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Polyaniline/carbon nano tube/nanometer silver particle conductive composite material and preparation method thereof

A conductive composite material and nano-silver particle technology, applied in the field of composite materials, can solve problems such as control signal interference and signal transmission obstacles, and achieve the effects of solving the problem of reunion, low cost and high production efficiency

Inactive Publication Date: 2009-09-09
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of large-scale integrated circuits, electronic circuits and components are developing in the direction of integration, miniaturization, and high-speed, and weak currents are used to achieve transmission, which makes control signals susceptible to external electromagnetic interference. obstacles to signal transmission

Method used

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  • Polyaniline/carbon nano tube/nanometer silver particle conductive composite material and preparation method thereof
  • Polyaniline/carbon nano tube/nanometer silver particle conductive composite material and preparation method thereof
  • Polyaniline/carbon nano tube/nanometer silver particle conductive composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, measure 50ml of 0.001M silver nitrate solution prepared in advance in a 250ml round-bottomed flask, add 50ml absolute ethanol and 10ml polyethylene glycol-400, place in an ultrasonic instrument, ultrasonic 15min at 40KHZ, 200W, make Mix it evenly. Add 0.04 g of purified carbon nanotubes, and continue to sonicate for 10 min. 60ml of 0.001M ascorbic acid solution was added dropwise under vigorous stirring, and the reaction was stirred at room temperature for 6h. The reaction product was filtered with a microporous membrane, washed, vacuum-dried at 60° C. for 24 hours, and ground to obtain a composite filler of carbon nanotubes and nano-silver particles, which was set aside.

[0042] Add the above-prepared composite filler of carbon nanotubes and nano-silver particles into 1ml of aniline, place it in an ultrasonic instrument, and sonicate at 40KHZ and 200W for 15min, then add 40ml of 1M HCl to it, and continue to sonicate for 10min. In an ice-salt bath (0-5...

Embodiment 2

[0044] Example 2, take 50ml of 0.001M silver nitrate solution prepared in advance in a 250ml round bottom flask, add 55ml of absolute ethanol and 10ml of polyethylene glycol-400, place it in an ultrasonic instrument, and ultrasonicate for 15min at 40KHZ and 200W. Make it well mixed. Add 0.06 g of purified carbon nanotubes, and continue to sonicate for 10 min. Under the condition of vigorous stirring, 70 ml of 0.001M ascorbic acid solution was added dropwise, and the reaction was stirred at room temperature for 6 h. The reaction product was filtered with a microporous membrane, washed, vacuum-dried at 60° C. for 24 hours, and ground to obtain a composite filler of carbon nanotubes and nano-silver particles, which was set aside.

[0045] Add the above-prepared composite filler of carbon nanotubes and nano-silver particles into 1ml of aniline, place it in an ultrasonic instrument, and sonicate at 40KHZ and 200W for 15min, then add 50ml of 1M HCl to it, and continue to sonicate f...

Embodiment 3

[0047] Example 3, take 50ml of 0.001M silver nitrate solution prepared in advance in a 250ml round bottom flask, add 60ml of absolute ethanol and 10ml of polyethylene glycol-400, place it in an ultrasonic machine, and ultrasonicate for 15min at 40KHZ and 200W. Make it well mixed. Add 0.08 g of purified carbon nanotubes, and continue to sonicate for 10 min. 80ml of 0.001M ascorbic acid solution was added dropwise under vigorous stirring, and the reaction was stirred at room temperature for 6h. The reaction product was filtered with a microporous membrane, washed, vacuum-dried at 60° C. for 24 hours, and ground to obtain a composite filler of carbon nanotubes and nano-silver particles, which was set aside.

[0048] Add the composite filler of carbon nanotubes and nano-silver particles prepared above into 1ml of aniline, place it in an ultrasonic instrument, and sonicate at 40KHZ and 200W for 15min, then add 60ml of 1M HCl to it, and continue to sonicate for 10min. In an ice-sa...

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Abstract

The invention provides a novel polyaniline / carbon nano tube / nanometer silver particle conductive composite material which belongs to the technical field of composite materials. The novel polyaniline / carbon nano tube / nanometer silver particle conductive composite material uses a two-phase composite material of carbon nano tube / nanometer silver particle as conductive filling and effectively utilizes the supersonic technology to lead the nanometer silver particle to uniformly disperse into polyaniline; the polyaniline grows on the surface of the carbon nano tube and completely covers the carbon nano tube. The invention solves the glomeration problem in aniline polymerization, can lead the nanometer silver particle to uniformly disperse into a polyaniline structure, effectively improves the conductive property and the thermodynamics stability of the polyaniline, and has simple process, convenient operation, mild reaction conditions, low production cost, high production efficiency, and better industrial production prospect.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a nano-conductive composite material, in particular to a three-item conductive composite material with polyaniline as the main body and carbon nanotubes and nano-silver particles as fillers. The invention also relates to a preparation method of the polyaniline / carbon nanotube / nano silver particle conductive composite material. Background technique [0002] With the rapid development of electronics industry and information technology and other industries, the demand for conductive functional polymer materials is becoming more and more urgent. Generally speaking, polymer materials are mostly insulators, which have good mechanical properties and can be used as electrical insulating materials by utilizing their dielectric properties. With the rapid development of large-scale integrated circuits, electronic circuits and components are developing in the direction of integrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02C08K3/04C08K3/08H01B1/24H01B1/22C08L79/02
Inventor 莫尊理冯超王君史华锋
Owner NORTHWEST NORMAL UNIVERSITY
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