Magnetorheological elastomer, preparation method and application thereof

A technology of magnetorheological elastomers and elastomers, applied in the field of preparation and magnetorheological elastomers, can solve the problems of no unified preparation method, poor interface bonding performance, poor damping performance, etc., and achieve improved magnetotropic effect, Good damping, reducing the effect of frost heaving and cracking

Inactive Publication Date: 2019-09-06
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an emerging smart material, magnetorheological elastomer has no uniform preparation method, and there are some problems
For example, there are problems such as poor interface bonding performance between magnetic particles and the matrix, poor damping performance at room temperature, and poor mechanical properties, resulting in a certain gap between the performance of the prepared magnetorheological elastomer and the actual engineering application.

Method used

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  • Magnetorheological elastomer, preparation method and application thereof
  • Magnetorheological elastomer, preparation method and application thereof
  • Magnetorheological elastomer, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A magnetorheological elastomer, comprising the following components according to the weight ratio: 100 parts of rubber matrix, 600 parts of magnetic particles, 16 parts of vulcanizing agent and 4 parts of accelerator, 20 parts of plasticizer, 30 parts of dispersant, binder 50 parts, 10 parts of strengthening agent, 10 parts of cold resistance agent.

[0024] Among them, the rubber matrix is ​​made of silicon rubber, and the magnetic particles are made of micron-sized carbonyl iron powder and silicon steel powder, with a ratio of 25:1. The vulcanizing agent is selenium, the vulcanization accelerator is calcium oxide; the plasticizer is dimethyl silicone oil, the dispersant is methyl amyl alcohol, the binder is silicon carbide, the cold resistance agent is adipate, and the reinforcing agent is gas phase method Silica.

[0025] The above-mentioned preparation method of a magnetorheological elastomer comprises the following steps:

[0026] Step 1: Weigh according to the a...

Embodiment 2

[0032] A magneto-rheological elastomer, each component includes: 125 parts of rubber matrix, 650 parts of magnetic particles, 20 parts of vulcanizing agent, 4.5 parts of accelerator, 25 parts of plasticizer, 40 parts of dispersant, binder 55 parts, 15 parts of strengthening agent, 15 parts of cold resistance agent.

[0033] Among them, the rubber matrix is ​​made of silicon rubber, and the magnetic particles are made of micron-sized carbonyl iron powder and silicon steel powder, with a ratio of 25:1. The vulcanizing agent is selenium, the vulcanization accelerator is magnesium oxide; the plasticizer is dimethyl silicone oil, the dispersant is polyurethane, the binder is graphene, the cold-resistant agent is adipate, and the reinforcing agent is fumed white carbon black.

[0034] The preparation method and application of the aforementioned magnetorheological elastomer are the same as those in Example 1.

Embodiment 3

[0036] A magnetorheological elastomer, each component includes: 150 parts of rubber matrix, 700 parts of magnetic particles, 25 parts of vulcanizing agent, 5 parts of accelerator, 30 parts of plasticizer, 50 parts of dispersant, binder 60 parts, 20 parts of strengthening agent, 20 parts of cold resistance agent.

[0037] Among them, the rubber matrix is ​​made of silicon rubber, and the magnetic particles are made of micron-sized carbonyl iron powder and silicon steel powder, with a ratio of 25:1. The vulcanizing agent is selenium, the vulcanization accelerator is calcium oxide; the plasticizer is dimethyl silicone oil, the dispersant is methyl amyl alcohol, the binder is carbon nanotubes, the cold resistance agent is adipate, and the reinforcing agent is gas phase French silica.

[0038] The preparation method and application of the aforementioned magnetorheological elastomer are the same as those in Example 1.

[0039] The cylinder magnetorheological elastomer molds with a...

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Abstract

The invention relates to a magnetorheological elastomer, a preparation method and application thereof. The elastomer comprises the following components in parts by weight: 100-150 parts of a rubber matrix, 600-700 parts of magnetic particles, 16-25 parts of a vulcanizing agent, 4-5 parts of an accelerator and 120-180 parts of a filling material, and the filling material comprises 20-30 parts of aplasticizer, 30-50 parts of a dispersant, 50-60 parts of a binder, 10-20 parts of a reinforcing agent and 10-20 parts of a cold-resistant agent. The components are matched and cooperated with each other, so that the bonding strength of the interface between the magnetic particles and the matrix is improved, the magnetic permeability is improved on the premise of ensuring the saturation magnetization strength, and the eddy current loss is reduced. A part made of the magnetorheological elastomer material has good mechanical properties and good damping and shear storage modulus when in use. The good mechanical properties and good damping and shear storage modulus have obvious effect on vibration reduction and isolation design, and the magnetorheological elastomer is suitable for popularization and application..

Description

technical field [0001] The invention belongs to the technical field of vibration-reducing and vibration-isolating intelligent materials, and specifically relates to a magnetorheological elastomer, a preparation method and an application. Background technique [0002] With the increasing use of vehicles in our country, the problem of road and bridge vibration caused by automobiles is becoming more and more serious. Due to the characteristics of magnetorheological fluid materials, it has been widely used in the field of vibration reduction, but magnetorheological fluids have disadvantages such as easy particle settlement, difficult liquid sealing, and poor stability. Since magnetorheological elastomer materials overcome the above disadvantages while maintaining the advantages of magnetorheological fluids and elastomers, magnetorheological elastomer materials have better application prospects. As an emerging smart material, magnetorheological elastomer has no uniform preparati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L75/04C08K13/02C08K3/08C08K3/02C08K3/22C08K5/05C08K3/34C08K5/11C08K3/36C08K3/04
CPCC08K2003/023C08K2003/2206C08K2003/222C08K2201/01C08L83/04C08L2205/025C08L2205/03C08K13/02C08K3/08C08K3/02C08K3/22C08K5/05C08K3/34C08K5/11C08K3/36C08L75/04C08K3/042C08K3/041
Inventor 郭超陆征然孙红张帆李全兴张茂胜
Owner SHENYANG JIANZHU UNIVERSITY
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