Preparing method of magnetostriciton material

A technology of magnetostrictive materials and preparation steps, which is applied in the field of preparation of magnetostrictive materials, can solve problems such as poor interface bonding, poor wetting, and reduced sedimentation speed of particles between resins, so as to achieve safe and green raw materials and a high-quality preparation process. Simple, good particle dispersion effect

Active Publication Date: 2017-03-15
ZHEJIANG JIAYUDA MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: in the existing resin-based magnetostrictive materials, the magnetostrictive particles and the resin have poor wetting, and the addition of the particles is easy to form agglomerates and segregation, resulting in poor interface bonding and reducing the performance of the material The problem is to provide a method of preparing magnetic ceramic powder and combining it with epoxy resin. Under the action of a coupling agent, the magnetic ceramic is uniformly compounded into the resin. Under the magnetic action of an external permanent magnet, the modified resin base and magnetic The binding strength between the particles can be reduced, the sedimentation velocity of the particles between the resins can be reduced, and the controllable orientation magnetic field can be determined under the action of the magnetic field system to form a stable composite system, which effectively solves the problem of the low bonding degree of the resin-based magnetostrictive material and the particle size. Problems prone to reunion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, according to the mass ratio of 1:8, Pb (CH 3 COO) 2 Stir and mix with glacial acetic acid for 10 minutes, and let it stand at room temperature for 15 minutes to prepare a mixed solution of lead acetate, and then add Zr(NO 3 ) 4 ·5H 2 Stir and mix O with ethylene glycol methyl ether to prepare a zirconyl nitrate mixed solution, then mix the lead acetate mixed solution with the zirconyl nitrate mixed solution at a volume ratio of 1:1, and heat in a water bath at 65°C for 15 minutes; wait until the water bath heating is completed After that, stop heating and let it stand to cool to room temperature to collect the mixed solution, and then weigh 5 parts of butyl titanate, 25 parts of ethylene glycol methyl ether, 35 parts of the mixed solution and 2 parts of acetylacetone in parts by weight. In a beaker, heat it in a water bath at 75°C for 25 minutes, then add dropwise glacial acetic acid solution to adjust the pH to 4.5, and keep it warm for 45 minutes to prepare ...

example 2

[0019] First, according to the mass ratio of 1:8, Pb (CH 3 COO) 2 Stir and mix with glacial acetic acid for 12 minutes, and let it stand at room temperature for 17 minutes to prepare a lead acetate mixture, and then add Zr(NO 3 ) 4 ·5H 2 Stir and mix O with ethylene glycol methyl ether to prepare a zirconyl nitrate mixture, then mix the lead acetate mixture with the zirconyl nitrate mixture at a volume ratio of 1:1, and heat in a water bath at 67°C for 17 minutes; wait until the water bath heating is completed After that, stop heating and let it stand to cool to room temperature to collect the mixed solution, and then weigh 7 parts of butyl titanate, 27 parts of ethylene glycol methyl ether, 37 parts of the mixed solution and 3 parts of acetylacetone in parts by weight. In a beaker, heat it in a water bath at 77°C for 27 minutes, then add dropwise glacial acetic acid solution to adjust the pH to 4.7, and keep it warm for 47 minutes to prepare a mixed gel solution. Rotate th...

example 3

[0021] First, according to the mass ratio of 1:8, Pb (CH 3 COO) 2 Stir and mix with glacial acetic acid for 15 minutes, and let it stand at room temperature for 20 minutes to prepare a lead acetate mixture, then add Zr(NO 3 ) 4 ·5H 2 Stir and mix O with ethylene glycol methyl ether to prepare a zirconyl nitrate mixed solution, then mix the lead acetate mixed solution with the zirconyl nitrate mixed solution at a volume ratio of 1:1, and heat in a water bath at 70°C for 20 minutes; wait until the water bath heating is completed After that, stop heating and let it cool down to room temperature to collect the mixed solution, then weigh 10 parts of butyl titanate, 30 parts of ethylene glycol methyl ether, 45 parts of the mixed solution and 3 parts of acetylacetone in parts by weight. In a beaker, heat in a water bath at 80°C for 30 minutes, then add dropwise glacial acetic acid solution to adjust the pH to 5.0, and keep it warm for 60 minutes to prepare a mixed gel solution, an...

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Abstract

The invention relates to a preparing method of a magnetostriciton material, and belongs to the technical field of preparation of magnetostriciton materials. Aimed at the problem that in the current prepared resin matrix magnetostriciton material, interface bonding is bad and usability performance of the materials is reduced due to the fact that magnetostriciton particles have low wetting with resin, and the particles are prone to clustering and segregation when being mixed together, the magnetostriciton material is provided. According to the preparing method of the magnetostriciton material, magnetic ceramic powder is prepared, and the magnetic ceramic powder is then combined with epoxy resin; under the action of a coupling agent, magnetic ceramic is uniformly recombined to the inner part of the resin; under a magnetic action of an external permanent magnet, bonding strength between modified resin matrix and magnetic-induced particles is strengthened, sedimentation speed of particles among the resin is lowered; under the action of a magnetic field system, a controllable oriented magnetic field is determined, and a stable compound system is formed. The magnetostriciton material has a high combination degree, particles have good dispersity, and magnetostriction coefficient improved by 5-8% compared with similar products; meanwhile, the preparing method is simple, the raw material is green and safe, and the prepared magnetostriciton material does not cause environment pollution.

Description

technical field [0001] The invention relates to a preparation method of a magnetostrictive material, belonging to the technical field of magnetostrictive material preparation. Background technique [0002] The phenomenon that the magnet deforms due to the change of the magnetization state is called the magnetostrictive effect. This phenomenon was discovered by the famous physicist Joule in 1842, and it is also called the Joule effect. In 1963, Dr. Legvoid and Dr. Clark of the US Surface Weapons Center discovered that the rare earth elements Tb and Dy had extremely large magnetostriction coefficients near 0K temperature, and found that other heavy rare earth elements also had this property. In 1972, Clark et al. discovered TbFe 2 , DyFe 2 , SmFe 2 Etc RFe 2 The cubic Laves phase structure compound has a large magnetostriction coefficient at room temperature, but the cubic Laves phase RFe 2 The compound has a large magnetocrystalline anisotropy, and the anisotropy field i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K13/02C08K5/544C08K3/10C08K5/17C08K5/37
CPCC08K3/10C08K5/17C08K5/378C08K5/544C08K13/02C08K2201/01C08L63/00
Inventor 许斌蒋玉芳
Owner ZHEJIANG JIAYUDA MACHINERY CO LTD
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