Preparation method of phytic acid and KH550 modified biomass derived porous carbon nanosheets

A porous carbon and nanosheet technology, applied in the directions of carbon nanotubes, nanocarbons, chemical instruments and methods, etc., can solve problems such as corrosion of metal substrates and coating failures, simplify the use process, increase applicability, and relieve environmental pressure. Effect

Inactive Publication Date: 2020-02-14
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the traditional anti-corrosion coating requires strict surface treatment before coating on the one hand, and on the other hand, its working principle is "passive" protection. When micro-cracks appear in the coating, the corrosive medium can pass through the micro-cracks Diffusion to the metal surface, causing corrosion of the metal substrate, which in turn leads to coating failure

Method used

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  • Preparation method of phytic acid and KH550 modified biomass derived porous carbon nanosheets
  • Preparation method of phytic acid and KH550 modified biomass derived porous carbon nanosheets
  • Preparation method of phytic acid and KH550 modified biomass derived porous carbon nanosheets

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Embodiment 1

[0032] The preparation method of a phytic acid, KH550 modified biomass-derived porous carbon nanosheets involved in this embodiment comprises the following steps:

[0033] (1) 1g sycamore leaf and 150ml concentration are mixed homogeneously with 10% aqueous acetic acid solution, transferred to a polytetrafluoroethylene reactor and reacted at 150°C for 5 hours, then the product was cleaned with distilled water, centrifuged and dried to obtain water heat products;

[0034] (2) Mix 0.5g hydrothermal product with 1gZnCl 2 Mix evenly and react in a tube furnace at 700°C for 3 hours under the protection of nitrogen, then the product is washed with hydrochloric acid and distilled water in sequence, centrifuged, and dried to obtain biomass porous carbon nanosheets;

[0035] (3) Add 0.1g of biomass porous carbon nanosheets to 20ml 45wt% phytic acid aqueous solution and react under magnetic stirring for 12 hours, then wash with ethanol, centrifuge, and dry to obtain porous carbon nanos...

Embodiment 2

[0040] The preparation method of a phytic acid, KH550 modified biomass-derived porous carbon nanosheets involved in this embodiment comprises the following steps:

[0041] (1) Mix 1.5g lotus pod shells with 100ml 15% acetic acid aqueous solution, transfer to polytetrafluoroethylene reactor and react at 180°C for 5 hours, then the product is washed with distilled water, then centrifuged, dried to obtain hydrothermal product;

[0042] (2) Mix 0.5g hydrothermal product with 1.5gZnCl 2 Mix evenly and react at 700°C for 5 hours under the protection of nitrogen in a tube furnace, then wash the product with hydrochloric acid and distilled water in sequence, centrifuge, and dry to obtain biomass porous carbon nanosheets;

[0043] (3) Add 0.1g of biomass porous carbon nanosheets to 20ml of 60wt% phytic acid aqueous solution and react under magnetic stirring for 12 hours, then wash with ethanol, centrifuge, and dry to obtain porous carbon nanosheets loaded with phytic acid;

[0044] (...

Embodiment 3

[0046] The preparation method of a phytic acid, KH550 modified biomass-derived porous carbon nanosheets involved in this embodiment comprises the following steps:

[0047] (1) Mix 1g of corn stalks with 100ml of 5% acetic acid aqueous solution, transfer to a polytetrafluoroethylene reactor and react at 150°C for 3 hours, then wash the product with distilled water, then centrifuge and dry to obtain a hydrothermal product ;

[0048] (2) Mix 0.5g product with 1.5gZnCl 2 Mix evenly and react in a tube furnace at 700°C for 3 hours under the protection of nitrogen, then the product is washed with hydrochloric acid and distilled water in sequence, centrifuged, and dried to obtain biomass porous carbon nanosheets;

[0049] (3) Add 0.1g of biomass porous carbon nanosheets into 20ml 70wt% phytic acid aqueous solution and react under magnetic stirring for 12 hours, then wash with ethanol, centrifuge, and dry to obtain porous carbon nanosheets loaded with phytic acid;

[0050] (4) Add 0...

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Abstract

The invention belongs to the field of material synthesis and metal anticorrosive coating preparation, and particularly relates to a preparation method of phytic acid and KH550 modified biomass derivedporous carbon nanosheets, and application of the phytic acid and KH550 modified biomass derived porous carbon nanosheets to the aspect of intelligent anticorrosive coatings with in-situ surface treatment and self-repairing performance. Sheet composite carbon materials with surface treatment and chelating performance are prepared through a loading-grafting technology, the sheet composite carbon materials are added into water-borne epoxy resin to prepare the anticorrosive coatings with 'in-situ' surface treatment and self-repairing performance, the coating operation process is simplified, the service performance of the coatings is improved, waste biomass serves as a raw material and is turned into wealth, and recycling of resources is achieved.

Description

technical field [0001] The invention belongs to the field of material synthesis and preparation of metal anti-corrosion coatings, in particular to a preparation method of biomass-derived porous carbon nanosheets modified by phytic acid and KH550 and its application in intelligent anti-corrosion coatings with in-situ surface treatment and self-repairing properties. layer application. Background technique [0002] Research shows that in 2014, the cost of corrosion in my country reached 2.1 trillion, accounting for 3.34% of the gross national product. In order to improve the corrosion resistance of metal equipment and prolong its service life, the most common measure is to coat its surface with an anti-corrosion coating. At present, the traditional anti-corrosion coating requires strict surface treatment before coating on the one hand, and on the other hand, its working principle is "passive" protection. When micro-cracks appear in the coating, the corrosive medium can pass th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/16C01B32/168C09D163/00C09D5/08C09D7/62C09D7/63
CPCC08K2201/011C09D5/08C09D163/00C01B32/16C01B32/168C09D7/62C09D7/63C08K9/06C08K9/04C08K7/24C08K5/521
Inventor 高翔马洪芳
Owner QILU UNIV OF TECH
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