A kind of superhydrophobic microcapsule polymer cement-based anticorrosion coating and its preparation method and application

An anti-corrosion coating and microcapsule technology is applied in the field of cement anti-corrosion coatings to achieve the effects of improving waterproof and impermeability, preventing infiltration, and improving waterproof and impermeability.

Active Publication Date: 2021-11-05
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A kind of superhydrophobic microcapsule polymer cement-based anticorrosion coating and its preparation method and application
  • A kind of superhydrophobic microcapsule polymer cement-based anticorrosion coating and its preparation method and application
  • A kind of superhydrophobic microcapsule polymer cement-based anticorrosion coating and its preparation method and application

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 anticorrosion coatings, in particular to a superhydrophobic microcapsule polymer cement-based anticorrosion coating and its preparation method and application. In parts by weight, the raw materials of the coating include the following components: 65-85 parts of cement, 65-70 parts of quartz sand, 0.5-1.0 parts of reinforcing agent, 0.17-0.32 parts of retarder, 45-55 parts of emulsion, 15 parts ‑18 parts of water, 1.1‑1.8 parts of film-forming aids, 0.47‑1.4 parts of light stabilizers, 0.2‑0.6 parts of preservatives, 0.05‑0.3 parts of hydrophobically modified graphene oxide, 6‑8 parts of water-based microcapsule emulsion, and The aqueous microcapsule emulsion is based on a hydrophobic material as the core, with SiO 2 The gel is a core-shell structure formed by shell layers. The anti-corrosion coating of the invention avoids adverse effects on the cement hydration hardening process and the polymer film-forming process, and effectively solves the compatibility problem of the water-repellent agent, the emulsion and the 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 Patents(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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