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Corrosion-resistance magnetic material and preparing method thereof

A magnetic material and corrosion-resistant technology, which is applied in the manufacture of magnetic materials, magnetic objects, inductors/transformers/magnets, etc., can solve problems such as short service life and poor corrosion resistance, and achieve the goal of improving magnetic induction and strengthening corrosion resistance Effect

Inactive Publication Date: 2018-02-23
SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the disadvantages of poor corrosion resistance and short service life of magnetic materials in the prior art, the purpose of the present invention is to provide a corrosion-resistant magnetic material and a preparation method thereof, so as to improve the performance of the magnetic material in a corrosive environment and enhance its performance. Magnetic induction strength, prolong service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] S1: Add 10 parts of 3,4-dimethoxybenzaldehyde, 4 parts of 2-hydroxybenzylamine, 5 parts of 4-tert-butylphenol and 8 parts of 3-benzyloxypropionitrile into 30 parts of distilled water, and stir for 10 minutes ; Then add 10 parts of acetylsalicylic acid and 4 parts of tribromoethanol, raise the temperature to 50°C, and stir for 50 minutes;

[0021] S2: Add 10 parts of ferrous oxalate dihydrate and 4 parts of nickel methanesulfonate to step S1, raise the temperature to 100°C, and continue the reaction for 5 hours; after drying at 150°C and roasting at 250°C, mixed powder A is obtained;

[0022] S3: Add 15 parts of novolac epoxy resin and the mixed powder A obtained in step S2 into a ball mill and mix them to obtain the corrosion-resistant magnetic material. Among them, the ball milling conditions are: the ball-to-material ratio is 80:1, the vibration frequency is 1350 cycles / min, and the ball milling time is 2 hours.

Embodiment 2

[0024] S1: Add 15 parts of 3,4-dimethoxybenzaldehyde, 8 parts of 2-hydroxybenzylamine, 10 parts of 4-tert-butylphenol and 4 parts of 3-benzyloxypropionitrile into 40 parts of distilled water, and stir for 5 minutes ; Then add 8 parts of acetylsalicylic acid and 7 parts of tribromoethanol, raise the temperature to 60°C, and stir for 30 minutes;

[0025] S2: Add 12 parts of ferrous oxalate dihydrate and 8 parts of nickel methanesulfonate to step S1, raise the temperature to 120°C, and continue the reaction for 8 hours; after drying at 180°C and roasting at 200°C, mixed powder A is obtained;

[0026] S3: Add 20 parts of novolac epoxy resin and the mixed powder A obtained in step S2 into a ball mill and mix them to obtain the corrosion-resistant magnetic material. Among them, the ball milling conditions are: the ball-to-material ratio is 30:1, the vibration frequency is 1350 cycles / min, and the ball milling time is 8 hours.

Embodiment 3

[0028] S1: Add 12 parts of 3,4-dimethoxybenzaldehyde, 5 parts of 2-hydroxybenzylamine, 8 parts of 4-tert-butylphenol and 5 parts of 3-benzyloxypropionitrile into 40 parts of distilled water, and stir for 8 minutes ; Then add 8 parts of acetylsalicylic acid and 6 parts of tribromoethanol, raise the temperature to 60°C, and stir for 35 minutes;

[0029] S2: Add 12 parts of ferrous oxalate dihydrate and 7 parts of nickel methanesulfonate to step S1, raise the temperature to 105°C, and continue the reaction for 7 hours; after drying at 165°C and roasting at 240°C, mixed powder A is obtained;

[0030] S3: Add 18 parts of novolac epoxy resin and the mixed powder A obtained in step S2 into a ball mill and mix them to obtain the corrosion-resistant magnetic material. Among them, the ball milling conditions are: the ball-to-material ratio is 50:1, the vibration frequency is 1350 cycles / min, and the ball milling time is 4 hours.

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Abstract

The invention discloses a preparing method of a corrosion-resistance magnetic material. The preparing method comprises the following steps of adding 3,4-dimethoxy benzaldehyde, 2-hydroxybenzylamine, 4-tertiary butyl phenol and 3-benzyloxypropionitrile into distilled water, and stirring for 5-10 min; then adding acetylsalicylic acid and tribromoethanol, raising the temperature to 50-60 DEG C, and stirring to conduct a reaction for 30-50 min; adding ferrous oxalate dehydrate and nickel methyl sulfonate into the solution, raising the temperature to 100-120 DEG C, and continuously conducting a reaction for 5-8 h; drying at the temperature of 150-180 DEG C, and roasting at the temperature of 200-250 DEG C to obtain mixed powder A; adding novolac epoxy and the mixed powder A into a ball grindingmill to be mixed to obtain the corrosion-resistance magnetic material.

Description

technical field [0001] The invention belongs to the field of electronic materials, in particular to a corrosion-resistant magnetic material and a preparation method thereof. Background technique [0002] Magnetic materials can be divided into soft magnetic materials and hard magnetic materials according to the difficulty of demagnetization after magnetization. The material that is easy to demagnetize after magnetization is called soft magnetic material, and the material that is not easy to demagnetize is called hard magnetic material. Generally speaking, the remanence of soft magnetic materials is small, and that of hard magnetic materials is relatively large. Magnetic materials, commonly referred to as magnetic materials refer to strong magnetic substances, which are ancient and widely used functional materials. Magnetic materials were divided into ferrite, neodymium iron boron, samarium cobalt magnets, aluminum Five categories of nickel-cobalt magnets and iron-chromium-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/147H01F41/02
CPCH01F1/14733H01F41/0253
Inventor 邹黎清
Owner SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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