Polyaniline/nano graphite lamella/Eu[3+] nano film material and method for making same

A nano-film material and nano-graphite technology, which is applied in the field of film materials, can solve problems affecting the performance of composite materials and large environmental pollution, and achieve the effects of improving production efficiency, reducing production costs, and solving reunion

Inactive Publication Date: 2008-04-09
NORTHWEST NORMAL UNIVERSITY
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that nano-graphite flakes cannot be evenly dispersed in the polymer at the nanometer level and affect the performance of the composite material and the problem of...

Method used

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  • Polyaniline/nano graphite lamella/Eu[3+] nano film material and method for making same
  • Polyaniline/nano graphite lamella/Eu[3+] nano film material and method for making same

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Embodiment Construction

[0023] 1.83g p-toluenesulfonic acid, 0.05g nano-graphite flakes and 0.03gEu 2 o 3 Dissolve it in 50 mL of distilled water, and after ultrasonicating the mixture at room temperature for half an hour, add 1 mL of aniline monomer, and continue ultrasonicating for 1 hour. Then the mixed solution was transferred into ice water to lower the temperature, and an aqueous solution of ammonium persulfate initiator equal to the mole of the aniline monomer was added dropwise under continuous stirring to initiate the polymerization of the aniline monomer. After reacting in an ice-water bath for 2 hours, stir at room temperature for 24 hours, and break the emulsification with absolute ethanol after the reaction. Finally, filter and wash to obtain polyaniline / nano-graphite flakes / Eu 3+ nano film material.

[0024] Through transmission electron microscopy, it can be seen that the polyaniline / nano-graphite flakes / Eu prepared by the above method 3+ The material forms a special nano-film mate...

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Abstract

The invention discloses a preparation method of polyaniline/nanometer graphite thin section/Eu3+ nanometer thin film materials. The invention adopts field emulsion polymerization and takes advantages of organic protonic acid as dopant and surface active agent for toluene sulphonic acid, leading the organification of the nanometer graphite thin section and rare earth particle and the preparation of the composite to be carried out simultaneously, the agglomeration problem of nanometer particle is effectively solved, thus leading the compact combination of the nanometer graphite thin section, the rare earth particle Eu3+ and polymer base polyaniline and uniform dispersion in the polymer base with nanometer particle size, greatly enhancing the thermal stability and conductivity and the electrochemical performance of the composite, meanwhile, simplifying the preparation procedures of the composite, shortening preparation time, improving production efficiency, and reducing production cost. In addition, the field emulsion polymerization uses water as a reaction medium and needs no organic solvent chloroform, etc., and effectively avoids environment pollution and embodies the feature of green chemistry.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a thin film material, in particular to a nano thin film material with polyaniline as the main body, in particular to a nano thin film material composed of nano graphite flakes, polymers and rare earth nanoparticles and its preparation method. Background technique [0002] As a new type of polymer material, polyaniline has the advantages of excellent electrical conductivity, stable chemical properties, simple synthesis process, and low raw material cost, and has received great attention from researchers at home and abroad. It has wide application prospects in chemical power supply, sensor, anti-corrosion, anti-static, stealth material, electrochromic, electromagnetic shielding material, biochemistry, etc., so it is considered to be the most promising class of polymer materials. However, the insoluble and infusible characteristics of polyaniline lead to its poor processabi...

Claims

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Application Information

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IPC IPC(8): C08L79/02C08K3/04C08J5/18
Inventor 莫尊理吴迎冰牛贵平陈红
Owner NORTHWEST NORMAL UNIVERSITY
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