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Preparation method of polyacrylonitrile/ionic liquid/polyaniline conducting composite material

A conductive composite material, polyacrylonitrile technology, applied in the field of polyacrylonitrile/ionic liquid/polyaniline composite conductive material and its preparation, can solve problems such as retention, affecting material appearance characteristics, manufacturing and use

Inactive Publication Date: 2015-06-17
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polymer materials have high surface resistance and volume resistance. Once triboelectrically charged, static electricity is not easily removed by conduction and stays on the surface of the material, which will not only affect the appearance characteristics, manufacturing and use of the material, but more importantly, there will be potential safety hazards of static electricity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 75 grams of aniline to 225 grams of plasticizer 1-butyl-3-methylimidazolium hexafluorophosphate, stir to make it evenly mixed to obtain a mixed liquid. Put 750 grams of polyacrylonitrile powder in a high-speed mixer, slowly add the mixed liquid of ionic liquid plasticizer and aniline, and stir for 1 hour to make the polyacrylonitrile powder fully absorb the mixed liquid to obtain a mixture. The mixture was put into a mold, and hot-pressed in a flat vulcanized bed for 15 minutes at a molding temperature of 150° C. and a pressure of 15 MPa to obtain a polyacrylonitrile sheet containing polyaniline monomers.

[0020] Take 30 grams of sheet and immerse in 1000 grams of 1.0 mol / L hydrochloric acid aqueous solution, control the temperature at 20°C, slowly add 500 grams of 1.0 mol / L hydrochloric acid aqueous solution with 60 grams of ammonium persulfate dissolved in it, react for 4 hours, and the reaction ends Finally, the material was washed with water and dried to obtain...

Embodiment 2

[0022] Add 125 grams of aniline to 187.5 grams of plasticizer 1-butyl-3-methylimidazolium hexafluorophosphate, stir to make it evenly mixed to obtain a mixed liquid. Put 697.5 grams of polyacrylonitrile powder in a high-speed mixer, slowly add the mixed liquid of ionic liquid plasticizer and aniline, and stir for 1 hour to make the polyacrylonitrile powder fully absorb the mixed liquid to obtain a mixture. The mixture was put into a mold, and hot-pressed in a flat vulcanized bed for 20 minutes at a molding temperature of 150° C. and a pressure of 10 MPa to obtain a polyacrylonitrile sheet containing polyaniline monomers.

[0023] Take 40 grams of sheet and immerse in 1000 grams of 1.2mol / L hydrochloric acid aqueous solution, control the temperature at 10°C, slowly add 500 grams of 1.2mol / L hydrochloric acid aqueous solution with 30 grams of ammonium persulfate dissolved in it, react for 4 hours, and the reaction ends Finally, the material was washed with water, and after dryin...

Embodiment 3

[0025] Add 62.5 grams of aniline to 187.5 grams of plasticizer 1-butyl-3-methylimidazolium hexafluorophosphate, stir to make it evenly mixed to obtain a mixed liquid. Put 750 grams of polyacrylonitrile powder in a high-speed mixer, slowly add the mixed liquid of ionic liquid plasticizer and aniline, and stir for 2 hours to make the polyacrylonitrile powder fully absorb the mixed liquid to obtain a mixture. The mixture was put into a mold, and hot-pressed in a flat vulcanized bed for 10 minutes at a molding temperature of 160° C. and a pressure of 20 MPa to obtain a polyacrylonitrile sheet containing polyaniline monomer.

[0026] Take 30 grams of sheet and immerse in 1000 grams of 1.0 mol / L hydrochloric acid aqueous solution, control the temperature at 20°C, slowly add 500 grams of 1.0 mol / L hydrochloric acid aqueous solution with 50 grams of ferric oxide, react for 8 hours, and the reaction ends Finally, the material is washed with water, and after drying, a polyacrylonitrile / ...

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Abstract

The invention discloses a preparation method of a polyacrylonitrile / ionic liquid / polyaniline conducting composite material, which comprises the following steps: (1) adding aniline into 1-butyl-3-methylimidazolyl hexafluorophosphate, and stirring uniformly to obtain a mixed liquid; (2) putting polyacrylonitrile powder into a high-speed mixer, slowly adding the mixed liquid in the step (1), and stirring for 1-3 hours to obtain a mixture; (3) putting the mixture in the step (2) into a mold, and carrying out hot pressing in a flat vulcanizing bed for 10-30 minutes to obtain a polyaniline-monomer-containing polyacrylonitrile sheet; and (4) immersing the sheet in the step (3) into an acid-doped water solution, reacting for 2-10 hours, cleaning the material with water after the reaction finishes, and drying to obtain the polyacrylonitrile / ionic liquid / polyaniline composite conducting material. According to the method, the aniline and ionic liquid plasticizer 1-butyl-3-methylimidazolyl hexafluorophosphate are blended to synergically plasticize the polyacrylonitrile, and then, melting is performed to prepare the product.

Description

technical field [0001] The invention belongs to the technical field of composite conductive materials, and in particular relates to a polyacrylonitrile / ionic liquid / polyaniline composite conductive material and a preparation method thereof. Background technique [0002] The antistatic modification method currently used for ordinary polymer materials mainly adopts the method of adding antistatic agents or conductive fillers. Adding an antistatic agent mainly has the problems that the antistatic performance is affected by the relative humidity of the air and poor durability; adding a conductive filler mainly has the problems of uneven conductivity and a decline in the mechanical properties of the material. In recent years, conductive polymers have been favored by more researchers because of their light weight, low cost and excellent electrical conductivity. The intersection of electrochemistry and solid state physics. Among many conductive polymers, compared with other condu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/14C08L79/02C08L33/20C08G73/02C08K5/49B29C35/02
Inventor 张慧勤潘玮陈燕李爱梅刘红燕
Owner ZHONGYUAN ENGINEERING COLLEGE
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