Method for constructing super-hydrophobic film on rusty bronze surface

A super-hydrophobic, bronze technology, applied in the field of constructing a super-hydrophobic film on the surface of rusted bronze, can solve problems such as inapplicability to the surface of cultural relics, and achieve the effects of high durability, anti-corrosion, self-cleaning performance, high stability, and simple and safe preparation process.

Inactive Publication Date: 2016-03-09
SHANGHAI MUSEUM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very few literatures or reports on the superhydrophobic anti-corrosion research on the surface of bronze cultural relics
The existing superhydrophobic film construction technology on the metal surface usually roughens the metal surface by chemical or physical methods, and then modifies the low surface energy substances. Since these methods will damage the surface of the substrate, similar processes are not suitable for cultural relics. On the surface, "not changing the original appearance of cultural relics" is the premise and basis for the implementation of cultural relics protection methods; at the same time, compared with the current research, the complex rust layer morphology and composition on the surface of bronzes is an important problem in the construction of super-hydrophobic surfaces. How to construct a super-hydrophobic film on a bronze surface with a complex rust layer, there is currently no relevant information and literature reports for reference

Method used

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  • Method for constructing super-hydrophobic film on rusty bronze surface
  • Method for constructing super-hydrophobic film on rusty bronze surface
  • Method for constructing super-hydrophobic film on rusty bronze surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Use a soft brush to gently brush the surface of the rusty bronze, and then repeatedly blow the surface with dry nitrogen to remove dust, particles and harmful powdery rust on the bronze surface;

[0027] The pretreated bronze was hung in an atmosphere box, 10.0% benzotriazole, 5.0% 1-phenyl-5-mercaptotetrazolium, 3.0% 2-mercaptobenzoxazole, 2.0% 2-mercaptobenzimidazole, the balance is a solvent ethanol composite gas phase corrosion inhibitor solution placed at the bottom of the atmosphere box, nitrogen gas is passed through the microporous diffuser for 120 minutes to vaporize; pre-film at 20-30 ° C for 72 hours , followed by nitrogen gas for 60 minutes to blow off the corrosion inhibitor and ethanol molecules attached to the surface;

[0028] 5.0% of tridecafluorooctyltriethoxysilane, 5.0% of heptadecafluorodecyltriethoxysilane, 2.0% of 4-methyl-tridecafluorodecyltriethoxysilane, the balance The fluorosilane solution that is ethanol solvent is placed at the bottom of t...

Embodiment 2

[0031] Use a soft brush to gently brush the surface of the rusty bronze, and then repeatedly blow the surface with dry nitrogen to remove dust, particles and harmful powdery rust on the bronze surface;

[0032] The pretreated bronze was hung in an atmosphere box, 2.0% benzotriazole, 1.0% 1-phenyl-5-mercaptotetrazolium, 1.0% 2-mercaptobenzoxazole, 1.0% 2-Mercaptobenzimidazole, the balance is solvent ethanol composite vapor phase corrosion inhibitor solution placed at the bottom of the atmosphere box, nitrogen gas is passed through the microporous diffuser for 40 minutes to vaporize; pre-film at 20-30°C for 48 hours , followed by nitrogen gas for 40 minutes to blow off the corrosion inhibitor and ethanol molecules attached to the surface;

[0033] 1.0% of tridecafluorooctyltriethoxysilane, 1.0% of heptadecafluorodecyltriethoxysilane, 1.0% of 4-methyl-tridecafluorodecyltriethoxysilane, the balance The fluorosilane solution that is ethanol solvent is placed at the bottom of the a...

Embodiment 3

[0036] Use a soft brush to gently brush the surface of the rusty bronze, and then repeatedly blow the surface with dry nitrogen to remove dust, particles and harmful powdery rust on the bronze surface;

[0037]Suspend the pretreated bronze in the atmosphere box, add 5.0% benzotriazole, 5.0% 1-phenyl-5-mercaptotetrazolium, 5.0% 2-mercaptobenzoxazole, 1.0% 2-Mercaptobenzimidazole, the balance is a solvent ethanol composite vapor phase corrosion inhibitor solution placed at the bottom of the atmosphere box, and nitrogen gas is passed through a microporous diffuser for 90 minutes to vaporize; pre-film at 20-30°C for 24 hours , followed by nitrogen gas for 40 minutes to blow off the corrosion inhibitor and ethanol molecules attached to the surface;

[0038] 1.0% of tridecafluorooctyltriethoxysilane, 5.0% of heptadecafluorodecyltriethoxysilane, 2.0% of 4-methyl-tridecafluorodecyltriethoxysilane, the balance The fluorosilane solution as an ethanol solvent is placed at the bottom of ...

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Abstract

The invention relates to a method for constructing a super-hydrophobic film on a rusty bronze surface. The method mainly aims at preventing further corrosion of bronze ware on the basis that the appearance of a cultural relic is not changed. The method includes the following steps: (1) pretreatment is carried out; (2) active groups on the bronze surface are increased through a volatile corrosion inhibitor; (3) silanization treatment is carried out; and (4) the step (2) and the step (3) are repeatedly executed, and the bronze surface with the super-hydrophobic performance is obtained. According to the method, the colorless and transparent super-hydrophobic film is successfully constructed on the rusty bronze surface through a gaseous phase layer-by-layer self-assembly technology, the manufacturing method is safe, and the surface of a base body is free of damage; by means of the method, the contact angle of the constructed super-hydrophobic surface ranges from 152 degrees to 158 degrees, the good super-hydrophobic performance is shown, and corrosion prevention and self cleaning of the surface of the bronze cultural relic can be achieved; and the super-hydrophobic surface manufactured with the method has the extremely-high stability and durability and is soaked in a high corrosive solution for 90 days, and the good antiseptic property is still shown.

Description

technical field [0001] The invention relates to a method for super-hydrophobic treatment of metal surfaces, in particular to a method for constructing a super-hydrophobic film on the surface of rusty bronze. Background technique [0002] The Bronze Age was the first era in which humans utilized metals, and archaeologically marked an important stage in the development of human culture. Bronze ware has extremely high historical value, artistic value and scientific value. However, due to the fact that the bronze material itself is prone to corrosion in humid air, and the ancient bronzes have experienced thousands of years of long years, and the environment they are in is complex and diverse, these precious cultural relics have suffered irreversible damage. Therefore, establishing an effective protection method is a demand and a common problem faced by the protection of precious bronze cultural relics in the museum. [0003] In recent years, the construction of superhydrophobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/02
CPCC23F11/02
Inventor 闫莹周浩伍思敏林颖吴雪威林小小郝玉吴来明蔡兰坤
Owner SHANGHAI MUSEUM
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