarium cobalt permanent magnet powder, 50 parts of ethanol, 3 parts of phosphoric acid defoamer, 5 parts of titanate coupling agent and 10 parts of hydroxymethyl cellulose, and add to high-speed shear Inside the machine, it was sealed and stirred at a speed of 2000 rpm for 2 hours to obtain a mixed solution.

[0058] S132, mixing 25 parts of epoxy resin with the mixed liquid, adding to a high-speed shearing machine, sealing and stirring at a speed of 4000 rpm for 2 hours to obtain a super-strong magnetic coating.

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Abstract

The invention relates to the field of coatings, and discloses a superstrong magnetic coating and a preparation method thereof. The coating is prepared from the following raw materials in parts by weight: 30-50 parts of film-forming resin, 50-450 parts of permanent magnet powder, 30-50 parts of diluents, 1-3 parts of a defoaming agent, 3-5 parts of a coupling agent and 3-10 parts of a toughening agent. The preparation method includes the following steps that magnetizing operation is performed on the permanent magnetic powder; primary stirring operation is performed on the permanent magnetic powder, the diluent, the defoaming agent, the coupling agent, the toughening agent and part amount of the film-forming resin to enable the raw materials to be mixed uniformly to obtain mixed liquid; andsecondary stirring operation is performed on the mixed liquid and the remaining amount of the film-forming resin to enable the raw materials to be mixed uniformly to obtain the superstrong magnetic coating. The coating has higher magnetic powder content and higher magnetic absorption performance, can attract hard magnetic materials such as magnets, and can attract soft magnetic materials such as iron, cobalt and nickel, and the application range of magnetic coatings is greatly expanded.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a super-strong magnetic coating and a preparation method thereof. Background technique [0002] Magnetic paint is a kind of paint containing magnetic raw materials, which can be adsorbed by magnetic substances. All standard magnetic substances can be adsorbed on the magnetic paint. Magnetic functional coatings can greatly facilitate people's lives. They can be used as a primer in painting and used with colorful topcoats to increase the interior style and create a functional wall with both functionality and aesthetics. At the same time, the surface of the magnetic coating can absorb magnets, which helps to develop people's endless imagination and develop a decorative surface with a very personal style, which can be widely used in various occasions such as children's rooms, offices, kitchens, and study rooms. Magnetic paint has been widely favored by people in recent years due to the conc...

Claims

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Application Information

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IPC IPC(8): C09D5/23C09D163/00C09D175/04C09D161/06C09D133/04C09D183/04
CPCC08K2003/2265C08K2201/01C08L2205/03C09D5/23C09D133/04C09D161/06C09D163/00C09D175/04C09D183/04C08L1/286C08K3/38C08L63/00C08L1/284C08K3/08C08L75/04C08L29/04C08K3/22
Inventor 黄双武王军鹏况金权
Owner 广东东明新材科技有限公司
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