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Electrostriction polymer laminar nano composite material, preparation method and application thereof

A nano-composite material, polymer layer technology, applied in the direction of muscles, ligaments, etc., can solve the problems of high driving voltage and small output stress, and achieve the effects of reducing driving voltage, large output stress, and convenient preparation

Inactive Publication Date: 2009-07-08
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of higher driving voltage and smaller output stress of existing electrostrictive polymers, thereby providing a layered nanocomposite electrostrictive polymer with lower driving voltage and larger output stress Material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 2 g of sodium montmorillonite with a particle size of 1000 nanometers into 38 ml of distilled water, and vigorously stir at 60-70° C. to form a stable suspension system. Mix 0.2 g of cetyltrimethylammonium bromide, 1 g of 37% concentrated hydrochloric acid and 10 ml of water to prepare a quaternary ammonium salt solution. Under the condition of vigorous stirring, the above-mentioned aqueous solution of quaternary ammonium salt was slowly added dropwise into the aqueous solution of montmorillonite. Filtrate, wash the filter residue with water until the filtrate is free of chloride ions, dry and grind the filter residue to obtain organic montmorillonite. The organic montmorillonite was dispersed in 200 grams of a tetrahydrofuran solution with a mass concentration of 20 wt % polymethoxysiloxane under vigorous stirring, and 0.4 g of a crosslinking agent orthosilicate was added, and the catalyst dialkyltin dicarboxylate 0.01g, mix well. The mixed solution is coated on ...

Embodiment 2

[0024] Add 20 g of sodium-based montmorillonite with a particle size of 1000 nanometers into 38 ml of distilled water, and vigorously stir at 60-70° C. to form a stable suspension system. 20g of triethanolamine, 5g of 98% sulfuric acid and 10ml of water were mixed to prepare a quaternary ammonium salt solution. Under the condition of vigorous stirring, the above-mentioned aqueous solution of quaternary ammonium salt was slowly added dropwise into the aqueous solution of montmorillonite. Filtrate, wash the filter residue with water until the filtrate is free of chloride ions, dry and grind the filter residue to obtain organic montmorillonite. The organic montmorillonite was dispersed in 1000 g of tetrahydrofuran solution with mass concentration of 10 wt% acrylate rubber under strong stirring, 5 g of crosslinking agent amine benzoate and 0.01 g of catalyst dialkyltin dicarboxylate were added, and mixed evenly. The mixed solution was coated on the quartz substrate, and the solve...

Embodiment 3

[0027] Add 2.0 g of molybdenum disulfide to 20 ml of n-butyllithium in tetrahydrofuran under the protection of argon, stir for 1 hour, and then dropwise add 500 ml of deionized water. Filter, dry and grind the filter residue to obtain organic layered molybdenum disulfide. The organic montmorillonite was dispersed in 200 grams of a tetrahydrofuran solution with a mass concentration of 20 wt % polymethoxysiloxane under vigorous stirring, and 0.4 g of a crosslinking agent orthosilicate was added, and the catalyst dialkyltin dicarboxylate 0.01g, mix well. The mixed solution is coated on the quartz substrate, and cured at 50-60° C. for 10 hours to obtain a nanocomposite film with a film thickness of 10 microns. The composite film layer is subjected to one-dimensional 50-100% stretch orientation to obtain the electrostrictive polymer layered nanocomposite material III of the present invention.

[0028] The electrostrictive polymer layered nano-composite material III is coated with...

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Abstract

The present invention relates to one kind of electrostrictive layered nanometer composite polymer material, which is prepared with electrostrictive polymer, layered nanometer inorganic material, organic intercalative agent, cross-linking agent, catalyst and protonating agent, and through curing at 40-120 deg.c to form 10-1000 micron thick film and the subsequent drawing orientation. When 10-100 V / micron electric field is applied in the direction perpendicular to the film plane, one strain in 1-100 % may generate in the direction perpendicular to the electric field direction and the drawing direction, with the deformation being eliminated fast after the electric field is eliminated. The electrostrictive composite polymer material may be applied in electric driver, pump and sensor related to artificial muscle, and compared with available technology, the present invention has the advantages of simple preparation and lower driving voltage.

Description

technical field [0001] The invention belongs to the field of organic / inorganic composite materials, and in particular relates to an electrostrictive polymer layered nanocomposite material, its preparation method and application. Background technique [0002] Electrostrictive polymer is a kind of polymer material that can produce stretching motion under the action of electric field, so as to realize the conversion of electrical energy to mechanical energy. Electrostrictive polymers are known as artificial muscle materials due to their muscle-like motion in electrical-mechanical energy conversion. In U.S. Patents US6911764 and US6940211, a material and device for converting electrical energy to mechanical energy based on an electrostrictive polymer is disclosed. This electrostrictive polymer material is mainly based on a single-component electrostrictive material. Its high driving voltage and output stress make its performance far behind that of muscle. In 2005, in the world...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L33/08C08K5/57C08J5/18B29C55/06A61F2/08C08K5/541C08K3/34C08K3/30C08K3/04
Inventor 魏志祥江雷
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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