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Composite electrorheological elastomer material of starch, transformer oil drop and silicone rubber

A technology of elastomer material and transformer oil, applied in the field of electrorheological elastomer material, can solve problems such as reducing the elasticity of the matrix

Inactive Publication Date: 2011-11-23
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the research results also show that the electrorheological effect has a great relationship with the elasticity and flexibility of the matrix, such as reducing the elasticity of the matrix

Method used

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  • Composite electrorheological elastomer material of starch, transformer oil drop and silicone rubber
  • Composite electrorheological elastomer material of starch, transformer oil drop and silicone rubber
  • Composite electrorheological elastomer material of starch, transformer oil drop and silicone rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Put 0.824g of starch in 4g of silicone oil and stir magnetically for 30 minutes to disperse the starch evenly into the transformer oil to prepare a certain ratio of electrorheological fluid; add 4g of 107 silicone rubber to the above electrorheological fluid under stirring conditions, Until the dispersion is uniform; add an appropriate amount of curing agent to the system, and continue to stir until the curing agent is evenly mixed; quickly transfer it to a conductive glass box (40mm×20mm×5mm) and let it stand, in the absence or presence of an external DC electric field ( 0.6kV / mm), wherein the electric field is applied until the end of the curing process. In this way, two types of composite electroelastomers with a starch content of 10wt% and silicone oil:transformer oil=4:0 are prepared. Its storage modulus and relative storage modulus changes are shown in figure 1 , figure 2 .

Embodiment 2

[0021] Put 0.824g of starch in 2g of transformer oil, and stir magnetically for 30 minutes, so that the starch is evenly dispersed in the transformer oil, and a certain proportion of electrorheological fluid is prepared; put 2g of silicone oil in 4g of 107 silicone rubber, and use a constant temperature magnetic stirrer Stir to make it evenly mixed; add the above electrorheological fluid to the rubber mixture under stirring until uniformly dispersed; add an appropriate amount of curing agent to the system, and continue stirring until the curing agent is evenly mixed; quickly transfer it to Stand still in the conductive glass box (40mm * 20mm * 5mm), solidify under the action of no or with an external DC electric field (0.6kV / mm), wherein the electric field is added until the curing process ends, so that the starch content is 10wt%. Two types of composite electroelastomers with silicone oil:transformer oil=1:1. Its storage modulus and relative storage modulus changes are shown ...

Embodiment 3

[0023] Put 0.824g of starch in 4g of transformer oil and stir it magnetically for 30 minutes to disperse the starch evenly in the transformer oil to prepare a certain ratio of electrorheological fluid; add 4g of 107 silicone rubber to the above electrorheological fluid under stirring conditions , until it is uniformly dispersed; add an appropriate amount of curing agent to the system, and continue to stir until the curing agent is evenly mixed; quickly transfer it to a conductive glass box (40mm×20mm×5mm) and let it stand, in the absence or presence of an external DC electric field (0.6kV / mm) is solidified, and an electric field is applied until the curing process is completed. In this way, two types of composite electroelastomers with a starch content of 10wt% and silicone oil:transformer oil=0:4 are prepared. Its storage modulus and relative storage modulus changes are shown in figure 1 , figure 2 .

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Abstract

The invention relates to an electrorheological elastomer, and especially relates to a composite electrorheological elastomer material of starch, transformer oil drop and silicone rubber. An electrorheological fluid composed of starch particles and transformer oil is dispersed in the mixed liquor of 107 silicone rubber and silicone oil. Without / with an electric field, unordered and ordered composite electrorheological elastomers with a dispersed phase structure can be obtained respectively through solidification. Wherein, the transformer oil always presents a liquid phase in the process of silicone rubber solidification. As oil drops of low viscosity always exist inside the composite electrorheological elastomer, so that the polarization influence of the electric field on the starch in the elastomer is increased, and furthermore the change volume of the relative storage modulus of the elastomer is improved. With good electrorheological effects, the composite electrorheological elastomer material of the invention boasts broad application prospects.

Description

technical field [0001] The invention relates to an electrorheological elastic body material, in particular to a starch / transformer oil drop / silicone rubber composite electroelastic body material. Background technique [0002] Electrorheological materials are a kind of intelligent soft matter, among which electrorheological fluid is the most researched, which is generally a suspension system formed by dispersing particles with high dielectric constant in insulating oil with low dielectric constant. When an electric field is applied to it, its viscosity and shear strength change instantaneously by several orders of magnitude and exhibit steroidal properties. At present, materials with high electrorheological activity have been prepared, but their application in engineering is hindered due to poor anti-sedimentation and stability. Therefore, the preparation of electrorheological materials with excellent comprehensive properties is still a research hotspot in this field. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L3/02
Inventor 赵晓鹏郝丽梅丁昌林
Owner NORTHWESTERN POLYTECHNICAL UNIV
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