High obstructive polyaniline composite film and its preparation method and use

A high-barrier, composite film technology, applied in the field of functional materials, can solve the problems of insufficient strength of modified polyaniline and affect the conductivity, and achieve the effects of low cost, good repeatability and convenient operation

Inactive Publication Date: 2009-07-01
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing technology that the strength of modified polyaniline is not high enough, and the use environment will affect its electrical conductivity, so as to provide a waterproof material with high barrier properties on any material and any shape of substrate. , anti-corrosion, high adhesion and high strength conductive polyaniline composite film

Method used

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  • High obstructive polyaniline composite film and its preparation method and use
  • High obstructive polyaniline composite film and its preparation method and use
  • High obstructive polyaniline composite film and its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1) 3 g of polyaniline in intrinsic state was dissolved in 100 g of chloroform, stirred for 12 hours, and the insoluble matter was filtered off to obtain a solution of polyaniline in intrinsic state;

[0050] 2) 3 g of vinylidene chloride-acrylonitrile copolymer (copolymerization ratio 9:1) was dissolved in 5 g of chloroform to obtain the copolymer solution;

[0051] 3) Add 10 g of the intrinsic polyaniline solution obtained in step 1) to the polyvinylidene chloride copolymer solution obtained in step 2), and mix evenly to obtain a uniform intrinsic polyaniline mixed solution;

[0052] 4) Put the intrinsic state polyaniline mixed solution prepared in step 3) into the liquid supply device of the electrospray device, and the working distance (the distance between the needle tip and the receiving device) is 16 cm; the receiving device is covered with a thin metal aluminum 40cm 2 square printing paper; turn on the high-voltage power supply, adjust the electrospray voltage t...

Embodiment 2

[0063] 1) 3 g of polyaniline in intrinsic state was dissolved in 100 g of N,N-dimethylformamide, stirred for 12 hours, and insolubles were filtered off to obtain polyaniline in intrinsic state;

[0064] 2) 3g of vinylidene chloride-methyl acrylate copolymer (copolymerization ratio 9:1) was dissolved in 5g of N,N-dimethylformamide to obtain the copolymer solution;

[0065] 3) Add 10 g of the intrinsic polyaniline solution obtained in step 1) to the polyvinylidene chloride copolymer solution obtained in step 2), and mix evenly to obtain a uniform intrinsic polyaniline mixed solution;

[0066] 4) Put the intrinsic state polyaniline mixed solution prepared in step 3) into the liquid supply device of the electrospray device, and the working distance (the distance between the needle tip and the receiving device) is 10 cm; Placed carrier film; turn on the high-voltage power supply, adjust the electrospray voltage to 10kV, and the conductive polyaniline mixture is sprayed from the spr...

Embodiment 3

[0070] 1) 3 g of polyaniline in intrinsic state was dissolved in 100 g of N,N-dimethylformamide, stirred for 12 hours, and insolubles were filtered off to obtain polyaniline in intrinsic state;

[0071] 2) 1g of vinylidene chloride-vinyl acetate copolymer (copolymerization ratio 9:1) was dissolved in 10g of N,N-dimethylformamide to obtain the copolymer solution;

[0072] 3) Add 5 g of the intrinsic polyaniline solution obtained in step 1) to the polyvinylidene chloride copolymer solution obtained in step 2), and mix evenly to obtain a uniform intrinsic polyaniline mixed solution;

[0073] 4) Put the intrinsic state polyaniline mixed solution prepared in step 3) into the liquid supply device of the electrospray device, and the working distance (the distance between the needle tip and the receiving device) is 8 cm; the receiving device is placed on a metal aluminum sheet cotton fiber fabric; turn on the high-voltage power supply, adjust the electrospray voltage to 12kV, and the ...

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Abstract

The invention relates to a polyaniline composite film with high barrier property, which is a film composed of polyaniline and polyvinylidene chloride copolymer microspheres with a diameter of 100-1000 nanometers. After mixing the aniline solution and the polyvinylidene chloride copolymer solution, put it into the liquid supply device of the electrospray device, spray the mixed liquid from the spray device, and then the solvent volatilizes to obtain solidified intrinsic state polyaniline on the receiving device Composite film; then obtained by irradiating under a 45W ultraviolet lamp for 1 to 30 minutes. The composite film can be formed on any material and any shape of substrate, and the thickness and conductivity of the film are adjustable. It has the properties of electromagnetic shielding, antistatic, waterproof, acid and alkali resistance, and high gas barrier. It can be widely used in military affairs. , navigation, aerospace, mining engineering, medicine and health, hardware, electromechanical, packaging and other industries.

Description

technical field [0001] The invention relates to the field of functional materials, in particular to a waterproof, anti-corrosion, high-strength polyaniline composite film with high barrier properties, and the large-scale preparation of conductive polyaniline by electrostatic spraying combined with ultraviolet light-induced proton doping. The method of aniline composite film and its use. Background technique [0002] As a new type of functional polymer material, conductive polyaniline can be widely used in chemical power supply, electromagnetic shielding, antistatic, electro-induced Discoloration, micro-actuator, information processing and storage, etc., are considered to be the most practical conductive polymers. However, due to the shortcomings of polyaniline material such as high rigidity, insoluble, infusible and poor mechanical properties, its wide application in technology is limited. In order to improve the solubility and processability of conductive polyaniline, con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L79/02C08L27/16
Inventor 朱英万梅香江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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