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Soft magnetic ferrite material for filter and preparation method thereof

A soft magnetic ferrite and filter technology, applied in the direction of magnetic properties of inorganic materials, can solve the problem of low absorbing performance, achieve the effects of improving mechanical strength, good adsorption capacity, and reducing production costs

Active Publication Date: 2020-07-10
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wave-absorbing performance of the currently commercially available soft ferrite is not high, and the wave-absorbing performance is fixed, and it is difficult to change it.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A soft magnetic ferrite material for a filter, including main materials, impurity materials and a template agent, wherein the template agent is methyl vinyl silicone rubber and modified jute, and the modified jute is surface-modified and magnetically modified from jute Obtained; the main ingredients include 20 parts of iron nitrate, 15 parts of nickel nitrate, 5 parts of zinc nitrate, and 6 parts of magnesium nitrate in molar parts, and the impurity materials include cobalt oxide, zirconium oxide, calcium carbonate, and barium oxide.

Embodiment 2

[0030] A soft magnetic ferrite material for a filter, including main materials, impurity materials and a template agent, wherein the template agent is methyl vinyl silicone rubber and modified jute, and the modified jute is surface-modified and magnetically modified from jute Obtain; The main ingredients include 25 parts of ferric nitrate, 10 parts of nickel nitrate, 8 parts of zinc nitrate, 3 parts of magnesium nitrate in molar parts, and the impurity materials include cobalt oxide, zirconium oxide, calcium carbonate, barium oxide; in addition, it also includes precipitation agent and auxiliary agent, the precipitating agent is sodium hydroxide, wherein the concentration of sodium hydroxide is 0.05mol / L, and the auxiliary agent is n-hexanol;

[0031] Among them, the weight ratio of main material, impurity material and template agent is 100:0.05:10, and the weight ratio of methyl vinyl silicone rubber and modified jute in template agent is 1:1;

[0032] The soft magnetic ferri...

Embodiment 3

[0037] A soft magnetic ferrite material for a filter, including main materials, impurity materials and a template agent, wherein the template agent is methyl vinyl silicone rubber and modified jute, and the modified jute is surface-modified and magnetically modified from jute Obtain; The main ingredients include 22 parts of ferric nitrate, 12 parts of nickel nitrate, 6 parts of zinc nitrate, 4 parts of magnesium nitrate in molar parts, and the impurity materials include cobalt oxide, zirconium oxide, calcium carbonate, barium oxide; in addition, it also includes precipitation Agent and auxiliary agent, precipitation agent is ammoniacal liquor, wherein the concentration of ammoniacal liquor is 15wt%, auxiliary agent is polyethylene glycol;

[0038] Among them, the weight ratio of main material, impurity material and template agent is 100:0.15:4, the weight ratio of methyl vinyl silicone rubber and modified jute in template agent is 1:3; , calcium carbonate, barium oxide weight ...

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PUM

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Abstract

The invention discloses a soft-magnetic ferrite material used in a wave filter, which includes a main material, a doping material and a template agent. The template agent includes methyl vinyl silicone rubber and modified jute. The modified jute is prepared through surface modification and magnetic modification to jute. The main material includes, by mole, 20-25 parts of ferric nitrate, 10-15 parts of nickel nitrate, 5-8 parts of zinc nitrate, and 3-6 parts of magnesium nitrate. The doping material comprises cobalt oxide, zirconium oxide, calcium carbonate and barium oxide. The invention also discloses a preparation method of the soft-magnetic ferrite material used in the wave filter. In the method, on the basis that the methyl vinyl silicone rubber and modified jute are used as the template agent, components and use amount and ratio of the main material and the doping material are controlled, so that the ferrite material is improved in wave absorbing performance and is broadened in wave absorbing bandwidth.

Description

technical field [0001] The invention relates to the technical field of soft ferrite materials, in particular to a soft ferrite material for filters and a preparation method thereof. Background technique [0002] The filter can effectively filter the frequency point of a specific frequency in the power line or frequencies other than this frequency point to obtain a power signal of a specific frequency or eliminate a power signal of a specific frequency. The basic ways to remove electromagnetic interference are: first: shielding or absorption - use electromagnetic wave absorbing materials or shielding materials to isolate conductors, components or circuit equipment from scattered electromagnetic fields; second: filtering - ferrite inductance and Capacitive components are connected to form an LC low-pass filter to attenuate high-frequency interference signals; the third type: through-core inductance—the ferrite magnetic ring is separately placed on the leads or cables of other ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/30C04B35/634C04B35/632H01F1/36
CPCC04B35/2658C04B35/2666C04B35/632C04B35/634C04B2235/3215C04B2235/3244C04B2235/3275C04B2235/442C04B2235/443C04B2235/6562C04B2235/6567H01F1/36
Inventor 瞿德林王久如王晓祥李丛俊
Owner ZHONGDE ELECTRONICS
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