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Polyaniline/MOF composite coating electrode material as well as preparation method and application thereof

A composite coating and electrode material technology, applied in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of poor metal structure adhesion, limited PANI application, low solubility, etc., to improve performance, wide application and Market value, effect of improving electrochemical performance

Active Publication Date: 2021-03-16
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PANI itself has disadvantages such as poor dispersion, poor adhesion to metal structures, and low solubility in organic solvents, which greatly limit the application of PANI in anti-corrosion coatings.

Method used

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  • Polyaniline/MOF composite coating electrode material as well as preparation method and application thereof
  • Polyaniline/MOF composite coating electrode material as well as preparation method and application thereof
  • Polyaniline/MOF composite coating electrode material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] A kind of polyaniline / MOF composite coating electrode material of the present invention, is synthesized by A component, B component, C component;

[0079] Specific steps are as follows:

[0080] 1) Synthesis of component B: Dissolve 1160mg Co(NO 3 ) 2 ·6H 2 0 and 20mg CTAB, and stirred rapidly; the above solution was quickly dissolved in a mixed solution composed of 18160mg 2-methylimidazole and 280mL deionized water, and vigorously stirred at room temperature for 6h; the precipitate was centrifuged and washed with ethanol 3 times to clarification; The material was placed in a vacuum oven for 12 hours to obtain a ZIF-67 precursor.

[0081] The prepared ZIF-67 precursor was placed in a porcelain boat, and heated in a tube furnace at 5 °C min -1 The speed is heated to 900°C, and deep heat treatment is carried out under N2 atmosphere for 2h; after the burnt material is slowly cooled to room temperature, the Co / Co 4 N-NC; will Co / Co 4 N-NC is ground into powder in a m...

Embodiment 2

[0094] A kind of polyaniline / MOF composite coating electrode material of the present invention, is synthesized by A component, B component, C component;

[0095] Specific steps are as follows:

[0096] 1) Synthesis of component B: Dissolve 1160mg Co(NO 3 ) 2 ·6H 2 0 and 20mg CTAB, and stirred rapidly; the above solution was quickly dissolved in a mixed solution composed of 18160mg 2-methylimidazole and 280mL deionized water, and vigorously stirred at room temperature for 6h; the precipitate was centrifuged and washed with ethanol 3 times to clarification; The material was placed in a vacuum oven for 12 hours to obtain a ZIF-67 precursor.

[0097] Place the prepared ZIF-67 precursor in a porcelain boat, heat it up to 900°C in a tube furnace at a rate of 5°C / min-1, and conduct a deep heat treatment for 2 hours in an N2 atmosphere; cool the fired material slowly After reaching room temperature, the Co / Co 4 N-NC; will Co / Co 4 N-NC is ground into powder in a mortar.

[0098]...

Embodiment 3

[0110] Embodiment three is the same as embodiment one, except that the composite coating electrode material is combined according to the ratio of mass ratio m (component A): m (component B): m (component C) = 1.5: 1: 800 become;

[0111] Step 3) When making the epoxy resin working electrode, the epoxy resin for potting is prepared at a mass ratio of epoxy resin:polyamide:solvent 2=7:3:0.5 and then centrifuged.

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Abstract

The invention provides a polyaniline / MOF composite coating electrode material and a preparation method and application thereof. The coating electrode material is formed by combining a component A, a component B and a component C according to the mass ratio of m(component A) to m (component B) to m(component C) being (1.5-2.5):(1-5):(800-1200). The component A is polyaniline (PANI), the component Bis an MOF structural material (Co / Co4N-N), and the component C is epoxy resin. According to the preparation method, the polyaniline material is modified by doping the MOF structure material, so thatthe electrochemical performance of the polyaniline material is improved, and then the epoxy resin base material is modified by utilizing the modified polyaniline material. The Q235 steel is taken as aresearch object, so that the corrosion protection performance of the epoxy resin base material is improved, and the corrosion resistance of the Q235 steel in a corrosion environment is effectively improved. A process route achieving the best performance is obtained by carrying out experimental exploration on a key material part.

Description

technical field [0001] The invention relates to the technical field of synthesis of organic polymer coating materials, in particular to a polyaniline / MOF composite coating electrode material and its preparation method and application. Background technique [0002] The rapid growth of social economy is largely driven by the progress of industrial technology, and the progress and development of industry stems from the innovation of new materials. However, corrosion is a challenge that hinders the rapid and sustainable use of materials. Although new materials are constantly emerging, how to design long-lasting materials is still a long-term challenge in many practical projects. [0003] Kinetically speaking, the corrosion process is closely related to the presence and concentration of corrosive species that determine whether the corrosion process is a chemical process and / or an electrochemical process. The presence of oxygen causes chemical corrosion, while water is key for el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D179/02C09D5/10C09D7/61
CPCC09D163/00C09D5/10C09D7/61C08L2203/20C08K2201/001C08K2201/011C08L79/02C08K3/08C08K3/28
Inventor 王巍李其原冯荟蒙陈守刚李文
Owner OCEAN UNIV OF CHINA
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