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Water-based anticorrosive coating applied to deep sea environment as well as preparation method and application of water-based anticorrosive coating

A technology for anti-corrosion coatings and deep-sea environments, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problem of weakening the physical barrier effect of the sheet, and achieve the effect of improving physical shielding effect, improving mechanical properties, and fiber reinforcement

Active Publication Date: 2021-10-26
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But for titanium carbide nanosheets, the sheets are gathered together due to the strong van der Waals force, which greatly weakens the physical barrier effect of the sheets.

Method used

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  • Water-based anticorrosive coating applied to deep sea environment as well as preparation method and application of water-based anticorrosive coating
  • Water-based anticorrosive coating applied to deep sea environment as well as preparation method and application of water-based anticorrosive coating
  • Water-based anticorrosive coating applied to deep sea environment as well as preparation method and application of water-based anticorrosive coating

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Experimental program
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preparation example Construction

[0026] In some more specific embodiments, the preparation method of the titanium carbide nanosheet / nanocellulose composite includes: mixing titanium carbide nanosheets, nanocellulose and a solvent, and then undergoing ultrasonication, distillation, and freeze-drying to obtain The titanium carbide nanosheet / nanocellulose composite.

[0027] In some more specific embodiments, the water-based anti-corrosion coating includes: 80-90 wt% of component A and 10-20 wt% of component B.

[0028] Further, the distillation treatment method includes rotary evaporation treatment.

[0029] Further, the time of the rotary steaming treatment is 20-80 min, and the temperature is 20-80°C.

[0030] Further, the solvent includes any one or a combination of two or more of water, ethanol, and acetone, and is not limited thereto.

[0031] Further, the mass ratio of the titanium carbide nanosheets to the nanocellulose is 0.01-20:1. In some more specific embodiments, the titanium carbide nanosheets i...

Embodiment 1

[0066] (1) Cross-linking reaction of titanium carbide nanosheets and nanocellulose: titanium carbide nanosheets (Ti 3 C 2 ) and nanocellulose were added with distilled water for ultrasonic treatment, then rotary steamed at 50°C for 1 h, and then freeze-dried to obtain a titanium carbide nanosheet / nanocellulose composite; wherein the scanning electron microscope image of the titanium carbide nanosheet is as follows Figure 1a As shown, the scanning electron microscope image of the titanium carbide nanosheet / nanocellulose composite is as follows Figure 1b shown;

[0067] (2) Dispersion of titanium carbide nanosheets / nanocellulose composites: Add the titanium carbide nanosheets / nanocellulose composites obtained in step (1) into absolute ethanol and perform ultrasonic and magnetic stirring to obtain titanium carbide nanosheets. Sheet / nanocellulose composite dispersion;

[0068] (3) Preparation and coating of composite coating: Add PLR 609B water-based epoxy resin emulsion to t...

Embodiment 2

[0072] (1) Cross-linking reaction of titanium carbide nanosheets and nanocellulose: titanium carbide nanosheets (Ti 3 C 2 ) and nanocellulose were added with distilled water for ultrasonic treatment, then rotary steamed at 50° C. for 1 h, and then freeze-dried to obtain a titanium carbide nanosheet / nanocellulose composite;

[0073] (2) Dispersion of titanium carbide nanosheets / nanocellulose composites: Add the titanium carbide nanosheets / nanocellulose composites obtained in step (1) into absolute ethanol and perform ultrasonic and magnetic stirring to obtain titanium carbide nanosheets. Sheet / nanocellulose composite dispersion;

[0074] (3) Preparation and coating of composite coating: AB-EP-20 water-based epoxy resin emulsion is added to the titanium carbide nanosheet / nanocellulose composite dispersion obtained in step (2), and mixed by magnetic stirring For a uniform composite emulsion, the excess solvent is removed by vacuum treatment, and then AB-HZ water-based curing ag...

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Abstract

The invention discloses a water-based anticorrosive coating applied to a deep sea environment as well as a preparation method and application of the water-based anticorrosive coating. The water-based anticorrosive coating comprises a component A and a component B, wherein the component A comprises a titanium carbide nanosheet / nanocellulose compound, a water-based resin emulsion and a dispersing solvent; the component B comprises a water-based curing agent; and the titanium carbide nanosheet / nanocellulose compound is prepared by carrying out a cross-linking reaction on titanium carbide nanosheets and nanocellulose. The titanium carbide nanosheet / nanocellulose compound in the prepared water-based anticorrosive coating can be stably dispersed in the water-based resin emulsion, so micropore defects formed in the rapid curing process of the water-based resin can be effectively filled, and thus, the compactness and integrity of the coating are improved; and meanwhile, by adding the titanium carbide nanosheet / nanocellulose compound, the physical shielding effect, the mechanical property and the corrosion resistance of the coating can be improved, and the coating can be widely applied to a complex deep sea alternating pressure environment.

Description

technical field [0001] The invention belongs to the technical field of metal surface protection, and relates to a water-based anti-corrosion coating applied in deep sea environment and its preparation method and application, in particular to a water-based anti-corrosion coating modified by nano-cellulose / titanium carbide nanosheets applied in deep-sea environment And its preparation method and application. Background technique [0002] The dispersion and compatibility of two-dimensional nanofillers in the polymer matrix directly determine the anti-corrosion performance of the polymer composite coating. Poor dispersion will lead to agglomeration of nanofillers, making it difficult to take advantage of the advantages of two-dimensional nanofillers; and poor compatibility will cause defects such as peeling, microcracks, and holes at the interface between the polymer matrix and fillers, which can accelerate the compounding process. The corrosion rate of the coating. Compared w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/61C09D7/65
CPCC09D163/00C09D5/08C09D7/61C09D7/65C09D7/70C08L1/02C08K7/00C08K3/14
Inventor 赵文杰吴杨敏王立平吴英豪强玉杰杜玉洁
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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