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

A long-lasting superhydrophobic wear-resistant ceramic coating

A wear-resistant ceramic and super-hydrophobic technology, applied in coatings, ceramic products, devices for coating liquids on the surface, etc., can solve the problems of poor wear resistance, poor hydrophobic durability, etc. the effect of increasing the surface gas reserves

Active Publication Date: 2019-10-29
NORTHEAST GASOLINEEUM UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to use ceramic materials with excellent properties to prepare coatings with long-term wear resistance and superhydrophobic durability, solve the problems of poor hydrophobic durability and poor wear resistance existing on superhydrophobic surfaces, and overcome the problems of ceramic coatings at the same time. Hydrophilic and brittle defects of the layer itself

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
  • A long-lasting superhydrophobic wear-resistant ceramic coating
  • A long-lasting superhydrophobic wear-resistant ceramic coating
  • A long-lasting superhydrophobic wear-resistant ceramic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Ceramic coating preparation

[0039] (1) Metal substrate surface pretreatment:

[0040] Use sand blasting technology to derust the surface of the steel plate, put it into 80% ethanol solution for ultrasonic cleaning, remove the surface grease, dust and other impurities, take it out and dry it naturally, and keep it for later use;

[0041] (2) Preparation of bottom layer and surface emulsion:

[0042] Evenly disperse 2 parts of dopamine and 5 parts of carbon nanotubes in 100 parts of water and magnetically stir for 60 minutes, add 40 parts of alumina ceramic emulsion to the above mixed solution under ultrasonic conditions, and obtain a uniform bottom emulsion after 60 minutes of ultrasonic dispersion . Electron microscope comparative analysis was carried out before and after the hydration of the ceramic particles in the bottom emulsion, and the results are shown in the attached Figure 1a and attached Figure 1b . Add 30 parts of polytetrafluoroethylene (PTFE) emu...

Embodiment 2

[0057] 1. Ceramic coating preparation

[0058] (1) Metal substrate surface pretreatment:

[0059] Use sandblasting technology and chemical etching to derust the surface of the steel plate, put it into 80% ethanol solution for ultrasonic cleaning, remove the surface grease, dust and other impurities, take it out and dry it naturally, and keep it for later use;

[0060] (2) Preparation of bottom layer and surface emulsion:

[0061] 3 parts of KH570, 5 parts of titanium nanowires and 5 parts of zinc oxide nanowires were uniformly dispersed in 80 parts of water solvent and magnetically stirred for 60 minutes, and 20 parts of alumina ceramic emulsion and 10 parts of nanometer yttrium oxide were added to the In the above mixed solution, a uniform bottom emulsion was obtained after 60 minutes of ultrasonic dispersion. Add 40 parts of polyvinylidene fluoride (PVDF) emulsion to 60 parts of water for magnetic stirring, the operating temperature is about 25°C at room temperature, and t...

Embodiment 3

[0074] 1. Ceramic coating preparation

[0075] (1) Metal substrate surface pretreatment:

[0076] Use 240-mesh sandpaper steel plate surface for derusting treatment, put it into 80% ethanol solution for ultrasonic cleaning, remove surface grease, dust and other impurities, take it out and dry it naturally, and keep it for later use;

[0077] (2) Preparation of bottom layer and surface emulsion:

[0078] 3 parts of KH560 and 9 parts of carbon nanofibers were uniformly dispersed in 50 parts of water solvent and magnetically stirred for 60 minutes, and 20 parts of alumina ceramic emulsion and 20 parts of nano-zirconia dispersion were added to the above mixed solution under ultrasonic conditions, After 60 minutes of ultrasonic dispersion, a uniform bottom emulsion was obtained. Add 20 parts of perfluoroethylene propylene copolymer (FEP) emulsion into water and carry out magnetic stirring. The operating temperature is about 25°C at room temperature, and the stirring time is 3 hou...

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

PropertyMeasurementUnit
bending strengthaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a long-acting super-hydrophobic and wear-resistant ceramic coating, which solves the problems of poor durability of the super-hydrophobic ceramic coating and the like. Specifically, the ceramic emulsion, nanofiber filler, water and surfactant are made into the bottom emulsion, the low surface energy polymer emulsion is the surface emulsion, and the bottom emulsion is quickly sprayed layer by layer under high temperature conditions. At this time, water is used as the pore-forming The agent evaporates rapidly, thus constructing a uniform pore structure in the bottom layer, providing a structural support with better mechanical strength for the preparation of durable superhydrophobic coatings; while the surface emulsion is injected into the pore structure after high-pressure spraying, which greatly improves the low surface energy. The adhesion between the material and the substrate material; and high-temperature calcination causes the low surface energy polymer to fibrillate, and a fiber network structure is constructed on the surface of the ceramic coating, which improves the superhydrophobicity of the coating and improves the ceramic coating. The brittleness of the coating enhances the wear resistance of the coating.

Description

technical field [0001] The invention relates to a superhydrophobic ceramic coating. Background technique [0002] In recent years, superhydrophobic surfaces (the contact angle to water is greater than 150° and the rolling angle is less than 10°) have attracted widespread attention due to their good properties such as anti-corrosion, drag reduction, self-cleaning, and anti-icing. Through the study of super-hydrophobic surfaces in nature, it is found that the super-hydrophobic properties of the surface can be realized by modifying the surface with low surface energy substances with multi-level rough structure. [0003] Although many superhydrophobic surfaces have been prepared by many methods, the application of superhydrophobic surfaces in actual life and production is greatly limited due to the defects of poor hydrophobic durability and poor wear resistance of coatings. [0004] Studies have shown that there are two main reasons for the poor hydrophobic durability and poor ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/14B05D5/00B05D7/00C04B38/02C04B35/10C04B35/622
CPCB05D5/00B05D7/14B05D7/546B05D2601/20B05D2601/28C04B35/10C04B35/62222C04B38/02C04B2235/3225C04B2235/3244C04B2235/3284C04B2235/404C04B2235/422C04B2235/5248C04B2235/5288
Inventor 汪怀远刘战剑张曦光王池嘉吕重江朱艳吉
Owner NORTHEAST GASOLINEEUM 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