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Preparation method of nano-magnets

A nano-magnet and the technology of preparation steps, which are applied in the manufacture of inductors/transformers/magnets, magnetic materials, magnetic objects, etc., can solve the problems of low saturation magnetic flux density of magnets, and achieve high saturation magnetic flux density and increase saturation magnetic flux density. , the effect of combining

Inactive Publication Date: 2018-01-26
常州市沃兰特电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem mainly solved by the present invention is to provide a preparation method of a nano-magnet for the defect of low saturation magnetic flux density of the magnet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] In parts by weight, dissolve 10 parts of ferric chloride and 5 parts of cobalt chloride hexahydrate in 100 parts of distilled water in a beaker to obtain a mixed solution, which is transferred to a three-necked flask with a stirrer and a reflux device , add 40 parts of sodium hydroxide solution with a mass fraction of 30% to the three-necked flask, start the stirrer at the same time, stir at a speed of 400r / min, heat up to 90°C, keep warm and reflux for 1h, and get a black residue in the three-necked flask ;Wash the black residue with distilled water until the washing solution is neutral, then use a permanent magnet to absorb and separate the black residue to obtain the adsorbate, wash the adsorbate with absolute ethanol for 3 times, place the adsorbate in a vacuum drying oven, and heat up to 90°C , and dried for 18 hours to obtain cobalt tetraoxoferrate; weigh 30g of cobalt tetraoxyferrate and 20g of silica gel powder to obtain a mixed powder, dissolve the mixed powder ...

example 2

[0028]In parts by weight, 12 parts of ferric chloride and 7 parts of cobalt chloride hexahydrate are dissolved in 110 parts of distilled water in a beaker to obtain a mixed solution, which is transferred to a three-necked flask with a stirrer and a reflux device , add 45 parts of sodium hydroxide solution with a mass fraction of 30% to the three-necked flask, start the stirrer at the same time, stir at a speed of 420r / min, heat up to 95°C, keep warm and reflux for 1.5h, and get black in the three-necked flask residue; wash the black residue with distilled water until the washing solution is neutral, and separate the black residue with permanent magnet adsorption to obtain the adsorbate, wash the adsorbate with absolute ethanol 4 times, place the adsorbate in a vacuum drying oven, and heat up to 95 ℃, dried for 20 hours to obtain cobalt tetraoxoferrate; weigh 35g of cobalt tetraoxyferrate and 22g of silica gel powder to obtain mixed powder, dissolve the mixed powder in 170mL dis...

example 3

[0030] In parts by weight, dissolve 15 parts of ferric chloride and 10 parts of cobalt chloride hexahydrate in 120 parts of distilled water in a beaker to obtain a mixed solution, which is transferred to a three-necked flask with a stirrer and a reflux device , add 50 parts of sodium hydroxide solution with a mass fraction of 30% to the three-necked flask, start the stirrer at the same time, stir at a speed of 450r / min, heat up to 100°C, keep warm and reflux for 2 hours, and get a black residue in the three-necked flask ;Wash the black residue with distilled water until the washing solution is neutral, then use a permanent magnet to absorb and separate the black residue to obtain the adsorbate, wash the adsorbate with absolute ethanol for 5 times, place the adsorbate in a vacuum drying oven, and heat up to 100°C , and dried for 24 hours to obtain cobalt tetraoxoferrate; weigh 40g of cobalt tetraoxyferrate and 25g of silica gel powder to obtain a mixed powder, dissolve the mixed...

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Abstract

The invention discloses a preparation method of nano-magnets and belongs to the technical field of industrial preparation. Compared with ordinary magnets, the same-volume nano-magnets in a magnetic field generate more molecules with the molecular circulation effect, molecular current density generated is greater, ultrafine magnetic powder is in alignment in crystals of silicon dioxide, and coverage of electronic shield effect generated in an overlapping manner among molecular circulation is weakened. A sweet wormwood extract added is rich in artemisinin which is of an alcohol peroxide compoundand has good antimicrobial resistance, hydrogen bonds exist between the artemisinin and silicon dioxide molecules in the nano-magnets, and contact molecular binding is achieved; in the magnetic field, high-valence metal ions in the ultrafine magnetic powder are easy to attract electrons in alcohol peroxide, the electrons finally return to the alcohol peroxide through hole conduction of the crystals of the silicon dioxide, molecular pathways are formed through circulation, conduction velocity of the electrons is fastened, strength of molecular circulation is increased, and saturation magneticflux density of the nano-magnets is improved.

Description

technical field [0001] The invention discloses a preparation method of a nanometer magnet, which belongs to the technical field of industrial preparation. Background technique [0002] A magnet is an object that can generate a magnetic field. It is a magnetic dipole. The composition of the magnet is iron, cobalt, nickel and other atoms. , cobalt and other metals. [0003] Magnets are classified by shape: square magnets, tile-shaped magnets, special-shaped magnets, cylindrical magnets, ring magnets, disc magnets, bar magnets, magnetic frame magnets, attribute magnets: SmCo magnets, NdFeB magnets (strong magnets), ferrite magnets, alnico magnets, iron chromium cobalt magnets, magnets by industry: magnetic components, motor magnets, rubber magnets, plastic magnets, etc. Magnets are divided into "permanent magnets" and "non-permanent magnets". Permanent magnets can be natural products, also known as natural magnets, or artificially manufactured. Non-permanent magnets, such a...

Claims

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Application Information

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IPC IPC(8): H01F41/02H01F1/00
Inventor 徐啸飞何俊欣陈莉莉
Owner 常州市沃兰特电子有限公司
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