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Water-based anticorrosive coating containing nanocellulose/reduced graphene oxide composite material, and preparation method thereof

A technology of nano-cellulose and anti-corrosion coatings, applied in the direction of cellulose coatings, anti-corrosion coatings, polyurea/polyurethane coatings, etc., can solve the problems of organic solvent-based coatings and difficult anti-corrosion performance, and achieve low cost, good anti-corrosion performance, Effect of improving dispersion and stability

Inactive Publication Date: 2019-12-17
SHANDONG OBO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the current commercially available water-based anti-corrosion coatings are difficult to compete with organic solvent-based coatings in terms of anti-corrosion performance.

Method used

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  • Water-based anticorrosive coating containing nanocellulose/reduced graphene oxide composite material, and preparation method thereof
  • Water-based anticorrosive coating containing nanocellulose/reduced graphene oxide composite material, and preparation method thereof
  • Water-based anticorrosive coating containing nanocellulose/reduced graphene oxide composite material, and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0088] The invention provides a kind of preparation method of water-based anticorrosion paint, comprises the following steps:

[0089] A) After mixing the reduced graphene oxide, nanocellulose and water for the first time, the reduced graphene oxide / nanometer cellulose aqueous dispersion is obtained;

[0090] B) After mixing the reduced graphene oxide / nanocellulose aqueous dispersion obtained in the above steps, the aqueous resin and the filler, a mixture is obtained;

[0091] C) After mixing the mixture obtained in the above steps and the auxiliary agent again, a water-based anticorrosion coating is obtained.

[0092] The present invention can correspond to the selection, composition and ratio of the raw materials required in the above preparation process, as well as the corresponding optimization principles, and the selection, composition and ratio of the corresponding raw materials in the aforementioned water-based anticorrosion coatings, as well as the corresponding optimi...

Embodiment 1

[0123] The nanocellulose / reduced graphene oxide water-based anticorrosion coating of the present embodiment includes two components A and B, and the mass ratio of the A component and the B component is 5:1, wherein the formula ratio of each component, see Table 1, Table 1 is the nanocellulose / reduced graphene oxide water-based anti-corrosion coating formulation provided by the embodiment of the present invention.

[0124] Table 1

[0125]

[0126] Concrete preparation steps are as follows:

[0127] (1) Add nanocellulose and reduced graphene oxide into deionized water, ultrasonically disperse in a 200W ultrasonic cleaner for 3 hours to obtain reduced graphene oxide / nanocellulose aqueous dispersion, add filler and water-based resin to the above dispersion system , placed in a stirring tank to stir and mix evenly, the rotation speed is 2500r / min, the stirring time is 60min, and the temperature is room temperature.

[0128] see figure 1 , figure 1 The transmission electron ...

Embodiment 2

[0143] The nanocellulose / reduced graphene oxide water-based anticorrosion coating of the present embodiment includes two components A and B, and the mass ratio of the A component and the B component is 5:1, wherein the formula ratio of each component, see Table 1, Table 1 is the nanocellulose / reduced graphene oxide water-based anti-corrosion coating formulation provided by the embodiment of the present invention.

[0144] Concrete preparation steps are as follows:

[0145] (1) Add nanocellulose and reduced graphene oxide into deionized water, ultrasonically disperse in a 200W ultrasonic cleaner for 4 hours to obtain reduced graphene oxide / nanocellulose aqueous dispersion, add filler and water-based resin to the above dispersion system , placed in a stirring tank to stir and mix evenly, the rotating speed is 2500r / min, the stirring time is 60min, and the temperature is room temperature;

[0146] (2) Add dispersant, defoamer, and leveling agent to the above mixing system in seq...

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Abstract

The invention provides a water-based anticorrosive coating. The water-based anticorrosive coating contains a water-based resin and a nanocellulose / reduced graphene oxide composite material. Nanocellulose and reduced graphene oxide are specially selected and are compounded to form the nanocellulose / reduced graphene oxide composite material, and the nanocellulose / reduced graphene oxide composite material cooperates with the water-based resin coating, so the super-large specific surface area and good comprehensive properties such as light, electricity, heat and chemical stability of the reduced graphene oxide are utilized; and the addition of the nanocellulose improves the dispersity and the stability of the reduced graphene oxide, so the reduced graphene oxide is well and stably dispersed inthe water-based coating matrix, thereby the anticorrosion effect, mechanical properties and the heat stability of the water-based coating are improved, and the water-based anticorrosion material hasthe advantages of excellent comprehensive effects, long service life and broad application prospect, and is a nanocellulose / reduced graphene oxide water-based anticorrosive coating having the characteristics of greenness, environmental protection, good anticorrosive property and excellent mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of water-based anti-corrosion coatings, and relates to a water-based anti-corrosion coating and a preparation method thereof, in particular to a water-based anti-corrosion coating containing nanocellulose / reduced graphene oxide composite material and a preparation method thereof. Background technique [0002] Graphene is a new material with a single-layer sheet structure composed of carbon atoms. As a two-dimensional crystal composed of carbon atoms with only one atomic thickness, it is currently the thinnest in the application field. material and the strongest material, the breaking strength is 200 times higher than that of steel, and it has good elasticity, and the stretching range can reach 20% of its own size; at the same time, graphene also has excellent electrical conductivity, which can reduce the inner In addition, graphene is almost completely transparent, absorbing only 2.3% of light, and is so den...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D167/08C09D101/02C09D5/08C09D7/61C09D7/65C09D7/20
CPCC08L2201/08C09D5/08C09D167/08C09D175/04C09D7/20C09D7/61C09D7/65C08L1/02C08K13/02C08K3/042
Inventor 王明华赵永彬马立军殷玉强
Owner SHANDONG OBO NEW MATERIAL CO LTD
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