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Preparation method and use of nano-polyaniline

A technology of nano-polyaniline and polyaniline, which is applied in the field of synthesis of nano-antistatic plastic additive polyaniline, can solve the problems of poor compatibility between graphite and plastics, poor impact resistance, and brittle plastic films, and achieves simple and convenient preparation methods. good compatibility

Inactive Publication Date: 2014-09-24
常州和方环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the antistatic agent used in plastic packaging films for electronic products uses conductive graphite powder, and the conductivity of conductive graphite powder usually decays with time, and the poor compatibility of graphite and plastics will also cause plastic films to change. Brittle, poor impact resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of nano-polyaniline of the present invention adopts 0.5 liter of hydrochloric acid with a concentration of 1 mole / liter to react with 0.25 mole of aniline to form an aniline hydrochloride aqueous solution, cool to room temperature, and then atomize the aniline hydrochloride aqueous solution, and then atomize Particle diameter, 0.2-1.5 microns, mixed with oxidant chlorine dioxide gas, aniline hydrochloride in the atomized particles reacts with chlorine dioxide to generate polyaniline, and after drying, uniform polyaniline with a particle size of 20-80 nanometers is obtained. Aniline antistatic powder, conductivity 10 -1---- 10 1 S / cm.

Embodiment 2

[0024] The preparation method of nano-polyaniline of the present invention adopts 0.5 liter of sulfuric acid with a concentration of 0.5 mol / liter to react with 0.25 mol of aniline to form an aniline sulfate aqueous solution, cools to room temperature, and then atomizes the aniline hydrochloride aqueous solution, after atomization Fog particle diameter: 0.2-1.5 microns, mixed with oxidant chlorine dioxide gas, aniline sulfate in the atomized particles reacts with chlorine dioxide to generate polyaniline, after drying, a uniform polyaniline with a particle size of 0.03-0.1 microns is obtained Aniline antistatic powder, conductivity 10 -1---- 10 1 S / cm.

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Abstract

The invention relates to a preparation method of nano-polyaniline. The preparation method comprises the following steps of: (1) taking hydrochloric acid or sulfuric acid and performing reaction with aniline to generate an aniline hydrochloride aqueous liquor or an sulfate sulfate aqueous liquor; (2) cooling the aniline hydrochloride aqueous liquor or the sulfate sulfate aqueous liquor to room temperature and atomizing; (3) mixing the atomized the aniline hydrochloride aqueous liquor or the sulfate sulfate aqueous liquor with chlorine dioxide gas and performing reaction of aniline hydrochloride or sulfate sulfate in atomized particles with chlorine dioxide to generate polyaniline; and (4) drying the polyaniline obtained the in the step (3) to obtain polyaniline particles. The method for preparing polyaniline provided by the invention is simple and convenient, and polyaniline is higher in purity with lesser chemical materials. Meanwhile, the polyaniline prepared is used as an antistatic agent, and the conductivity is 0.1-10S / cm. In the depositing process, attenuation of conductivity does not occur, and the nano-polyaniline is further good in compatibility with plastic.

Description

technical field [0001] The invention relates to a nanometer polyaniline, a preparation method and an application, in particular to the synthesis of a nanometer antistatic plastic additive polyaniline. Background technique [0002] Any object has its own static charge, which can be negative or positive. The accumulation of static charges will affect or even endanger life or industrial production. Guide / eliminate the accumulated harmful charges so that they are not harmful to production / Chemicals that cause inconvenience or harm to life are called antistatic agents. According to different ways of use, antistatic agents can be divided into two types: external coating type and internal mixing type. External coating antistatic agent refers to a class of antistatic agent used on the surface of polymer materials. Generally, it is formulated into a solution with a mass fraction of 0.5% to 2.0% with water or ethanol before use, and then it is attached to the surface of the polymer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/02C08L79/02
Inventor 居明张今越张念忠居荣
Owner 常州和方环保科技有限公司
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