Super-amphiphobic composite coating capable of being repeatedly bonded and recycled as well as preparation and application thereof

A composite coating and super-amphiphobic technology, applied in coatings, primers, etc., can solve substrate damage, the nano/micro roughness of the super-amphiphobic coating surface is easily damaged, and it is difficult to remove residues and adhesives and other issues, to achieve the effect of safety and high cost performance, excellent superhydrophobic and superoleophobic properties, and excellent anti-adhesion ability

Active Publication Date: 2020-12-25
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after long-term use or severe abrasion, the nano / micro roughness of the superamphiphobic coating surface is still easily damaged, and its residues and adhesives are very difficult to remove, and even cause damage to the substrate.

Method used

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  • Super-amphiphobic composite coating capable of being repeatedly bonded and recycled as well as preparation and application thereof
  • Super-amphiphobic composite coating capable of being repeatedly bonded and recycled as well as preparation and application thereof
  • Super-amphiphobic composite coating capable of being repeatedly bonded and recycled as well as preparation and application thereof

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Embodiment Construction

[0051] The technical solutions of the present invention will be further described below in conjunction with specific examples.

[0052] The invention provides a superamphiphobic composite coating, which comprises a viscous hydrogel primer layer and a superamphiphobic topcoat layer attached to the viscous hydrogel primer layer.

[0053] The preparation method of described super amphiphobic composite coating comprises the steps:

[0054] (1) Dissolving the hexamethylene diisocyanate trimer in anhydrous acetone to obtain a hexamethylene diisocyanate trimer solution. Ammonium persulfate (initiator, used in an amount of 1% of the total monomer mass) and acrylamide were added into deionized water to dissolve, and then hydroxyethyl methacrylate was dispersed into the acrylamide solution to obtain a monomer solution. Then mix the hexamethylene diisocyanate trimer solution with the monomer solution, add an accelerator (tetramethylethylenediamine, the dosage is 5% of the initiator dosa...

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Abstract

The invention discloses a super-amphiphobic composite coating capable of being repeatedly bonded and recycled as well as preparation and an application of the super-amphiphobic composite coating. Thesuper-amphiphobic composite coating comprises a viscous hydrogel primer layer and a super-amphiphobic finish paint layer attached to the viscous hydrogel primer layer. The super-amphiphobic nano-particles are innovatively introduced into the viscous hydrogel, the super-amphiphobic composite coating can be quickly adhered to different matrixes by utilizing the property that the viscous hydrogel hasstrong adhesive force after dehydration, and the super-amphiphobic composite coating has very strong adhesive force and also has excellent super-hydrophobic and super-oleophobic performance, self-cleaning performance and patterning performance; and repeated bonding and recycling can also be realized.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a re-adhesive and recyclable super-amphiphobic composite coating and its preparation and application. Background technique [0002] The super-amphiphobic surface is a surface with a contact angle of more than 150° for water and oily liquids, and a rolling angle of less than 10°, which shows strong repellency to both water and oily liquids. Unlike superhydrophobic surfaces that are only hydrophobic, superamphiphobic surfaces not only have important application value in industries involving oily liquids or organic pollutants such as the petroleum industry, but also in self-cleaning, antifouling, antibacterial, It has a wider range of applications in drag reduction, moisture resistance, corrosion resistance, and anti-adhesion. Therefore, the design and fabrication of superamphiphobic surfaces has received considerable attention in both academic and industrial fields. [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D7/61C09D7/65C09D133/26C08F220/56C08F220/20
CPCC09D4/00C09D183/08C09D7/61C09D7/65C09D133/26C09D5/002C08F220/56C08G77/24C08F220/20
Inventor 吴旭张振强于丹凤徐秀彬梁月燕彭子林
Owner GUANGZHOU UNIVERSITY
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