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Super-hydrophobic microcapsule polymer cement-based anticorrosive coating as well as preparation method and application thereof

A technology of anti-corrosion coatings and microcapsules, applied in the field of cement anti-corrosion coatings

Active Publication Date: 2020-11-03
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For the above-mentioned problems, the object of the present invention is to provide a kind of superhydrophobic microcapsule polymer cement-based anticorrosion coating and its preparation method and application, this anticorrosion coating has avoided adding hydrophobic material to cement hydration hardening process and polymer composition. The adverse effect in the film process, and effectively solve the compatibility problem of hydrophobic agent with emulsion and cement

Method used

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  • Super-hydrophobic microcapsule polymer cement-based anticorrosive coating as well as preparation method and application thereof
  • Super-hydrophobic microcapsule polymer cement-based anticorrosive coating as well as preparation method and application thereof
  • Super-hydrophobic microcapsule polymer cement-based anticorrosive coating as well as preparation method and application thereof

Examples

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no. 1 example

[0065] A preparation of superhydrophobic microcapsule polymer cement-based anticorrosion coating, comprising the following methods:

[0066] 1. Preparation of hydrophobically modified graphene oxide:

[0067] 1.1 Add 5 parts by weight of graphene oxide into 150ml of absolute ethanol, and then ultrasonically disperse for 2 hours to obtain a graphene oxide dispersion.

[0068] 1.2 Add 7 parts by weight of polyperfluoroalkylsiloxane to the graphene oxide dispersion, adjust the reaction temperature at 65°C for 24 hours, and vigorously stir at a rate of 8000r / min during the reaction. After the reaction was completed, the reaction solution was vacuum filtered, the solid product was washed three times, and then vacuum-dried at 50° C. for 12 hours, and then ground to obtain hydrophobically modified graphene oxide for future use.

[0069] 2. Preparation of water-based microcapsule emulsion:

[0070] 2.1 Mix 23 parts by weight of deionized water and 1.6 parts by weight of polyvinyl al...

no. 2 example

[0078] A preparation of superhydrophobic microcapsule polymer cement-based anticorrosion coating, comprising the following methods:

[0079] 1. Preparation of hydrophobically modified graphene oxide:

[0080] 1.1 Add 4.5 parts by weight of graphene oxide into 160ml of absolute ethanol, and then ultrasonically disperse for 1 hour to obtain a graphene oxide dispersion.

[0081] 1.2 Add 7.5 parts by weight of tridecafluorooctyltriethoxysilane to the graphene oxide dispersion, adjust the reaction temperature at 60°C for 24 hours, and vigorously stir at a rate of 6000r / min during the reaction. After the reaction was completed, the reaction solution was subjected to vacuum filtration, the solid product was washed three times, and then vacuum-dried at 60° C. for 8 hours, and then ground to obtain hydrophobically modified graphene oxide for future use.

[0082] 2. Preparation of water-based microcapsule emulsion:

[0083] 2.1 Mix 20 parts by weight of deionized water and 1.3 parts by ...

no. 3 example

[0091] A preparation of superhydrophobic microcapsule polymer cement-based anticorrosion coating, comprising the following methods:

[0092] 1. Preparation of hydrophobically modified graphene oxide:

[0093] 1.1 Add 3.5 parts by weight of graphene oxide into 150ml of absolute ethanol, and then ultrasonically disperse for 1 hour to obtain a graphene oxide dispersion.

[0094] 1.2 Add 4.5 parts by weight of tridecafluorooctyltrimethoxysilane to the graphene oxide dispersion, adjust the reaction temperature at 60°C for 20 hours, and vigorously stir at a rate of 5000 r / min during the reaction. After the reaction was completed, the reaction solution was vacuum filtered, the solid product was washed twice, and then vacuum-dried at 50° C. for 8.5 hours, and ground to obtain hydrophobically modified graphene oxide for future use.

[0095] 2. Preparation of water-based microcapsule emulsion:

[0096] 2.1 Mix 30 parts by weight of deionized water and 2 parts by weight of polyvinyl al...

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Abstract

The invention relates to the field of cement anticorrosive coatings, in particular to a super-hydrophobic microcapsule polymer cement-based anticorrosive coating as well as a preparation method and application thereof. The coating is prepared from the following raw materials in parts by weight: 65-85 parts of cement, 65-70 parts of quartz sand, 0.5-1.0 part of a reinforcing agent, 0.17-0.32 part of a retarder, 45-55 parts of emulsion, 15-18 parts of water, 1.1-1.8 parts of a coalescing agent, 0.47-1.4 parts of a light stabilizer, 0.2-0.6 part of a preservative, 0.05-0.3 part of hydrophobic modified graphene oxide and 6-8 parts of a water-based microcapsule emulsion, wherein the water-based microcapsule emulsion is of a core-shell structure formed by taking a hydrophobic material as a coreand SiO2 gel as a shell layer. The anticorrosive paint provided by the invention avoids adverse effects on a cement hydration hardening process and a polymer film forming process, and effectively solves the problem of compatibility between a hydrophobic agent and emulsion as well as between the hydrophobic agent and cement.

Description

technical field [0001] The invention relates to the field of cement anticorrosion coatings, in particular to a superhydrophobic microcapsule polymer cement-based anticorrosion coating and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Polymer cement waterproof coating is a two-component water-based waterproof coating that uses acrylate, ethylene-vinyl acetate and other polymer emulsions and cement as the main raw materials. After adding fillers and other additives, it is cured by water volatilization and cement hydration reaction to form a film. coating. This type of waterproof coating overcomes the shortcomings of traditional ino...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/06C04B20/02C04B24/42C04B14/02C04B111/27C04B111/20
CPCC04B20/023C04B20/1066C04B28/04C04B28/065C04B2111/00508C04B2111/2092C04B2111/27C04B14/024C04B14/28C04B14/06C04B14/48C04B24/06C04B24/2641C04B24/2623C04B24/2682C04B2103/0068C04B2103/67C04B2103/69C04B24/129C04B24/42C04B16/0633C04B22/0013C04B24/008C04B24/00C04B14/042C04B14/386C04B24/12
Inventor 赵丕琪刘乐乐芦令超王晓伟侯鹏坤张丽娜程新
Owner UNIV OF JINAN
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