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Carbon nanotube/polyaniline composite material with electrochemical anti-corrosive action, preparation method and application

A carbon nanotube and composite material technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of difficult dispersibility, difficult anti-corrosion application, etc., and achieve the effects of excellent anti-corrosion performance, excellent electrochemical anti-corrosion effect, and good dispersibility.

Active Publication Date: 2017-03-15
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the difficulty of dispersing in the resin matrix also brings difficulties to its anti-corrosion application.

Method used

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  • Carbon nanotube/polyaniline composite material with electrochemical anti-corrosive action, preparation method and application
  • Carbon nanotube/polyaniline composite material with electrochemical anti-corrosive action, preparation method and application
  • Carbon nanotube/polyaniline composite material with electrochemical anti-corrosive action, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Preparation of carbon nanotube / polyaniline composite materials:

[0031] Weigh 0.116g of carbon nanotubes, 0.93g of aniline and 0.10g of emulsifier 2A-1 and disperse them in 80mL of distilled water, transfer them to a 250mL three-neck flask, and stir ultrasonically for 60min. Then add 0.4g H 2 SO 4 , adjust the pH of the system to 1, continue ultrasonic stirring for 15 min and move to ice bath conditions.

[0032] Weigh 2.28g of initiator ammonium sulfate (APS) and dissolve it in 20mL of 0.05mol / L sulfuric acid aqueous solution, transfer it to a constant pressure dropping funnel, and slowly add it dropwise to the above mixing system for 40 minutes. The in-situ oxidative polymerization reaction was carried out for 6 hours under the condition of ice bath at 0-4°C.

[0033] After the reaction, the solid-phase product was washed with ethanol and deionized water, and finally vacuum-dried and ground at 80°C to obtain a carbon nanotube / polyaniline composite material (C-P...

Embodiment 2

[0041] 1. Preparation of carbon nanotube / polyaniline composite materials:

[0042] Weigh 0.116g of carbon nanotubes, 0.464g of aniline and 0.058g of emulsifier 2A-1 and disperse them in 80mL of distilled water, transfer them to a 250mL three-neck flask, and stir ultrasonically for 60min. Then add 0.4g H 2 SO 4 , adjust the pH of the system to 2, continue ultrasonic stirring for 15 min and move to ice bath conditions.

[0043] Weigh 2.28g of initiator APS and dissolve it in 20mL of 0.05mol / L sulfuric acid aqueous solution, transfer it to a constant pressure dropping funnel, and slowly add it dropwise to the above mixing system for 40min. React for 6 hours under the condition of ice bath at 0~4℃.

[0044] After the reaction, the product was washed with ethanol and deionized water, and finally vacuum-dried and ground at 80°C to obtain a carbon nanotube / polyaniline composite (C-PANI 2).

[0045] The transmission electron microscope image of the composite material made in this ...

Embodiment 3

[0049] 1. Preparation of carbon nanotube / polyaniline composite materials:

[0050] Weigh 0.116g of carbon nanotubes, 0.232g of aniline and 0.035g of emulsifier 2A-1 and disperse them in 80mL of distilled water, transfer them to a 250ml three-neck flask, and stir ultrasonically for 60min. Then add 0.4g H 2 SO 4 , adjust the pH of the system to 1, continue ultrasonic stirring for 15 min and move to ice bath conditions.

[0051] Weigh 2.28g of initiator APS and dissolve it in 20mL of 0.05mol / L sulfuric acid aqueous solution, transfer it to a constant pressure dropping funnel, and slowly add it dropwise to the above mixing system for 40min. React for 6 hours under the condition of ice bath at 0~4℃.

[0052] After the reaction, the product was washed with ethanol and deionized water, and finally vacuum-dried and ground at 80°C to obtain a carbon nanotube / polyaniline composite material (C-PANI 3).

[0053] The transmission electron microscope image of the composite material made...

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Abstract

The invention provides a carbon nanotube / polyaniline composite material, a preparation method and application, and relates to the technical field of corrosion prevention of metal materials. The preparation method comprises the following steps of dispersing carbon nanotube, aniline and emulsifier into deionized water under the ultrasonic condition; adjusting the pH (potential of hydrogen) value of a mixing system, adding ammonium persulfate, and performing in-situ oxidizing and polymerizing; washing a solid-phase product by ethyl alcohol and the deionized water, drying and grinding, so as to obtain the carbon nanotube / polyaniline composite material. The prepared carbon nanotube / polyaniline composite material has the advantages that a dendritic crystal core-shell structure is formed, and the excellent electrochemical corrosion function is realized in a wide pH range; the carbon nanotube / polyaniline composite material is used as anti-corrosive filler, and has good dispersing property in the epoxy modified acrylate resin.

Description

technical field [0001] The invention relates to the anticorrosion technology of metal materials, in particular to the technical field of production of electrochemical anticorrosion preparations. Background technique [0002] Metal corrosion is ubiquitous, covering various fields such as chemical industry, shipbuilding, aerospace, transportation facilities, housing construction, etc. It endangers people's life and hinders the development of society. First of all, metal corrosion has brought huge economic losses to people. The annual economic loss caused by corrosion worldwide is about 1 trillion US dollars. Secondly, corrosion also consumes manpower and wastes resources to a large extent. The steel and equipment scrapped due to corrosion every year in the world is about 30% of the original output. Furthermore, metal corrosion often causes problems such as environmental pollution and safety accidents, and causes inconvenience to people's production and life. Among the curr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02C08K7/24C08L79/02C09D133/00C09D179/02C09D7/12C09D5/08
CPCC08G73/0266C08K7/24C09D5/08C09D7/70C09D133/00C08L79/02
Inventor 朱爱萍邱国栋
Owner YANGZHOU UNIV
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