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Coating for surface of magnetic roller of magnetic separator

A technology of magnetic separator and magnetic roller, which is applied in the direction of coating, polyurea/polyurethane coating, etc., can solve the problems of poor aging resistance, insufficient adhesion performance, short service life, etc., to reduce driving power and heat generation, Effective protection and long service life

Active Publication Date: 2022-06-28
宁波辰磁电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to solve the problem that the coatings used on the surface of magnetic rollers of magnetic separators on the market are more or less insufficient in adhesion performance, poor in aging resistance, prone to bulges and wear-through phenomena during use, and have a long service life. short technical question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A coating for the surface of a magnetic roller of a magnetic separator, comprising the following raw materials in parts by weight: 30 parts of terminal methacrylate group hyperbranched polythiourethane, 2 parts of allyl phenoxyacetate, 3 parts of N-(4-cyano-3-trifluoromethylphenyl) methacrylamide, 1 part of 2,4,6-trivinylboroxane, 5 parts of vinyl-terminated fluorosilicone, graphene 5 parts of coated nano aluminum powder, 2 parts of coupling agent, 0.5 part of defoamer, 0.3 part of leveling agent, 1 part of photoinitiator, 15 parts of filler, and 20 parts of solvent.

[0025] The solvent is a mixed solution formed by mixing ethyl acetate, butyl acetate and isopropanol in a mass ratio of 1:2:0.8; the filler is boron nitride, nano-boron fibers, ferric oxide, and glass powder by mass The mixture formed by mixing at a ratio of 1:0.8:2:1; the average diameter of the nanoboron fibers is 300nm, and the aspect ratio is 12:1; the particle size of the filler is 1100 mesh; the pho...

Embodiment 2

[0029] A coating for the surface of a magnetic roller of a magnetic separator, comprising the following raw materials in parts by weight: 32 parts of terminal methacrylate based hyperbranched polythiourethane, 2.5 parts of allyl phenoxyacetate, 4 parts of N-(4-cyano-3-trifluoromethylphenyl)methacrylamide, 1.2 parts of 2,4,6-trivinylboroxane, 6 parts of vinyl-terminated fluorosilicone, graphene 6.5 parts of coated nano aluminum powder, 2.5 parts of coupling agent, 0.6 parts of defoamer, 0.35 parts of leveling agent, 1.2 parts of photoinitiator, 16 parts of filler, and 22 parts of solvent.

[0030] The solvent is a mixed solution formed by mixing ethyl acetate, butyl acetate, and isopropanol in a mass ratio of 1.5:2:0.9; the filler is boron nitride, nano-boron fibers, ferric tetroxide, and glass powder by mass. The mixture is formed by mixing at a ratio of 1:0.9:2.2:1.5; the average diameter of the boron nanofibers is 350 nm, the aspect ratio is 14:1; the particle size of the fi...

Embodiment 3

[0034] A coating for the surface of a magnetic roller of a magnetic separator, comprising the following raw materials in parts by weight: 35 parts of terminal methacrylate based hyperbranched polythiourethane, 3 parts of allyl phenoxyacetate, 4.5 parts of N-(4-cyano-3-trifluoromethylphenyl)methacrylamide, 1.5 parts of 2,4,6-trivinylboroxane, 6.5 parts of vinyl-terminated fluorosilicone, graphene 7.5 parts of coated nano aluminum powder, 3 parts of coupling agent, 0.65 parts of defoamer, 0.4 parts of leveling agent, 1.5 parts of photoinitiator, 17 parts of filler, and 25 parts of solvent.

[0035] The solvent is a mixed solution formed by mixing ethyl acetate, butyl acetate, and isopropanol in a mass ratio of 2:2:1; the filler is boron nitride, nanoboron fibers, ferric tetroxide, and glass powder by mass A mixture formed by mixing in a ratio of 1:1:2.5:2; the average diameter of the boron nanofibers is 400 nm, and the aspect ratio is 16:1; the particle size of the filler is 1300 ...

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Abstract

The invention discloses a coating for the surface of a magnetic roller of a magnetic separator, and the coating is prepared from the following raw materials in parts by weight: 30-40 parts of methacrylate-terminated hyperbranched polythionocarbamate, 2-4 parts of allyl phenoxyacetate, 3-6 parts of N-(4-cyano-3-trifluoromethylphenyl) methacrylamide, 3-6 parts of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, 3-6 parts of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, 3-6 parts of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, the invention relates to a graphene-coated nano aluminum powder coating which is prepared from the following components in parts by weight: 1-2 parts of 2, 6-trivinyl boroxane, 5-8 parts of vinyl-terminated fluorosilicone oil, 5-10 parts of graphene-coated nano aluminum powder, 2-4 parts of a coupling agent, 0.5-0.8 part of a defoaming agent, 0.3-0.5 part of a flatting agent, 1-2 parts of a photoinitiator, 15-20 parts of filler and 20-30 parts of a solvent. The invention further discloses a preparation method of the coating for the surface of the magnetic roller of the magnetic separator. The coating for the surface of the magnetic roller of the magnetic separator, disclosed by the invention, is sufficient in adhesion performance, excellent in aging resistance and wear resistance, remarkable in protection effect on the magnetic roller of the magnetic separator and long in service life.

Description

technical field [0001] The invention relates to the technical field of magnetic separator equipment, in particular to a coating for the surface of a magnetic roller of a magnetic separator. Background technique [0002] In recent years, with the rapid development of the magnetic separation industry, the magnetic separator has attracted great attention. It has been widely used in resource recovery, wood industry, mining, kiln industry, chemical industry, food and other factories. It is suitable for particle size below 3mm. Wet magnetic separation of magnetite, pyrrhotite, roasting ore, ilmenite and other materials, and also used for iron removal of coal, non-metallic ores, building materials and other materials. It is the most widely used and versatile in the industry. One of the tallest models. [0003] The magnetic roller is one of the important parts of the magnetic separator, it not only affects the working efficiency of the magnetic separator, but also determines the so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/61C09D183/08C09D7/62
CPCC09D175/14C09D7/61C09D7/62C09D7/70C08K2201/011C08K2003/385C08K2003/2275C08K2003/0812C08L83/08C08K3/38C08K7/06C08K3/22C08K3/40C08K9/10C08K3/042C08K3/08
Inventor 宓建峰
Owner 宁波辰磁电子科技有限公司
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