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Corrosion inhibitor microcapsules based on graphene rolls and preparation method of corrosion inhibitor microcapsules

A technology of graphene rolls and microcapsules, which is applied in the field of graphene, can solve the problems of difficulty in obtaining micronanocapsules, inability to be coated with organic drugs, and inconvenient promotion and application, and achieve the effects of mild conditions, complete structure, and convenient operation

Inactive Publication Date: 2017-06-30
QINGDAO AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the graphene rolls obtained by this method will introduce a large amount of alkaline impurities in the drug coating, which requires further washing treatment, and it is difficult to further load the drug, and it is almost impossible to further coat and load organic drugs. Difficult to achieve the purpose of obtaining micro-nanocapsules
At the same time, complex operation steps will lead to increased cost and reduced efficiency, making it difficult to popularize and apply

Method used

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  • Corrosion inhibitor microcapsules based on graphene rolls and preparation method of corrosion inhibitor microcapsules
  • Corrosion inhibitor microcapsules based on graphene rolls and preparation method of corrosion inhibitor microcapsules
  • Corrosion inhibitor microcapsules based on graphene rolls and preparation method of corrosion inhibitor microcapsules

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Embodiment 1

[0031] A preparation method of graphene roll microcapsules coated with benzotriazole, the method is to mix and disperse the supersaturated solution of benzotriazole solution with graphene oxide, and make the graphene into rolls by hydrothermal reaction and Coating the benzotriazole therein specifically includes the following steps:

[0032] (1) Dissolve 900 mg of benzotriazole in 45 mL of distilled water and stir for 30 minutes;

[0033] (2) Weigh 14 mg of graphene oxide, add it to the solution obtained in step (1), stir for 1 h, and then sonicate for 2 h to prepare a mixed dispersion;

[0034] (3) The mixed dispersion obtained in step (2) was transferred to a 60 mL airtight hydrothermal reaction kettle, and hydrothermally reacted at 120 °C for 8 h;

[0035] (4) After the hydrothermal reaction, cool down to room temperature naturally, centrifuge the obtained suspension at 8000 r / min for 5 min, discard the supernatant, remove the precipitate from the lower layer, and vacuum-dr...

Embodiment 2

[0041] A preparation method of graphene roll microcapsules coated with benzotriazole, the method is to mix and disperse supersaturated benzotriazole solution with graphene oxide, make graphene into rolls by hydrothermal reaction and Benzotriazole coating wherein specifically comprises the following steps:

[0042] (1) Weigh 1000 mg of benzotriazole, disperse in 45 mL of distilled water, and stir for 30 min;

[0043] (2) Weigh 14 mg of graphene oxide, add it to the solution obtained in step (1), stir for 1 hour, and then sonicate for 2 hours to prepare a mixed dispersion;

[0044] (3) Transfer the mixed dispersion obtained in step (2) to a 60 mL airtight reaction kettle, and conduct a hydrothermal reaction at 180 °C for 10 h;

[0045] (4) After the hydrothermal reaction, the hydrothermal kettle was naturally cooled to room temperature, and the obtained suspension was centrifuged at 8000 r / min for 5 minutes to separate, the supernatant was discarded, and the lower precipitate w...

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Abstract

The invention discloses corrosion inhibitor microcapsules based on graphene rolls. The microcapsules adopt graphene as a capsule wall material and adopt an organic corrosion inhibitor as a core material. The invention further discloses a preparation method of the microcapsules. After a water solution of the organic corrosion inhibitor is blended with graphene oxide, the mixture is subjected to hydrothermal treatment at 80-200 DEG C for 8-24 h, the corrosion inhibitor is coated with the microcapsules while graphene is rolled under the hydrothermal condition, the core material coating quality is high, and the slow release characteristic of the corrosion inhibitor is good. The method adopts a simple coating process, is convenient to operate and low in preparation cost, and does not need additional aids.

Description

technical field [0001] The invention relates to the technical field of graphene, in particular to a graphene roll-based corrosion inhibitor microcapsule and a preparation method thereof. Background technique [0002] Graphene is a new material with a sheet structure composed of a single layer of carbon atoms. It is made of carbon atoms with sp 2 A planar film with a hexagonal honeycomb lattice structure composed of hybrid orbitals, a flexible two-dimensional material with a thickness of only one carbon atom. Graphene oxide is very easy to agglomerate, so it is possible to use its flexibility to make graphene self-curling and wrapping to form a film-like shell. Because graphene is easy to curl, it can be used to prepare rolled nanocapsules to wrap other substances. [0003] Compared with the commonly used nano-container or micro-nanocapsule materials, graphene is a new type of carbon material with non-closed edges, high specific surface area, non-toxic and harmless, and st...

Claims

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Application Information

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IPC IPC(8): C01B32/192C01B32/194C09D7/12C01B32/18
CPCC01P2002/72C01P2002/85C01P2004/04C09D7/70
Inventor 宋祖伟任俊锋钱备
Owner QINGDAO AGRI UNIV
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