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Carbon nano tube reinforced polyaniline nano-fiber and preparing method thereof

A carbon nanotube and nanofiber technology, applied in the field of carbon nanotube reinforced polyaniline nanofibers and their preparation, can solve the problems of low electrical conductivity and poor processing performance, and achieve controllable electrical conductivity, efficient dispersion or dissolution, Simple preparation method

Inactive Publication Date: 2012-07-11
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of poor processability, low electrical conductivity and easy agglomeration of carbon nanotubes and polyaniline composite materials in the prior art , and proposed a carbon nanotube reinforced polyaniline nanofiber and its preparation method

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  • Carbon nano tube reinforced polyaniline nano-fiber and preparing method thereof
  • Carbon nano tube reinforced polyaniline nano-fiber and preparing method thereof
  • Carbon nano tube reinforced polyaniline nano-fiber and preparing method thereof

Examples

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Effect test

Embodiment 1

[0088] A method for preparing polyaniline nanofibers that do not contain carbon nanotubes, without adding carbon nanotubes, that is, the concentration of carbon nanotubes is 0%, with 0.1mol / L hydrochloric acid as the reaction medium, ammonium persulfate as the oxidant, and N -Phenylphenylenediamine is an initiator, and its preparation method specifically comprises the following steps:

[0089] (1) Dissolve 750mg of aniline monomer in 100mL of 0.1mol / L hydrochloric acid to form an aniline monomer solution;

[0090] (2) Dissolve 37.5mg of initiator in 2mL of ethanol to form an initiator solution;

[0091] (3) Dissolve 450mg of oxidizing agent in 100mL of 0.1mol / L hydrochloric acid to form an oxidizing agent solution;

[0092] Described oxidizing agent is ammonium persulfate;

[0093] (4) Add the initiator alcohol solution obtained in step (2) to the aniline monomer solution obtained in step (1) and mix quickly, then add the oxidant solution obtained in step (3) immediate...

Embodiment 2

[0100] A method for preparing carbon nanotube-reinforced polyaniline nanofibers, comprising using carbon nanotubes with a concentration of 0.5% as an additive, 0.1mol / L hydrochloric acid as a reaction medium, ammonium persulfate as an oxidant, and N -Phenylphenylenediamine is initiator, and its preparation method specifically comprises the following steps:

[0101] (1) Disperse 750mg of aniline monomer and 4mg of carbon nanotubes in 100mL of 0.1mol / L hydrochloric acid to form a blend of aniline monomer and carbon nanotubes;

[0102] (2) Dissolve 37.5mg of initiator in 2mL of ethanol to form an initiator solution;

[0103] (3) Dissolve 450mg of oxidizing agent in 100mL of 0.1mol / L hydrochloric acid to form an oxidizing agent solution;

[0104] Described oxidizing agent is ammonium persulfate;

[0105] (4) Add the initiator alcohol solution obtained in step (2) to the blend of aniline monomer and carbon nanotubes obtained in step (1) and mix quickly, then immediately...

Embodiment 3

[0112] A method for preparing carbon nanotube-reinforced polyaniline nanofibers, that is, a carbon nanotube with a concentration of 1% is used as an additive, 0.1mol / L hydrochloric acid is used as a reaction medium, ammonium persulfate is used as an oxidant, and N -Phenylphenylenediamine is initiator, and its preparation method specifically comprises the following steps:

[0113] (1) Disperse 750mg of aniline monomer and 8mg of carbon nanotubes in 100mL of 0.1mol / L hydrochloric acid to form a blend of aniline monomer and carbon nanotubes;

[0114] (2) Dissolve 37.5mg of initiator in 2mL of ethanol to form an initiator solution;

[0115] (3) Dissolve 450mg of oxidizing agent in 100mL of 0.1mol / L hydrochloric acid to form an oxidizing agent solution;

[0116] Described oxidizing agent is ammonium persulfate;

[0117] (4) Add the initiator alcohol solution obtained in step (2) to the blend of aniline monomer and carbon nanotubes obtained in step (1) and mix quickly, t...

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Abstract

The invention discloses carbon nano tube reinforced polyaniline nano-fiber and a preparing method thereof. The preparing method includes steps of: adding aniline monomers and carbon nano tubes into dilute acid for ultrasound treatment to obtain carbon nano tube and aniline monomer blend solution; dissolving initiators into ethanol to form initiator solution and dissolving oxidants in dilute acid to form oxidant solution; and adding the initiator solution into the carbon nano tube and aniline monomer blend solution, then adding the oxidant solution, severely swinging for a moment, performing centrifugation, washing, redispersion and the like after standing reaction is complete so as to finally obtain the carbon nano tube reinforced polyaniline nano-fiber. The preparing method is simple, efficient and high in controllability. The carbon nano tubes can be uniformly dispersed on a polyaniline matrix. The mean diameter of the obtained carbon nano tube reinforced polyaniline nano-fiber is 30-60 nm, the length is 1-2 mu m, and electric conductivity is 10(-8)-10(2) S / cm, and the carbon nano tube reinforced polyaniline nano-fiber can be used in the application fields such as sensors, actuating devices, ultra-capacitors, electrochromatic windows, functional coatings and ultrafiltration membranes.

Description

technical field [0001] The invention belongs to the technical field of preparation of conductive polymer nanocomposite materials, and in particular relates to a carbon nanotube reinforced polyaniline nanofiber and a preparation method thereof. Background technique [0002] Among the many conductive high polymer materials, polyaniline (PANi) has become one of the research hotspots of conductive polymers due to its advantages such as easy availability of raw materials, simple synthesis, high conductivity, high temperature resistance and good oxidation resistance. The unique linear large π-electron conjugated system of polyaniline molecules makes the carrier? Free electrons delocalized and provides migration conditions, thus endowing it with unique electrical conductivity, magnetic properties, electrochemical capacitance properties, catalytic properties, and electrochromic properties. And the characteristics of electric volume response (Tran H D, Li D, Kaner R B. One-dimensio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02C08K9/00C08K7/00C08K3/04C08L79/02
Inventor 廖耀祖钱微王霞李晓燕李颖余灯广
Owner UNIV OF SHANGHAI FOR SCI & TECH
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