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A kind of injection molding plastic and soft magnetic powder composite material and preparation method thereof

A composite material and injection molding technology, which is applied in the fields of inorganic material magnetism, inductance/transformer/magnet manufacturing, electrical components, etc., can solve problems such as the difficulty in preparing soft magnetic materials with high powder content and three-dimensional structure, and improve interface compatibility problem, increase fill rate, increase compatibility effect

Active Publication Date: 2018-01-02
SHENZHEN PENGHUI FUNCTIONAL MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a composite material of injection molding plastic and soft magnetic powder, aiming to solve the problem that it is difficult to prepare a complex three-dimensional structure soft magnetic material with high powder content and high performance in the prior art

Method used

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  • A kind of injection molding plastic and soft magnetic powder composite material and preparation method thereof
  • A kind of injection molding plastic and soft magnetic powder composite material and preparation method thereof
  • A kind of injection molding plastic and soft magnetic powder composite material and preparation method thereof

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preparation example Construction

[0033] And, the embodiment of the present invention also provides a preparation method of injection molding plastic and soft magnetic powder composite material, comprising the following steps:

[0034] S01. Weigh each component according to the formula of the above-mentioned injection molding plastic and soft magnetic powder composite material;

[0035] S02. dissolving the coupling agent in a solvent to form a coupling agent solvent;

[0036] S03. After mixing the soft magnetic powder with the coupling agent solvent, heat treatment is performed to obtain a soft magnetic powder coating;

[0037] S04. Perform banburying and mixing treatment on the soft magnetic powder coating body, high fluidity plastics, plasticizer, and antioxidant to obtain a rubber compound;

[0038] S05. Extrude and granulate the mixed rubber after crushing.

[0039] In the above step S01, the formulation components of the injection-molded plastic and soft magnetic powder composite material and their pref...

Embodiment 1

[0048] An injection molding plastic and soft magnetic powder composite material, comprising the following components in the following parts by weight:

[0049]

[0050] In the composite material, the soft magnetic powder is coated with a coupling agent solvent to form a soft magnetic powder coating body,

[0051] Wherein, the soft magnetic powder is manganese zinc ferrite magnetic powder, the high fluidity plastic is polyphenylene sulfide; the coupling agent is a silane coupling agent, the solvent is deionized water, and the plasticizer It is epoxidized soybean oil, and the antioxidant is N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine.

[0052] The preparation method of the injection molding plastic and soft magnetic powder composite material comprises the following steps:

[0053] S11. Mix and stir 0.08 parts by mass of silane coupling agent and 8 parts of deionized water at room temperature to form a solution;

[0054] S12. Stir and mix th...

Embodiment 2

[0060] An injection molding plastic and soft magnetic powder composite material, comprising the following components in the following parts by weight:

[0061]

[0062] In the composite material, the soft magnetic powder is coated with a coupling agent solvent to form a soft magnetic powder coating body,

[0063] Wherein, the soft magnetic powder is sendust magnetic powder, the high fluidity plastic is nylon; the coupling agent is a silane coupling agent, the solvent is deionized water, and the plasticizer is epoxy soybean oil , the antioxidant is N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylenediamine.

[0064] The preparation method of the injection molding plastic and soft magnetic powder composite material comprises the following steps:

[0065] S21. Mix and stir 0.09 parts by mass of silane coupling agent and 9 parts of deionized water at room temperature to form a solution;

[0066] S22. The solution prepared in step 1 is stirred and mixed wi...

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Abstract

The invention provides a composite material of injection-molded plastic and soft magnetic powder and a preparation method of the composite material. The composite material comprises the following components in parts by weight: 80-90 parts of soft magnetic powder, 8-18 parts of high-fluidity plastic, 0.08-0.09 part of a coupling agent, 8-9 parts of a solvent, 1-2 parts of a plasticizer and 0.1-0.3 part of an antioxidant, wherein the melt index of the high-fluidity plastic under the conditions of 300 DEG C and 2.16Kg is greater than or equal to 30g / 10min; and the soft magnetic powder is coated with the coupling agent and the solvent to form a soft magnetic powder coating in the composite material.

Description

technical field [0001] The invention belongs to the field of soft magnetic materials, in particular to an injection-molded plastic and soft magnetic powder composite material and a preparation method thereof. Background technique [0002] Soft magnetic materials refer to magnetic materials with low coercive force and high magnetic permeability, which are widely used in the fields of inductive materials, wave absorbing materials and magnetic isolation materials. The composition of soft magnetic materials mainly includes iron-based metal alloys, ferrite, and carbonyl iron powder. Among them, iron-based metal alloys mainly include iron-silicon, iron-silicon-aluminum, iron-silicon-chromium, iron-nickel, iron-nickel-molybdenum, etc. Ferrite mainly includes manganese zinc ferrite and nickel zinc ferrite. [0003] At present, there are many soft magnetic molding processes, mainly including the following: compression molding + sintering process; tape casting + sintering process; ta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/12H01F1/33H01F41/00
CPCH01F1/12H01F1/33
Inventor 李立星
Owner SHENZHEN PENGHUI FUNCTIONAL MATERIAL CO LTD
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