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Conducting polymer laminar nano composite material and its preparation method and use

A technology of conductive polymer layer and nanocomposite materials, which is applied in the field of organic/inorganic composite materials, can solve the problems of slow deformation speed and insufficient output stress, and achieve the improvement of mechanical properties, mechanical properties and electric drive response speed, and improve The effect of electric drive performance

Inactive Publication Date: 2007-11-28
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 slow deformation speed and insufficient output stress of existing conductive polymers when applied to electrochemical drivers, thereby providing a conductive polymer layered with fast deformation speed and large output stress Nanocomposite

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add 1g of sodium montmorillonite with a particle size of 1000nm to 20ml of distilled water and stir vigorously at 60-70°C to form a stable suspension system. % concentrated hydrochloric acid and 10ml of water were mixed to prepare a quaternary ammonium salt solution. Slowly add the quaternary ammonium salt solution dropwise to the above montmorillonite aqueous solution under vigorous stirring at 50° C. to obtain a modified nano-layered inorganic material. Filter and wash the filter residue with water until the filtrate is free of chloride ions. The obtained precipitate was ultrasonically dispersed in 100 g of 1 wt % polyvinyl alcohol aqueous solution for one hour to obtain a stable dispersion system of nano-layered inorganic materials in water. Polymerization was carried out by chemical oxidation, and 50 ml of 10% hydrochloric acid and 5 g of aniline were added to the dispersion system, and stirred for 0.5 h to mix well. 50ml of 20% ammonium persulfate aqueous solutio...

Embodiment 2

[0030] Add 1 g of sodium montmorillonite with a particle size of 10 nanometers to 20 ml of distilled water, and stir vigorously at 60-70 ° C to form a stable suspension system. 37% concentrated hydrochloric acid and 10ml water were mixed to prepare a quaternary ammonium salt solution. Slowly add the quaternary ammonium salt solution dropwise to the above montmorillonite aqueous solution under vigorous stirring at 50° C. to obtain a modified nano-layered inorganic material. Filter and wash the filter residue with water until the filtrate is free of chloride ions. The obtained precipitate was ultrasonically dispersed in 100 g of 1 wt % polyvinylpyrrolidone aqueous solution for one hour to obtain a stable dispersion system of nano-layered inorganic materials in water. Electrochemical polymerization was used, and 5 g of dodecylbenzenesulfonic acid and 5 g of pyrrole were added to the dispersion system, and stirred for 0.5 h to mix well. Using stainless steel or ITO glass as the ...

Embodiment 3

[0033] Add 1.0 g of molybdenum disulfide with a particle size of 500 nm into 10 ml of n-butyllithium in tetrahydrofuran under the protection of argon, stir for 1 hour, and then drop into 500 ml of deionized water. After filtering, the precipitate was ultrasonically dispersed in 100 g of 1 wt % polyvinylpyrrolidone aqueous solution for one hour to obtain a stable dispersion system of nano-layered inorganic materials in water. Polymerization was carried out by chemical oxidation, and 100 ml of 10% hydrochloric acid and 10 g of aniline were added to the dispersion system, and stirred for 0.5 h to mix well. 50ml of 20% ammonium persulfate aqueous solution was added dropwise at 0-5°C, and kept at 0-5°C for reaction for 5 hours, and the monomers of the conductive polymer were polymerized. The polymer precipitate was filtered, and the filter cake was washed successively with distilled water and methanol. Then the filter cake was dispersed in 50 g of 5 wt % ammonia solution and stirr...

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Abstract

The present invention relates to one kind of layered nanometer composite conducting polymer material, which is organic / inorganic composite material prepared through adding monomer and dopant for conducting polymer into the stable dispersion system comprising layered nanometer inorganic material, modifier and dispersant, and the subsequent chemical oxidation polymerization or electrochemical oxidation polymerization. The layered nanometer composite conducting polymer material possesses reversible doping and de-doping process in electrochemical redox and reversible deformation under action of electric field, and may by applied in electric driving device, micro flow controlling pump, etc operating in biological environment. Compared with available technology, the present invention has the advantages of high mechanical performance and high electric driving response speed.

Description

technical field [0001] The invention belongs to the field of organic / inorganic composite materials, and in particular relates to a conductive polymer layered nanocomposite material, its preparation method and application. Background technique [0002] Conductive polymer is a new type of polymer material with highly conjugated main chain structure and metal-like conductivity. During the doping / dedoping process of conductive polymers, due to the entry and exit of ions, it is usually accompanied by volume changes. Therefore, the double-layer structure composed of conductive polymer / flexible plastic can be bent during the process of doping / dedoping and can be used as an electrically driven device. The existing conductive polymer electrochemical driving devices have the characteristics of low driving voltage and large deformation, and have been initially applied in artificial muscles and micromechanical drives. However, these conductive polymer electrochemical actuators also ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/02C08K9/04C08G73/02C08J5/18C08K3/30C08K5/42C08K3/04C08L29/04C08L39/06
Inventor 魏志祥江雷
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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