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A kind of itaconate/isoprene copolymer type composite material and use as dielectric elastomer

A technology of itaconate and isoprene, applied in the field of composite materials, can solve the problems of reducing material flexibility and toughness, not conducive to improving material strain response and driving response, and high rigidity, so as to achieve the effect of high electrical deformation

Active Publication Date: 2017-08-15
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high rigidity of the ceramic filler will reduce the flexibility and toughness of the material, which is not conducive to improving the strain response and driving response of the material.

Method used

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  • A kind of itaconate/isoprene copolymer type composite material and use as dielectric elastomer
  • A kind of itaconate/isoprene copolymer type composite material and use as dielectric elastomer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Synthesis of dibutyl itaconate monomer from itaconic acid and butanol, and then prepare dibutyl itaconate / isoprene copolymerization by emulsion polymerization of dibutyl itaconate monomer and isoprene thing. Dibutyl itaconate and isoprene are fed in a mass ratio of 50:50, polymerized according to the method described in the patent "CN 102558578 B", the polymerized product is demulsified with 1% calcium chloride aqueous solution, and ethanol Washed repeatedly with deionized water and dried to constant weight. Get 100 parts by mass of itaconate di-n-ester / isoprene copolymer, masticate on an open mill, add 1 part by mass of sulfur, 4 parts by mass of zinc oxide, 0.5 parts by mass of stearic acid, 0.7 parts by mass of Parts of accelerator M, 1 mass part of accelerator CZ, mixed on the open mill. It is vulcanized on a 25-ton electric heating plate vulcanizing machine produced by Shanghai Machinery Manufacturing Plant, with a vulcanization temperature of 150°C an...

Embodiment 2

[0025] Example 2: The preparation method is the same as Example 1, except that the feed ratio of itaconate / isoprene copolymer is 80:20. The test results are shown in Table 1.

Embodiment 3

[0026] Example 3: Synthesis of dibutyl itaconate monomer from itaconic acid and butanol, and then prepare dibutyl itaconate / isoprene copolymerization by emulsion polymerization of dibutyl itaconate monomer and isoprene things. Dibutyl itaconate and isoprene are fed in a mass ratio of 50:50, polymerized according to the method described in the patent "CN 102558578 B", the polymerized product is demulsified with 1% calcium chloride aqueous solution, and ethanol Washed repeatedly with deionized water and dried to constant weight. Take 100 parts by mass of dibutyl itaconate / isoprene copolymer, masticate it on an open mill, add 5 parts by mass of DCP, and mix evenly on the open mill. It is vulcanized on a 25-ton electric heating plate vulcanizing machine produced by Shanghai Machinery Manufacturing Plant, with a vulcanization temperature of 165°C and a vulcanization time of 15 minutes. The dielectric constant and Young's modulus of the itaconate / isoprene copolymer dielectric elas...

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Abstract

An itaconate / isoprene copolymer composite material and its use as a dielectric elastomer belong to the technical field of composite materials. The density of polar ester groups and alkoxy side chains, as well as the content of isoprene, that is, the content of carbon-carbon double bonds, can be adjusted by copolymerizing itaconate esters with isoprene in different proportions, thereby regulating the elastomer The effect of dielectric properties and mechanical properties. The elastomer can be crosslinked by sulfur vulcanization systems and peroxide vulcanization systems. Itaconate monomer plasticization can be used during processing to reduce the modulus of the elastomer. By adding high dielectric fillers, a composite material with high dielectric constant and low elastic modulus is obtained. This composite material can obtain high electrostrain at very low voltage.

Description

technical field [0001] The present invention relates to an itaconate / isoprene copolymer type composite material for dielectric elastomers. In particular, it relates to an itaconate / isoprene copolymer dielectric elastomer composite material which produces large electric deformation under small driving voltage, and belongs to the technical field of composite materials. Background technique [0002] Dielectric elastomer is a typical electroactive polymer, which can generate driving strain under the action of an external electric field. And it has the characteristics of high energy density, short response time, good flexibility, and high conversion efficiency of electrical energy and mechanical energy. Dielectric elastomers have broad application prospects in artificial muscles, energy conversion, aerospace, biomedical and other fields. Since Ron Pelrine et al reported high-speed electrically actuated elastomers with a strain greater than 100% in "High-Speed ​​Electrically Act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L35/02C08L47/00C08K3/06C08K5/14C08K5/11C08K3/24
Inventor 张立群雷巍巍王润国周鑫鑫乔荷姚慧侯冠一
Owner BEIJING UNIV OF CHEM TECH
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