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High dielectric constant and low-modulus dielectric elastomer material and preparation method thereof

A dielectric elastomer and high dielectric constant technology, applied in the field of high dielectric constant and low modulus dielectric elastomer materials and their preparation, can solve the problem of reducing the dielectric elastomer modulus, dielectric elastomer modulus and Dielectric constant can not be taken into account and other issues, to achieve the effect of reduced Young's modulus, large electro-induced deformation, and remarkable effect

Inactive Publication Date: 2010-12-01
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding a liquid with a high dielectric constant to the rubber matrix, the liquid with a high dielectric constant is dispersed in the rubber matrix at the droplet or molecular level, reducing the modulus of the dielectric elastomer and increasing the dielectric constant of the elastomer. Solve the problem that the dielectric elastic body modulus and the dielectric constant cannot be balanced

Method used

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  • High dielectric constant and low-modulus dielectric elastomer material and preparation method thereof
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  • High dielectric constant and low-modulus dielectric elastomer material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0023] Example 1: Hydrogenated nitrile / glycerol dielectric elastomer material was prepared by using hydrogenated nitrile rubber with a mass content of 36% acrylonitrile as the matrix and glycerin as the dielectric liquid. (1) Masticate 100 parts by mass of hydrogenated nitrile rubber at room temperature on an open mill, then gradually add 20 parts by mass of glycerin, knead with a knife, make a triangular bag, and make it evenly mixed; (2) then add 3 parts by mass of Part zinc oxide, 3 parts by mass of dicumyl peroxide (DCP), knead evenly, and go out; Test the vulcanization curve with a vulcanizer to determine the positive vulcanization time; (4) vulcanize at 160°C × positive vulcanization time on a 25-ton electric heating plate vulcanizer produced by Shanghai Rubber Machinery Manufacturing to obtain a cross-linked hydrogenated nitrile rubber / glycerin composite material. (5) Cut the composite material into an area of ​​1 cm × 1 cm, coat the upper and lower surfaces with silver...

Embodiment 2

[0024] Embodiment 2: The preparation method and testing method are the same as in Embodiment 1, except that the number of parts of glycerin is 30 parts by mass. The test results are shown in Table 1.

Embodiment 3

[0025]Embodiment 3: The preparation method and testing method are the same as in Embodiment 1, except that the number of parts of glycerin is 40 parts by mass. The test results are shown in Table 1.

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Abstract

The invention relates to a high dielectric constant and low-modulus dielectric elastomer material and a preparation method thereof. High dielectric constant liquid disperses in a rubber substrate in the form of drops or molecules horizontally, so as to obviously reduce the modulus of the dielectric elastomer and improve the dielectric constant of the elastomer, thereby simultaneously solving the problem that low-modulus and high dielectric constant can not exist in the dielectric elastomer at the same time.

Description

Technical field: [0001] The invention relates to a dielectric elastomer material with high dielectric constant and low modulus and a preparation method thereof. Especially the dielectric elastomer material with low modulus and high dielectric performance obtained by filling rubber with high dielectric liquid and its preparation method. Background technique: [0002] Dielectric Elastomer (DE) is a kind of electroactive polymer, which belongs to a new type of electrosensing smart material. Its comprehensive performance is excellent, including the characteristics of large electro-induced deformation, high elastic energy density, fast response time (ms), small dielectric loss and viscoelastic hysteresis loss, good flexibility and potentially high conversion efficiency. It has broad application prospects in movable pocket or micro robots, aerospace, medical and other fields. Since SCIENCE reported high-speed electrically actuated elastomers with strains greater than 100% in 200...

Claims

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Application Information

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IPC IPC(8): C08L15/00C08L9/02C08L13/00C08L33/00C08L75/04C08K5/14C08K3/06C08K5/053C08K5/36
Inventor 张立群杨丹田明成煜民伍社毛于迎春刘浩亮
Owner BEIJING UNIV OF CHEM TECH