CN114836760A - Preparation method of rust remover containing graphene quantum dot corrosion inhibitor - Google Patents
Preparation method of rust remover containing graphene quantum dot corrosion inhibitor Download PDFInfo
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- CN114836760A CN114836760A CN202210527390.2A CN202210527390A CN114836760A CN 114836760 A CN114836760 A CN 114836760A CN 202210527390 A CN202210527390 A CN 202210527390A CN 114836760 A CN114836760 A CN 114836760A
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- corrosion inhibitor
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- 230000007797 corrosion Effects 0.000 title claims abstract description 53
- 238000005260 corrosion Methods 0.000 title claims abstract description 53
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000003112 inhibitor Substances 0.000 title claims abstract description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 43
- 239000002096 quantum dot Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 4
- 238000005119 centrifugation Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 229920002472 Starch Polymers 0.000 claims description 6
- 239000008107 starch Substances 0.000 claims description 6
- 235000019698 starch Nutrition 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229930091371 Fructose Natural products 0.000 claims description 2
- 239000005715 Fructose Substances 0.000 claims description 2
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 2
- 229930006000 Sucrose Natural products 0.000 claims description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 2
- 239000008103 glucose Substances 0.000 claims description 2
- 239000005720 sucrose Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 7
- 239000010962 carbon steel Substances 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000000047 product Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000000089 atomic force micrograph Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
Abstract
The invention discloses a preparation method of a rust remover containing a graphene quantum dot corrosion inhibitor, which is characterized by comprising two parts, namely the corrosion inhibitor and an acid solution, wherein the corrosion inhibitor is a graphene quantum dot, and the acid solution is a hydrochloric acid or sulfamic acid solution, and the preparation method comprises the following specific steps: using saccharides as raw materials of the graphene quantum dot corrosion inhibitor, using water as a solvent, heating for 2-5 hours at 170-220 ℃ by adopting a hydrothermal method to prepare an initial product, and carrying out processes such as centrifugation, filtration, drying and the like on the initial product to obtain solid graphene quantum dots; then preparing hydrochloric acid or sulfamic acid solution with the concentration of 5-30% as acid solution; and adding the prepared graphene quantum dot corrosion inhibitor into an acid solution, stirring and dissolving to obtain a uniform solution, namely the rust remover containing the graphene quantum dot corrosion inhibitor. The preparation method disclosed by the invention is simple to operate and low in cost, and does not damage a metal matrix while realizing efficient cleaning of metals such as carbon steel, copper and the like under the protection of the graphene quantum dot corrosion inhibitor.
Description
Technical Field
The invention relates to the field of scientific preparation and application of chemistry and materials, in particular to a preparation method of a rust remover containing a graphene quantum dot corrosion inhibitor.
Background
The rust remover is also called pickling solution, is widely applied in the fields of metal surface pretreatment, oil well acidification production increase and the like, and has huge market demand. However, rust removers inevitably corrode metal substrates when used to clean rust on metal surfaces. Therefore, it is indispensable to add a certain amount of corrosion inhibitor to the rust remover in order to protect the metal substrate from corrosion. Numerous studies have reported the preparation of rust inhibitors containing corrosion inhibitors.
The document CN113913838A discloses a polyimide rust remover, a preparation method thereof and a rust removing method for a rust piece, wherein the rust remover comprises the following components in parts by mass: 20-40 parts of polyimide rust remover, 3-8 parts of rust removing auxiliary agent, 5-10 parts of corrosion inhibitor, 1-5 parts of emulsifier, 1-5 parts of penetrant and 20-40 parts of water. The unique rust removal auxiliary agent, the penetrating agent and the emulsifier can increase the penetrating effect of the rust remover, accelerate the decomposition speed of the rust, realize rapid and efficient rust removal, can not react with a paint film on the surface of a component, and protect the component to the maximum extent. However, the corrosion inhibitor used in the above documents still has the disadvantages of high cost, poor degradability, low slow release efficiency and the like, and further use of the corrosion inhibitor is hindered. In recent years, graphene quantum dots have been proved to be a novel green corrosion inhibitor, and are primarily applied to the field of corrosion protection. However, no research report exists on a preparation method of the rust remover containing the graphene quantum dot corrosion inhibitor.
Disclosure of Invention
The invention aims to provide a preparation method of a rust remover containing a graphene quantum dot corrosion inhibitor, which has the advantages of low cost, high degradability, high slow release efficiency and good rust removing effect, aiming at the problems of high cost, poor degradability, low slow release efficiency and the like in the existing rust remover preparation method.
The technical scheme of the invention is as follows:
a preparation method of a rust remover containing a graphene quantum dot corrosion inhibitor comprises the following steps of:
the method comprises the following steps: using saccharides as raw materials of the graphene quantum dot corrosion inhibitor, using water as a solvent, heating for 2-5 hours at 170-220 ℃ by adopting a hydrothermal method to prepare an initial product, and carrying out processes such as centrifugation, filtration, drying and the like on the initial product to obtain solid graphene quantum dots; the prepared graphene quantum dots have a large pi conjugated structure, and are easily adsorbed on the surface of metal to form a protective film, so that the slow release efficiency is higher. Meanwhile, other byproducts are not generated in the process of preparing the graphene quantum dots, so that the purity is higher;
step two: preparing a hydrochloric acid or sulfamic acid solution with the concentration of 5-30% as an acid solution;
step three: and (3) adding the graphene quantum dot corrosion inhibitor prepared in the first step into the acid solution prepared in the second step, stirring and dissolving to obtain a uniform solution, namely the rust remover containing the graphene quantum dot corrosion inhibitor.
In the preparation method of the rust remover containing the graphene quantum dot corrosion inhibitor, in the first step, the saccharides comprise one or more of glucose, soluble starch, fructose and sucrose. These materials are low cost, non-toxic and readily available.
In the preparation method of the rust remover containing the graphene quantum dot corrosion inhibitor, the hydrothermal method in the first step is carried out in a hydrothermal reaction kettle with a polytetrafluoroethylene lining.
In the preparation method of the rust remover containing the graphene quantum dot corrosion inhibitor, the adding mass of the graphene quantum dot corrosion inhibitor in the third step is 0.01-0.3% of the mass of the acid solution prepared in the second step. The graphene quantum dot corrosion inhibitor has little addition, and the cost of the prepared rust remover is further reduced.
The invention has the beneficial effects that: (1) the rust remover has simple preparation process and low cost; (2) the used graphene quantum dot corrosion inhibitor has the advantages of strong degradability, environmental protection and the like; (3) the preparation method can realize large-scale preparation.
Drawings
FIG. 1 is a flow chart of the preparation of the present invention.
Fig. 2 is a Transmission Electron Microscope (TEM) image of the graphene quantum dots prepared in the example.
Fig. 3 is an Atomic Force Microscope (AFM) image of the graphene quantum dots prepared in the example.
In the figure: S1-S3 correspond to the first step to the third step of the method.
Detailed Description
The following is a specific embodiment of the present invention, and the technical solution of the present invention is further described with reference to the accompanying drawings. The hydrochloric acid and the soluble starch used in the examples were purchased from chemical reagents of the national pharmaceutical group, ltd, and were used as they were without purification for analytical grade. The water used was deionized water.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
A preparation method of a rust remover containing a graphene quantum dot corrosion inhibitor comprises the following steps of:
the method comprises the following steps: taking low-cost, nontoxic and easily-obtained soluble starch as a raw material of the graphene quantum dot corrosion inhibitor, weighing 0.5g of the soluble starch, dissolving the soluble starch in 100mL of deionized water, pouring the solution into a hydrothermal reaction kettle with a polytetrafluoroethylene lining, heating the solution at 200 ℃ for 3 hours by adopting a hydrothermal method to prepare an initial product, and carrying out processes such as centrifugation, filtration, drying and the like on the initial product to obtain the solid graphene quantum dot. The prepared graphene quantum dots have a large pi conjugated structure, and are easily adsorbed on the surface of metal to form a protective film, so that the slow release efficiency is higher. Meanwhile, other byproducts are not generated in the process of preparing the graphene quantum dots, so that the purity is higher;
step two: preparing a hydrochloric acid solution with the concentration of 12% as an acid solution;
step three: and (3) adding the graphene quantum dot corrosion inhibitor prepared in the step one into an acid solution, stirring and dissolving to obtain a uniform solution, namely the rust remover containing the graphene quantum dot corrosion inhibitor. The adding mass of the graphene quantum dot corrosion inhibitor is 0.03 percent of the mass of the acid solution.
And (3) performing TEM (figure 2) and AFM (figure 3) characterization on the graphene quantum dot corrosion inhibitor prepared in the first step. As shown in fig. 2, the product has a nearly circular black dot with an average particle size of about 7.8nm, while as shown in fig. 3, the product has an average thickness of 1.2nm (two-layer graphene thickness), thereby confirming that graphene quantum dots with a lateral dimension greater than a longitudinal height are generated.
In order to prove the corrosion inhibition effect of the graphene quantum dot corrosion inhibitor and the cleaning effect of the prepared rust remover, the prepared rust remover containing the graphene quantum dot corrosion inhibitor and the hydrochloric acid rust remover which does not contain the graphene quantum dots and has the same concentration (12%) are used for a Q235 carbon steel rust removal experiment (Q235 carbon steel blocks of 10mm by 3mm under the same rust condition are respectively soaked in the two rust removers for 10 min). The result shows that the hydrochloric acid rust remover with the same concentration (12%) does not contain the graphene quantum dot corrosion inhibitor, so that although rust can be removed, the rust remover can corrode a Q235 carbon steel substrate, and the surface roughness of the carbon steel substrate is larger; the prepared rust remover containing the graphene quantum dot corrosion inhibitor only removes rust on the surface of Q235 carbon steel, does not corrode a matrix, and has a flat surface of the carbon steel matrix. Therefore, the corrosion inhibition effect of the graphene quantum dot corrosion inhibitor and the cleaning effect of the prepared rust remover are proved.
Claims (4)
1. A preparation method of a rust remover containing a graphene quantum dot corrosion inhibitor is characterized in that the rust remover comprises two parts, namely the corrosion inhibitor and an acid solution, wherein the corrosion inhibitor is the graphene quantum dot, and the acid solution is a hydrochloric acid or sulfamic acid solution, and the preparation method specifically comprises the following steps:
the method comprises the following steps: using saccharides as raw materials of the graphene quantum dot corrosion inhibitor, using water as a solvent, heating for 2-5 hours at 170-220 ℃ by adopting a hydrothermal method to prepare an initial product, and carrying out centrifugation, filtration and drying processes on the initial product to obtain solid graphene quantum dots;
step two: preparing a hydrochloric acid or sulfamic acid solution with the concentration of 5-30% as an acid solution;
step three: and (3) adding the graphene quantum dot corrosion inhibitor prepared in the first step into the acid solution prepared in the second step, stirring and dissolving to obtain a uniform solution, namely the rust remover containing the graphene quantum dot corrosion inhibitor.
2. The preparation method of the rust remover containing the graphene quantum dot corrosion inhibitor as claimed in claim 1, wherein the sugar in the first step comprises one or more of glucose, soluble starch, fructose and sucrose.
3. The preparation method of the rust remover containing the graphene quantum dot corrosion inhibitor as claimed in claim 1, wherein the hydrothermal method in the first step is carried out in a hydrothermal reaction kettle with a polytetrafluoroethylene lining.
4. The preparation method of the rust remover containing the graphene quantum dot corrosion inhibitor according to claim 1, wherein the addition mass of the graphene quantum dot corrosion inhibitor in the third step is 0.01-0.3% of the mass of the acid solution prepared in the second step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210527390.2A CN114836760A (en) | 2022-05-16 | 2022-05-16 | Preparation method of rust remover containing graphene quantum dot corrosion inhibitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210527390.2A CN114836760A (en) | 2022-05-16 | 2022-05-16 | Preparation method of rust remover containing graphene quantum dot corrosion inhibitor |
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| Publication Number | Publication Date |
|---|---|
| CN114836760A true CN114836760A (en) | 2022-08-02 |
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|---|---|---|---|
| CN202210527390.2A Pending CN114836760A (en) | 2022-05-16 | 2022-05-16 | Preparation method of rust remover containing graphene quantum dot corrosion inhibitor |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101950A (en) * | 1993-10-18 | 1995-04-26 | 北京柯力动力化学防腐技术开发公司 | Detergent for steel, aluminium and copper materials |
| US20110266502A1 (en) * | 2009-01-08 | 2011-11-03 | Gomes Jose Antonio Da Cunha Ponciano | Use of fruit skin extracts as corrosion inhibitors and process for producing same |
| WO2016045045A1 (en) * | 2014-09-25 | 2016-03-31 | 深圳粤网节能技术服务有限公司 | Method for preparing graphene quantum dots |
| US20170260054A1 (en) * | 2014-12-02 | 2017-09-14 | Ningbo Zkjh New Material Co., Ltd. | Graphene dispersant and application thereof |
| US20170355902A1 (en) * | 2016-06-10 | 2017-12-14 | Ecolab Usa Inc. | Compositions and methods for corrosion inhibitor monitoring |
| CN109234744A (en) * | 2018-10-31 | 2019-01-18 | 曾凡强 | A kind of environment-friendly rust remover and preparation method thereof |
| CN110182790A (en) * | 2019-06-17 | 2019-08-30 | 三峡大学 | The method of glucan synthesizing graphite alkene quantum dot |
| AU2021106312A4 (en) * | 2021-08-21 | 2021-11-04 | Qingdao University Of Science And Technology | Preparation method and application of graphene quantum dots with uniform size |
| CN113913838A (en) * | 2021-10-12 | 2022-01-11 | 成都普利美特科技有限公司 | Polyimide rust remover, preparation method thereof and rust piece rust removing method |
-
2022
- 2022-05-16 CN CN202210527390.2A patent/CN114836760A/en active Pending
Patent Citations (9)
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|---|---|---|---|---|
| CN1101950A (en) * | 1993-10-18 | 1995-04-26 | 北京柯力动力化学防腐技术开发公司 | Detergent for steel, aluminium and copper materials |
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