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Magnetic rubber having high magnetic flux density and preparation method thereof

A technology of magnetic induction intensity and magnetic rubber, which is applied in the field of composite materials, can solve the problems of poor magnetic induction intensity and flexible elastic performance, and achieve the effect of good flexible elastic performance, simple process flow and less equipment

Inactive Publication Date: 2008-07-30
杨中联
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects of poor magnetic induction intensity and flexible elastic performance of the magnetic rubber in the prior art, the present invention provides a magnetic rubber capable of making the magnetic induction intensity of special-shaped products reach more than 600 gauss and good flexible elastic performance and its preparation method

Method used

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  • Magnetic rubber having high magnetic flux density and preparation method thereof
  • Magnetic rubber having high magnetic flux density and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Take the strontium ferrite magnetic powder in Example 1 of the above table 1 and put it in a grinder to grind it into a magnetic powder with a particle size of 100-300 mesh, and then use a silane coupling agent that accounts for 0.5% by weight of the strontium ferrite magnetic powder. Ferrite magnetic powder carries out surface modification treatment, and surface modification treatment is carried out according to the method for the surface treatment of inorganic filler conventional in rubber industry; Then get other composition and natural rubber in the embodiment 1 of table 1, after it is pulverized and above-mentioned after grinding The strontium ferrite magnetic powder is fully mixed; the mixed ingredients are put into the rubber mixer, and at room temperature, the rubber is mixed for 50 minutes under the action of the upper roller of the rubber mixer, and then it is ground into a synthetic Paste block; put the above-mentioned paste block composition after rubber mixi...

Embodiment 2

[0041] Take the barium ferrite magnetic powder in Example 2 of Table 1 above and put it in a grinder to grind it into a magnetic powder with a particle size of 100-300 mesh, and then use a titanate coupling agent accounting for 1% by weight of the barium ferrite magnetic powder Carry out surface modification treatment to barium ferrite magnetic powder, surface modification treatment is carried out according to the method for surface treatment of inorganic filler conventional in rubber industry; Then take other composition and natural rubber in the embodiment 2 of table 1, grind it and mix with above-mentioned The ground barium ferrite magnetic powder is fully mixed; the mixed ingredients are put into the rubber mixer, and the rubber is mixed under the action of the upper roller of the rubber mixer for 30 minutes at room temperature, and then it is mixed Grinding into a paste block; put the above-mentioned paste block composition after rubber mixing into a mold, and form it into...

Embodiment 3

[0043] Take the strontium ferrite magnetic powder in Example 3 of the above table 1 and put it in a grinder to grind it into a magnetic powder with a particle size of 100-300 meshes, and then use a silane coupling agent that accounts for 1% by weight of the strontium ferrite magnetic powder to react the strontium Ferrite magnetic powder is carried out surface modification treatment, and surface modification treatment is carried out according to the method for the surface treatment of inorganic filler of rubber industry routine; Then get other composition and natural rubber in the embodiment 3 of table 1, after it is pulverized and above-mentioned after grinding Fully mix the barium ferrite magnetic powder; put the mixed ingredients into the rubber mixer, under room temperature, mix the rubber under the action of the upper roller of the rubber mixer for 20 minutes, and then grind it into Paste block; put the above-mentioned paste block composition after rubber mixing into the mo...

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Abstract

The invention provides magnetic rubber with high magnetic induction intensity and the preparation method thereof, which belongs to the composite material technology field. The invention solves the problems in the prior production process that the production cost is high, the magnetic induction intensity of the produced special magnetic rubber product is low, and the elasticity performance is poor. The magnetic rubber with high magnetic induction intensity is made of ferromagnetic oxide powder, natural rubber, plasticizer, accelerator, activator, antioxidant and stearic acid which are prepared. The preparation method comprises the following steps: step A, grinding and blending; step B, rubber refining; step C, moulding, and step D, charging magnetism. The magnetic induction intensity of the magnetic rubber special product reaches above 600 gauss, and the elasticity performance is good; the preparation method and process is simple, and the production cost is low.

Description

technical field [0001] The invention relates to a magnetic rubber, in particular to a magnetic rubber with high magnetic induction intensity and a preparation method thereof; it belongs to the technical field of composite materials. Background technique [0002] Magnetic rubber is a functional composite material made of rubber as a matrix and added with magnetic solid powder. After the magnetic powder is processed, it changes from non-anisotropic polycrystalline to anisotropic single crystal, making the rubber Under the action of a strong magnetic field, single crystal particles in a non-oriented state produce directional alignment in the rubber matrix, and can show magnetism in a certain direction to form magnetic rubber. Magnetic rubber can be divided into four categories; 1: Isotropic magnetic Rubber; two: anisotropic magnetic rubber; three: soft ferrite magnetic rubber; four: liquid magnetic rubber; in the above four types of magnetic rubber, isotropic magnetic rubber is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K5/47H01F1/42C08K5/10C08K5/40C08K3/22C08K3/08
Inventor 杨中联
Owner 杨中联
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