Graphene/ferric oxide composite material-containing resin anticorrosive coating and preparation method thereof

A technology of ferric oxide and anti-corrosion coatings, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve problems such as affecting the effect of graphene, inability to stably disperse, and easy agglomeration of graphene, and solve uneven mixing. Easy to reunite, good tiling state, environment-friendly effect

Inactive Publication Date: 2017-09-15
SHANDONG OBO NEW MATERIAL CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] In recent years, coating products containing graphene-based materials have gradually been reported. However, in practical applications, graphene still has many problems and restrictive factors, such as graphene is very easy to agglomerate.
Due to the large specific surface area of ​​graphene and its derivatives, there is a strong van der Waals interaction between them, and the phenomenon of agglomeration and entanglement is obvious, so that it cannot be dispersed stably, and it is easy to reunite and difficult to open after dispersion.
Although a large number of studies have improved the dispersion effect of graphene by adding different types of dispersants or modification methods, the effect is poor in practical applications, and additional impurities will be introduced, which will have a negative impact on subsequent research. When hard materials are mixed, curling and wrinkles are prone to occur, which will directly affect the effect that graphene-based materials can achieve

Method used

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  • Graphene/ferric oxide composite material-containing resin anticorrosive coating and preparation method thereof
  • Graphene/ferric oxide composite material-containing resin anticorrosive coating and preparation method thereof
  • Graphene/ferric oxide composite material-containing resin anticorrosive coating and preparation method thereof

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preparation example Construction

[0081] The present invention also provides a kind of preparation method of resin anticorrosion coating, comprises the following steps:

[0082] A) after mixing graphene and ferric oxide for the first time, obtain the composite material of graphene and ferric oxide;

[0083] B) the composite material, resin and solvent of the graphene and ferric oxide obtained in the above steps are mixed, and after rotary evaporation again, the mixture is obtained;

[0084] C) After mixing the mixture obtained in the above steps and the auxiliary agent again, the resin anticorrosion coating is obtained.

[0085] The present invention can correspond to the selection and composition of the raw materials required in the above-mentioned preparation process, as well as the corresponding optimization principles, and the selection and composition of the corresponding raw materials in the aforementioned resin anticorrosion coatings, as well as the corresponding optimization principles, and will not re...

Embodiment 1

[0139] Graphene / Fe2O3 Composite

[0140] 1) Take a 0.5% graphene ethanol solution and stir it ultrasonically for 3 hours;

[0141] 2) Slowly add 250g of ferric oxide into the graphene solution obtained in step 1) under mechanical stirring according to the proportion of 0.1% graphene, and keep stirring for 30min;

[0142] 3) Add the mixed solution obtained in step 2) into the rotary evaporator;

[0143] 4) Control the degree of vacuum to 0.09Mpa, the temperature of the water bath to 60°C, and the rotation speed to 50RPM, and continue until the material is in a dry state to obtain ferric oxide particles with graphene evenly dispersed on the surface, that is, graphene-coated particles;

[0144] The graphene / ferric oxide composite material prepared by the above steps of the present invention is macroscopically analyzed, and the color of the ferric oxide after coating is obviously darker than that before coating.

[0145] The graphene / ferric oxide composite material that above-me...

Embodiment 2

[0164] 1) Take 50g of 0.1% graphene-modified ferric oxide and 50g of epoxy resin in 110g of xylene and n-butanol in a mixed solvent mixed at 3:1, and ultrasonically stir for 1h;

[0165] 2) Add the mixed solution obtained in step 1) into a rotary evaporator;

[0166] 3) Control the vacuum degree to 0.09Mpa, the temperature of the water bath is 60°C, and the rotation speed is 60RPM, and continue until the material is in a viscous state;

[0167] 4) Add the mixed material obtained in step 3) into a high-speed mixer, add 5.1g zinc oxide, 12.2g talcum powder, 2.8g organic clay, 1g defoamer, 0.6g MONORAL 3300, stir at high speed for 30min, and rotate at 1500r / min;

[0168] 5) Add the mixture obtained in step 4) into a three-roll machine and grind it to 25-55 μm to obtain component A.

[0169] B component

[0170] 6) Xylene and n-butanol are mixed into 30g of mixed solvent in a weight ratio of 3:1;

[0171] 7) Add 1 g of DMP-30 and 25 g of polyamide 200 to step 6) in sequence, ...

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Abstract

The invention provides a resin anticorrosive coating which is prepared from resin, a graphene and ferric oxide composite material, an auxiliary and a solvent. According to the resin anticorrosive coating, the adding mode of a graphene material is changed; firstly, graphene is compounded with ferric acid in the coating, thus obtaining the graphene and ferric oxide composite material, and then the treated graphene and ferric oxide composite material is combined with other components, thus obtaining the resin anticorrosive coating; the problem on dispersion of the graphene can be well solved, and perfect exertion of high performance of the resin anticorrosive coating is guaranteed; furthermore, no other auxiliaries are needed, so that introduction of impurities is reduced, and the shortcoming of non-uniform mixing of the graphene material in a coating system is overcome; the graphene can be uniformly dispersed; and in addition, the graphene and ferric oxide composite material can guarantee less folds of the graphene in a horizontal spreading state, os as to better exert the performance of the graphene.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and relates to a resin anti-corrosion coating and a preparation method thereof, in particular to a resin anti-corrosion coating containing a graphene / ferric 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 dense that even the smallest gas atoms (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/12
CPCC09D163/00C09D5/08C08L77/00C08K13/06C08K9/10C08K2003/2272C08K3/04
Inventor 李伟铭张在忠赵永彬刘海波
Owner SHANDONG OBO NEW MATERIAL CO LTD
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