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

Composite functional coating and film, and preparation method and application thereof

A composite, coating technology, applied in coatings, anti-corrosion coatings, luminescent coatings, etc., can solve problems such as micro- and nano-scale gaps, and achieve the effect of improving performance, enhancing ion transmission and embedding effect, and enhancing adhesion.

Active Publication Date: 2020-06-19
FUDAN UNIV
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor has prepared a cuprous oxide nanowire film in the early stage. This film is flat macroscopically, but there are micro-nano-scale gaps microscopically.

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
  • Composite functional coating and film, and preparation method and application thereof
  • Composite functional coating and film, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Prepare 0.1 mol / L zinc sulfate (ZnSO 4 ) aqueous solution, 0.5 mol / liter sodium thiocyanate (NaSCN) aqueous solution, for later use.

[0047] For the preparation method of the cuprous oxide nanowire film, refer to the previous invention patents. [(1) Xu Wei, Xiao Xingxing, Xia Peng, A cuprous oxide nanowire porous film and its preparation method and application, invention patent application number: 2014100140030].

[0048] Copper films were deposited on flexible plastic substrates by vacuum thermal evaporation. The copper film is immersed in the thiocyanate aqueous solution to react, and after completion, it is taken out, washed, and then reacted with the sodium hydroxide aqueous solution to prepare the cuprous oxide nanowire film grown on the flexible plastic substrate, which is ready for use.

[0049] Mix 10 ml of 0.5 mol / L sodium thiocyanate solution with 20 ml of 0.1 mol / L zinc sulfate aqueous solution to form a "zinc ion-thiocyanate" aqueous solution system, and ...

Embodiment 2

[0055] The preparation method is similar to Example 1, but the precipitating agent uses sodium tungstate aqueous solution.

[0056] The composite product obtained by this method should be a composite of zinc tungstate nanomaterials and cuprous oxide nanowires, and there may also be other components or different aggregation forms. The SEM image shows that the aggregated morphology of the film is very special, which is connected into a honeycomb-like structure by ultra-thin nanosheets, such as figure 2 (A) and 2(B).

[0057] Further tests have demonstrated that this simple complex-precipitate film has even stronger photoluminescent properties. Under the excitation of green light (532 nm), it can emit higher brightness red light, such as figure 2 (C) shown.

[0058] Many kinds of composite functional coatings and functional films can be prepared by changing the experimental formula, including the amount of thiocyanate, using similar methods. Such films can be used as lumine...

Embodiment 3

[0061] Referring to the method in Example 1, replace the plastic substrate with other substrates, and then use a similar method to prepare zinc oxide and cuprous oxide nanowire composite films to obtain photoelectric functional films on different substrates.

[0062] This method also allows the preparation of marine antifouling coatings:

[0063] Copper film is deposited on the surface of steel and alloy components by chemical coating method (or electrochemical coating method), and then reacted with thiocyanate aqueous solution and sodium hydroxide aqueous solution in turn to prepare cuprous oxide nanowire film. Then adopt the method similar to Example 1, replace the "zinc ion-thiocyanate" aqueous solution with various "metal ion-thiocyanate" aqueous solutions, prepare cuprous oxide nanowire film and various "metal ion-thiocyanate" respectively Acid radical” aqueous solution composite solid-liquid interface system, and then treated with alkali solution, can prepare composite c...

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 belongs to the technical field of functional coatings and photoelectric functional films, and particularly relates to a composite functional coating and film and a preparation method andapplication thereof. A metal ion-thiocyanate aqueous solution is used as a filling solution and a doping solution, a composite solid-liquid interface system is constructed by the metal ion-thiocyanate aqueous solution and a solid film or a solid surface, and then in-situ filling or in-situ growth of a plurality of composite functional coatings and functional films is carried out. The composite coating and film are good in stability and wide in application range, and have wide applications including surface treatment, anti-corrosion treatment, weather-proof treatment, marine antifouling coatings, marine organism propagation prevention coatings and the like. Some composite functional films prepared by the invention can emit high-brightness red light under the excitation of green light, andcan be used as one of three primary color ingredients for constructing a white light emitting device (LED). The method provided by the invention is environment-friendly, and has good universality.

Description

technical field [0001] The invention belongs to the technical field of functional coatings and photoelectric functional films, and in particular relates to a class of composite functional coatings and films as well as their preparation methods and applications. Background technique [0002] There are many kinds of metal oxides, such as cuprous oxide and zinc oxide, which have been proved to be very valuable semiconductor materials. The combination of different kinds of metal oxides can further expand the functional properties and application fields of materials. But how to effectively compound is the key. Therefore, it is of great significance to develop a kind of universal composite route. [0003] The surface of metal and alloy components is easily oxidized and corroded in the natural environment. Surface treatment or protective coating of metals and alloys can improve the surface brightness of materials and components, enhance corrosion resistance, weather resistance a...

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): C09D1/00C09D5/16C09D5/22C09D5/14C09D5/08H01L31/0216H01L33/44
CPCC09D1/00C09D5/16C09D5/22C09D5/14C09D5/08H01L31/02161H01L31/02167H01L33/44
Inventor 徐伟徐琳绮
Owner FUDAN UNIV
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