Aliphatic chain ester metal complex modified material for macromolecule injection molding magnetic material

一种注塑磁性材料、金属络合物的技术，应用在材料科学领域，能够解决分散均匀度降低、磁粉和粘结剂相分散、磁性材料成型困难等问题

Inactive Publication Date: 2014-04-23
SHANGHAI BAOSHUO MAGNETIC MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The higher the magnetic powder content, the better the magnetic properties, but too high magnetic powder filling will increase the viscosity of the magnetic powder and binder mixture, the fluidity will be poor, and the dispersion uniformity will be reduced, making it difficult to process the mixture during injection molding. Difficulty forming magnetic materials
At present, most of the solutions use the method of adding modified materials to solve the problem of homogeneous dispersion of magnetic powder and binder. For example, the Chinese invention patent CN1645526A discloses a formula for injection molding ferrite permanent magnet materials, using organic external lubricants and Inorganic internal lubricants cooperate with each other to improve the fluidity of the pellets. Although this formula solves the problem of using nylon 12 as a binder to a certain extent, the lubricant used is conventional and has a good compatibility with polymers. Capacitive materials, but there is no effective interaction with metal magnetic powder, and the effect on improving the uniform dispersion of different components in the product is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: Starting from the ferrocene raw material, ferrocene formic acid was synthesized according to the scheme step 1, and the reaction temperature was 50 degrees Celsius. The obtained ferrocenecarboxylic acid is blended with n=8 fatty alcohol in a ratio of 1:1 according to the scheme step 2, and the catalyst ZnO (mass fraction 1%) is added, and the reaction temperature is 90 degrees Celsius, and the reaction generates ferrocenecarboxylic acid fatty alcohol ester in the form of liquid state. The obtained ferrocenecarboxylic acid fatty alcohol ester is the fatty chain ester metal complex modification auxiliary agent.

Embodiment 2

[0013] Embodiment 2: Starting from the ferrocene raw material, ferrocene formic acid was synthesized according to the scheme step 1, and the reaction temperature was 70 degrees Celsius. The obtained ferrocenecarboxylic acid is blended with n=36 fatty alcohol in a ratio of 1:1 according to the scheme step 2, and the catalyst ZnO (mass fraction 3%) is added, and the reaction temperature is 110 degrees Celsius, and the reaction generates ferrocenecarboxylic acid fatty alcohol ester in the form of solid state. The obtained ferrocenecarboxylic acid fatty alcohol ester is the fatty chain ester metal complex modified solid material.

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PUM

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Abstract

The invention relates to an aliphatic chain ester metal complex modified material for a macromolecule injection molding magnetic material, which aims at solving the problem of homodisperse of mixture of magnetic powder and binder in production of injection molding magnetic material. The aliphatic chain ester which is compatible to macromolecule is grafted on ferrocene so as to prepare the aliphatic chain ester metal complex modified material. Due to the added modified material, macromolecule and metal magnetic powder are mixed and are compatible more effectively, so that the dispersing evenness is improved, and the processability and usability of the product are further improved.

Description

technical field [0001] The invention belongs to the field of material science, and in particular relates to an aliphatic chain ester metal complex modified material for polymer injection molding magnetic materials. Background technique [0002] Injection magnetic material is a kind of magnetic material widely used at present. Injection magnetic material is a kind of bonded magnetic material, which is characterized in that polymer material (such as polymer, PPS, etc.) is used as binder and magnetic powder (such as ferrite magnetic powder, NdFeB magnetic powder) is mixed, Compared with sintered magnetic materials, the injection method in the polymer processing technology is used for production molding. Compared with sintered magnetic materials, the molding process of bonded magnetic materials is simple, and it is easy to manufacture magnetic material products with high dimensional accuracy and no need for secondary processing. The production efficiency is high and the cost is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/101C07F17/02
Inventor 耿保山刘淑英黄然
Owner SHANGHAI BAOSHUO MAGNETIC MATERIAL CO LTD
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