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A kind of method utilizing rosin soap to prepare water-dispersible polypyrrole conductive nanoparticles

A technology of conductive nano and rosin soap, which is applied in the direction of nanotechnology, can solve the problems of poor conductivity and other problems, and achieve the effect of short synthesis time, large specific surface area and high conductivity

Active Publication Date: 2019-07-23
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Pyrrole monomer can be rapidly oxidized and polymerized into polypyrrole in the presence of an oxidizing agent, but pure polypyrrole has poor conductivity without doping, and must be doped with a dopant to show good conductivity. After doping, the conductivity Rates tend to increase by number 10 3 -10 4 times

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Dissolve 1 part by mass of the oxidant ammonium persulfate in 100 parts by mass of deionized water, then add 1 part by mass of sodium rosinate and stir and mix evenly to prepare a mixed solution.

[0013] (2) Add 1 mass part of pyrrole monomer to the mixed solution prepared in step (1) and stir and react at 25°C for 5 hours to make pyrrole oxidatively polymerized, then suction filter, and the resulting product is washed with deionized water until The filtrate is neutral, and the obtained filter cake is vacuum-dried at 40° C., and finally pulverized to obtain a black powder, which is water-dispersible polypyrrole conductive nanoparticles.

[0014] The conductivity at room temperature of the water-dispersible polypyrrole conductive nanoparticles prepared in this example was determined to be 3.3 S / cm.

Embodiment 2

[0016] (1) Dissolve 4 parts by mass of the oxidant ammonium persulfate in 200 parts by mass of deionized water, then add 20 parts by mass of sodium abietate and stir and mix evenly to prepare a mixed solution.

[0017] (2) Add 1 mass part of pyrrole monomer to the mixed solution prepared in step (1) and stir and react at 0°C for 10 hours to make pyrrole undergo oxidative polymerization, then suction filter, and the resulting product is washed with deionized water until The filtrate is neutral, and the obtained filter cake is vacuum-dried at 40° C., and finally pulverized to obtain a black powder, which is water-dispersible polypyrrole conductive nanoparticles.

[0018] The conductivity at room temperature of the water-dispersible polypyrrole conductive nanoparticles prepared in this example was determined to be 15 S / cm.

Embodiment 3

[0020] (1) Dissolving 2 parts by mass of the oxidizing agent ammonium persulfate in 100 parts by mass of deionized water, then adding 10 parts by mass of potassium abietate and stirring and mixing uniformly to prepare a mixed solution.

[0021] (2) Add 1 mass part of pyrrole monomer to the mixed solution prepared in step (1) and stir and react at 0°C for 8 hours to make pyrrole undergo oxidative polymerization, then suction filter, and the resulting product is washed with deionized water until The filtrate is neutral, and the obtained filter cake is vacuum-dried at 40° C., and finally pulverized to obtain a black powder, which is water-dispersible polypyrrole conductive nanoparticles.

[0022] The conductivity at room temperature of the water-dispersible polypyrrole conductive nanoparticles prepared in this example was determined to be 6.4 S / cm.

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Abstract

The invention discloses a method for preparing a water-dispersible polypyrrole conducting nanoparticle by utilizing rosin soap. The method comprises the steps that 1-4 parts by mass of oxidant ammonium persulfate is dissolved in 100-200 parts by mass of deionized water; 1-20 parts by mass of rosin soap is added, wherein the rosin soap is sodium rosinate or potassium rosinate; stirring and uniform mixing are performed; 1 part by mass of pyrrole monomer is added; a stirring reaction is performed for 5-10h at 0-25 DEG C to achieve pyrrole oxidation polymerization; suction filtration is performed; an obtained product is washed by deionized water until a filtrate is neutral; an obtained filter cake is subjected to vacuum drying at 40 DEG C; and finally crushing is performed to obtain black powder, namely the water-dispersible polypyrrole conducting nanoparticle. The method is simple in preparation technology and short in synthesis time; raw materials are cheap and easy to obtain; and the prepared polypyrrole conducting nanoparticle is large in specific surface area, high in reaction conversion rate, high in conductivity and water-dispersible, and can be used in the fields of anticorrosive paint, electromagnetic shielding, electrode materials and the like.

Description

technical field [0001] The invention belongs to the technical field of conductive polypyrrole materials, in particular to a method for preparing water-dispersible polypyrrole conductive nanoparticles by using rosin soap. Background technique [0002] Polypyrrole (Polypyrrole, PPy) is an important electronically conductive polymer, and it is a heterocyclic conjugated conductive polymer that has been studied and used more. Because of its excellent air stability, high electrical conductivity, environmental non-toxicity and reversible redox property, polypyrrole has attractive application prospects in microelectronics, electrochemistry, biotechnology, etc., and has received special attention. . [0003] Pyrrole monomer can be rapidly oxidized and polymerized into polypyrrole in the presence of an oxidizing agent, but pure polypyrrole has poor conductivity without doping, and must be doped with a dopant to show good conductivity. After doping, the conductivity Rates tend to inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/06B82Y40/00
CPCB82Y40/00C08G73/0611
Inventor 杨超臧利敏徐旭张发爱周焕福余彩莉
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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