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Preparation method of nanopolyaniline-containing compound anti-corrosion coating auxiliary agent

A nano-polyaniline, anti-corrosion coating technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings and other directions, can solve the problems of poor compatibility with epoxy coatings, and the improvement of performance is not better reflected. Achieve the effect of increasing adhesion and avoiding secondary agglomeration

Active Publication Date: 2016-04-06
T&H NOVEL MATERIALS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compatibility between silica particles and epoxy coatings is not good, and polyaniline has not formed a nanowire structure, and the improvement of its performance has not been better reflected.

Method used

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  • Preparation method of nanopolyaniline-containing compound anti-corrosion coating auxiliary agent
  • Preparation method of nanopolyaniline-containing compound anti-corrosion coating auxiliary agent
  • Preparation method of nanopolyaniline-containing compound anti-corrosion coating auxiliary agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Add 0.25g polyvinylpyrrolidone, 45mL absolute ethanol, magnetic stirrer to the three-necked flask in turn, turn on the cycle of condensation, magnetic stirring and blow nitrogen to purge and remove oxygen for 15min, and add 5g methacrylic acid to shrink with injection needle. Glycerides, stir fully for 0.5h at a uniform speed at room temperature, and raise the temperature of the system to 70°C.

[0030] (2) Fully dissolve 0.05 g of initiator azobisisobutyronitrile in 5 mL of absolute ethanol. After the temperature of the system in step (1) stabilizes, add it to the system with an injection needle and react for 24 hours.

[0031] (3) Centrifuge the product obtained in step (2) at a speed of 2000r / min for 2 minutes on a centrifuge, pour out the supernatant, add ethanol, and then ultrasonically disperse, repeat the above centrifugation steps, repeat three times, and then repeat the above steps with distilled water. Centrifugal washing three times to wash away the surfactant...

Embodiment 2

[0036] (1) Adjust the mass of polyvinylpyrrolidone in Example 1 to 0.50g;

[0037] (2)~(6) Same as Example 1.

Embodiment 3

[0039] (1) Adjust the mass of polyvinylpyrrolidone in Example 1 to 0.75g;

[0040] (2)~(6) Same as Example 1.

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Abstract

The invention discloses a preparation method of a nanopolyaniline-containing compound anti-corrosion coating auxiliary agent, and relates to a polymer nano composite material. Monodisperse micron-graded poly(methyl methacrylate)glycidyl ester microspheres are obtained through dispersion polymerization; under an acid doped environment, aniline monomers are polymerized on the microsphere surface, polyaniline nanowires are loaded on the microspheres, and thus the micron-graded spherical anti-corrosion auxiliary agent is obtained; the auxiliary agent is mixed with epoxy matrix resin and all kinds of solvents for adjusting a coating, the microspheres are dissolved by a solvent, and at the same time, the polyaniline nanowires are dispersed in the coating; phenylamine has less use amount, can be highly dispersed, also has crosslinking functions, has large practical meaning, and has excellent industrialization prospect.

Description

Technical field [0001] The invention belongs to the technical field of polymer nano composite materials, and relates to a preparation method of a composite anticorrosive coating additive containing nano polyaniline. Background technique [0002] The corrosion of metals will cause major losses to the development of the national economy, and also seriously threaten the safety of various engineering equipment. A lot of practice shows that the use of anti-corrosion coatings to protect metal surfaces is the most effective means of metal anti-corrosion. With the deepening of research, the current development of anti-corrosion coatings, especially heavy-duty coatings, is moving in the direction of high performance, low addition, and multi-function. Since the discovery of conductive polymers in the 1980s, a series of conductive polymers such as polyacetylene, polyaniline, and polypyrrole have been rapidly studied in depth. The new type of anticorrosive coatings using conductive polymers...

Claims

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Application Information

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IPC IPC(8): C09D7/12C09D163/00C09D5/08C08F120/32C08G73/02
CPCC08F120/32C08G73/0266C09D5/08C09D7/70C09D163/00C08L79/02
Inventor 戴李宗谢泓辉许一婷袁丛辉毛杰刘诚陈国荣罗伟昂
Owner T&H NOVEL MATERIALS (SUZHOU) CO LTD
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