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A kind of anticorrosion coating and preparation method thereof

A technology of anti-corrosion coatings and functional fillers, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of affecting anti-corrosion effect, coating adhesion and other performance deterioration, poor anti-corrosion effect, etc. The effect of good adhesion and good anti-corrosion performance

Inactive Publication Date: 2017-12-22
HAINAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to improve the anti-corrosion properties of the currently disclosed zinc-rich coatings, on the one hand, by increasing the zinc content in the coating, but when the zinc content in the coating increases, the performance such as adhesion of the coating will deteriorate, which will affect the anti-corrosion effect; on the other hand, by preparing a solvent-based Paint, improve adhesion and reduce zinc content, but the anti-corrosion effect is not good

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  • A kind of anticorrosion coating and preparation method thereof
  • A kind of anticorrosion coating and preparation method thereof
  • A kind of anticorrosion coating and preparation method thereof

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preparation example Construction

[0029] The present invention also provides a kind of preparation method of described coating, comprising:

[0030] Mixing 35-55 parts by weight of metal powder, 45-55 parts by weight of resin, 1-5 parts by weight of functional filler and 10-50 parts by weight of auxiliary materials to obtain a mixture;

[0031] mixing the mixture with 20-40 parts by weight of a curing agent to obtain an anti-corrosion coating;

[0032] Wherein, the functional filler is one or more of conductive carbon black, conductive carbon fiber and graphene.

[0033] According to the present invention, the present invention mixes 35-55 parts by weight of metal powder, 45-55 parts by weight of resin, 1-5 parts by weight of functional filler and 10-50 parts by weight of auxiliary materials to obtain a mixture; the metal powder is One or both of zinc powder and zinc-aluminum powder. The present invention has no special requirements on the shape and particle size of the metal powder. Wherein, when the metal p...

Embodiment 1

[0039]28 parts by weight of silica sol, 30 parts by weight of epoxy resin, 3 parts by weight of propylene glycol, 2 parts by weight of n-butanol, and 2 parts by weight of silane coupling agent (kh550) are mixed, then 0.2 parts by weight of conductive carbon black, conductive carbon fiber 1 part by weight, 3 parts by weight of nano-ceramic powder, 4 parts by weight of titanium dioxide, 38 parts by weight of flaky zinc-aluminum powder (the mass ratio of zinc and aluminum is 8:2) gradually added, and stirred evenly at 1000-1200 rpm, that is to get the mixture. The mixture is mixed with the polyamide curing agent in a mass ratio of 4:1 to obtain an anti-corrosion coating;

[0040] The obtained anti-corrosion coating film is surface-dried at room temperature for 6 minutes, and the coating is hard-dried after 24 hours.

[0041] The obtained coating was tested according to the GB1720-79 standard, and the result showed that the adhesion strength of the coating was grade 1.

[0042] ...

Embodiment 2

[0044] 29 parts by weight of silica sol, 30 parts by weight of epoxy resin, 4 parts by weight of propylene glycol, 2 parts by weight of n-butanol, and 2 parts by weight of silane coupling agent (kh550) are mixed, then 0.1 part by weight of conductive carbon black, conductive carbon fiber 3 parts by weight, 4 parts by weight of nano-ceramic powder, 4 parts by weight of titanium dioxide, 45 parts by weight of flaky zinc-aluminum powder (the mass ratio of zinc and aluminum is 8:2), and gradually add 45 parts by weight, and stir evenly at 1000-1200 rpm, that is to get the mixture. The mixture is mixed with the polyamide curing agent in a mass ratio of 4:1 to obtain an anti-corrosion coating;

[0045] The obtained anti-corrosion coating film is surface-dried at room temperature for 7 minutes, and the coating is solidly dried after 24 hours.

[0046] The obtained coating was tested according to the GB1720-79 standard, and the result showed that the adhesion strength of the coating ...

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Abstract

The invention provides an anticorrosive coating and a preparation method. The anticorrosive coating comprises the following components in parts by weight: 35-55 parts of metal powder, 45-55 parts of resin, 1-5 parts of functional filler, 10-50 parts of an auxiliary material mixture and 20-40 parts of a curing agent, wherein the functional filler added in the anticorrosive coating is one or more of conductive carbon black, conductive carbon fiber or graphene, so that the anticorrosive coating obtained by the method provided by the invention still has very good anticorrosive performance under the condition that the content of the metal powder is relatively low, and the anticorrosive coating also has good adhesive force; moreover, the anticorrosive coating provided by the invention is stable in performance, has no special requirement for construction conditions, and can be applied widely.

Description

technical field [0001] The invention relates to metal surface corrosion protection technology, in particular to an anti-corrosion coating and a preparation method thereof. Background technique [0002] Because metal corrosion brings huge losses to the global economy, metal corrosion protection is highly valued by countries all over the world. At present, metal corrosion protection mainly adopts the method of coating, and zinc-rich coatings are widely used due to their outstanding performance. [0003] In order to improve the anti-corrosion properties of the currently disclosed zinc-rich coatings, on the one hand, by increasing the zinc content in the coating, but when the zinc content in the coating increases, the performance such as adhesion of the coating will deteriorate, which will affect the anti-corrosion effect; on the other hand, by preparing a solvent-based Coatings improve the adhesion and reduce the amount of zinc, but the anti-corrosion effect is also not good. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/10
CPCC08K3/04C08K3/36C08K5/053C08K7/06C08K13/04C08K2201/011C09D5/103C09D5/106C09D7/61C09D7/63C09D7/70C09D163/00
Inventor 郝万军何楠陈伟鹏郁信丹夏兰
Owner HAINAN UNIV