Polyaryl ether nitrile (PEN) and carbonyl iron powder (Fe(CO)5) composite magnetic material and preparation method thereof

A technology of composite magnetic material and carbonyl iron powder, which is used in the fields of magnetism of organic materials/organic magnetic materials, fibrous fillers, dyeing polymer organic compounds, etc.

Active Publication Date: 2012-11-14
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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However, the high-strength magnetic polymer materials based on s...

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  • Polyaryl ether nitrile (PEN) and carbonyl iron powder (Fe(CO)5) composite magnetic material and preparation method thereof
  • Polyaryl ether nitrile (PEN) and carbonyl iron powder (Fe(CO)5) composite magnetic material and preparation method thereof

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Embodiment Construction

[0017] A preparation method of polyarylether nitrile and carbonyl iron powder composite magnetic material, comprising the following steps:

[0018] Step 1: Surface modification of carbonyl iron powder.

[0019] Add carbonyl iron powder and 4,4-diaminodiphenylsulfone curing agent (DDS) to the molten phthalonitrile monomer, and prepolymerize at 200°C for 10 minutes, then the reaction product- The surface-modified carbonyl iron powder is cooled and dried for use; wherein the mass fraction of phthalonitrile monomer is 78.05~107.70 parts, the mass fraction of carbonyl iron powder is 97.56~538.46 parts, 4,4-di The amount of aminodiphenyl sulfone curing agent accounts for 2% of the mass sum of phthalonitrile monomer and carbonyl iron powder.

[0020] Step 2: blending and granulating the polyarylether nitrile resin matrix and the carbonyl iron powder inorganic filler.

[0021] The surface-modified carbonyl iron powder obtained in step 1 is used as an inorganic filler, blended and gr...

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Abstract

The invention discloses a PEN and Fe(CO)5 composite magnetic material and a preparation method thereof, and belongs to the technical field of magnetic polymer materials. PEN serves as an organic matrix, Fe(CO)5 serves as an inorganic filler, and the composite magnetic material is obtained after blending and prilling. Firstly, the Fe(CO)5 is subjected to surface modification, and a layer of phthalonitrile prepolymer is generated on the surface of the Fe(CO)5; due to a layer of organic matters rich in cyan coated on the surface, the Fe(CO)5 after surface modification can improve the interfacial adhesive force between the Fe(CO)5 inorganic filler and the PEN organic matrix, so that the PEN and the Fe(CO)5 are provided with a high-strength magnetic property while maintain an excellent mechanical property of the PEN after composition. According to the magnetic material and the preparation method thereof, the Fe(CO)5 can be filled as much as possible on the premise that the good mechanical property of the composite material is maintained, so that magnetic saturation strength of the composite material can be improved, the compatibility of inorganic fillers with polymers is improved, and processing defects are overcome.

Description

technical field [0001] The invention belongs to the technical field of magnetic polymer materials, and relates to a composite magnetic material of polyarylether nitrile and carbonyl iron powder and a preparation method thereof. Background technique [0002] Magnetic polymer materials are one of the materials that endow the traditional applications of magnetism and polymers with new meaning and content while continuously developing new application fields of magnetism and polymers (synthetic resin, rubber). Compared with traditional magnetic materials such as ferrite magnets, rare earth magnets, and alnico magnets, polymer magnetic materials overcome the shortcomings of being hard, brittle, and poor in processability, and have become a research hotspot in the field of polymers in recent years. Polymer magnetic materials are widely used in aerospace, automobiles, color TVs, computers, copiers and other fields because of their light specific gravity, easy processing into product...

Claims

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Application Information

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IPC IPC(8): C08L71/10C08K9/10C08K9/04C08K3/18C09C1/22C09C3/10H01F1/42
Inventor 刘孝波詹迎青赵睿
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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