Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing ultra-hydrophobic membrane layer on surface of metal with chilli extract

A technology of pepper extract and metal surface, which is applied in the field of super-hydrophobic film to achieve the effect of simple and easy operation.

Active Publication Date: 2015-05-27
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But capsicum extract has not been reported on the superhydrophobic film layer preparation on the metal surface

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing ultra-hydrophobic membrane layer on surface of metal with chilli extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Clean the metal copper surface with ethanol and deionized water in sequence, and dry it with nitrogen gas for later use;

[0017] (2) Add 0.02mol / L ethanol solution of capsicum extract dropwise to the treated metal copper surface at 25°C, and then apply a 30V DC voltage between the copper and platinum electrodes to which the ethanol solution of capsicum extract is dripped (The copper sample is the anode, and the platinum electrode is the cathode). After 2 hours of treatment, a white film appeared on the copper surface. After drying with nitrogen, the film was in a super-hydrophobic state, and the surface contact angle was 153.7±3° (see figure 1 ).

[0018] Wherein, the extraction method of the capsicum extract is as follows: commercially available dried red peppers are used as raw materials, and the capsicum extract is obtained by conventional organic solvent extraction, and the capsicum extract contains substances with amide groups.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to ultra-hydrophobic membrane layers and particularly relates to a method for preparing the ultra-hydrophobic membrane layer on a surface of metals with a chilli extract. In the method, an alcohol solution of the chilli extract being 10<-3>-10<-1> mol / L in concentration is dropped onto the surface of a copper sample, and then one-step electrolysis is carried out to form a complex film layer on the surface of the copper sample. The method is simple in operation, is free of expensive devices, and enables agents being free of environmental danger. The ultra-hydrophobic membrane layer is expected to be applied in the fields of anti-corrosion, waterproof and self-cleaning of metals and the like.

Description

technical field [0001] The invention relates to a super-hydrophobic film layer, in particular to a method for preparing a super-hydrophobic film layer on a metal surface by using capsicum extract. Background technique [0002] Wetting performance is an important feature of solid surfaces. It is generally believed that the contact angle of water on a solid surface is greater than 150°, and the surface is in a superhydrophobic state. The surface of the lotus leaf in nature is a typical example of superhydrophobicity. On the surface of the lotus leaf, water droplets can roll freely, and when rolling, they can take away pollutants such as dust attached to the surface, so that the surface can be kept clean. The study found that the superhydrophobicity of the lotus leaf surface is caused by the hierarchical structure of the combination of microstructure and nanostructure on the surface and the existence of waxy substances on the surface. Practice has proved that the superhydroph...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C25D9/02
Inventor 王鹏张盾
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com