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

Supramolecular polymer, self-repairing oleophobic coating as well as preparation method and application of self-repairing oleophobic coating

A supramolecular polymer and self-healing technology, which can be applied in coatings, polyurea/polyurethane coatings, biocide-containing paints, etc., can solve problems such as loss of function, achieve strong adhesion, good application prospects, and simple synthesis process Effect

Pending Publication Date: 2021-01-12
CITY UNIVERSITY OF HONG KONG
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this chemically "self-healing" oleophobic coating tends to fail when the fluorinated molecules are depleted or when severe physical damage occurs.

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
  • Supramolecular polymer, self-repairing oleophobic coating as well as preparation method and application of self-repairing oleophobic coating
  • Supramolecular polymer, self-repairing oleophobic coating as well as preparation method and application of self-repairing oleophobic coating
  • Supramolecular polymer, self-repairing oleophobic coating as well as preparation method and application of self-repairing oleophobic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] In this example, an oleophobic coating with self-healing properties was prepared by designing a specific supramolecular polymer.

[0059] The preparation method of the oleophobic coating with self-healing properties comprises steps:

[0060] (1) The ligand compound PDMS-Cat is obtained by copolymerization of dopamine hydrochloride (DOPA), isophorone diisocyanate (IPDI) and amino-terminated polydimethylsiloxane (PDMS); wherein, the amino-terminated The relative molecular mass of PDMS is 870; Specifically, 3.792g DOPA, 23.3mL IPDI and 87g amino-terminated PDMS were dissolved in 140mL dimethylformamide, 700mL dichloromethane and 140mL dimethylformamide respectively to obtain each reaction Then the IPDI solution was added dropwise to the mixed solution of DOPA and amino-terminated PDMS for reaction; the copolymerization reaction was carried out under the protection of nitrogen, the stirring speed was 500 rpm, the temperature was room temperature, and the time was 3h;

[00...

Embodiment 2

[0070] In this example, an oleophobic coating with self-healing properties was prepared by designing a specific supramolecular polymer.

[0071] The preparation method of the oleophobic coating with self-healing properties comprises steps:

[0072] (1) The ligand compound PDMS-Cat is obtained by copolymerization of dopamine hydrochloride (DOPA), isophorone diisocyanate (IPDI) and amino-terminated polydimethylsiloxane (PDMS); wherein, the amino-terminated The relative molecular mass of PDMS is 3000; Specifically, 1.896g DOPA, 11.12mL IPDI and 150g amino-terminated PDMS were dissolved in 160mL dimethylformamide, 800mL dichloromethane and 160mL dimethylformamide respectively to obtain each reaction Then the IPDI solution was added dropwise to the mixed solution of DOPA and amino-terminated PDMS for reaction; the copolymerization reaction was carried out under the protection of nitrogen, the stirring speed was 600 rpm, the temperature was room temperature, and the time was 4h;

...

Embodiment 3

[0078] In this example, an oleophobic coating with self-healing properties was prepared by designing a specific supramolecular polymer.

[0079] The preparation method of the oleophobic coating with self-healing properties comprises steps:

[0080] (1) The ligand compound PDMS-Cat is obtained by copolymerization of dopamine hydrochloride (DOPA), isophorone diisocyanate (IPDI) and amino-terminated polydimethylsiloxane (PDMS); wherein, the amino-terminated The relative molecular mass of PDMS is 870; Specifically, 1.896g DOPA, 23.3mL IPDI and 87g amino-terminated PDMS were dissolved in 150mL dimethylformamide, 700mL dichloromethane and 150mL dimethylformamide respectively to obtain each reaction Then the IPDI solution was added dropwise to the mixed solution of DOPA and amino-terminated PDMS for reaction; the copolymerization reaction was carried out under nitrogen protection, the stirring speed was 700 rpm, the temperature was room temperature, and the time was 5h;

[0081] fi...

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
Concentrationaaaaaaaaaa
Concentrationaaaaaaaaaa
Concentrationaaaaaaaaaa
Login to View More

Abstract

The invention provides a supramolecular polymer, a self-repairing oleophobic coating and a preparation method and application thereof, the supramolecular polymer PDMS-Cat-M is a complex of a ligand compound PDMS-Cat and a metal ion M, and the supramolecular polymer is prepared bycomplexation reaction of the ligand compound PDMS-Cat obtained by copolymerization of dopamine hydrochloride, isophoronediisocyanate and amino-terminated polydimethylsiloxane and themetal ion M. The supramolecular polymer can be used for preparing the self-repairing oleophobic coating, and has good application prospects in the fields of self-cleaning, icing prevention, pollution resistance, chemical protection and the like, chemistry and biology.

Description

technical field [0001] The invention relates to a supramolecular polymer, a self-repairing oleophobic coating and its preparation method and application. Environmental, chemical and biological fields such as icing, anti-pollution and chemical protection all have good application prospects. Background technique [0002] Oleophobic coatings with protection against oil pollution have broad application prospects in life and industry, including anti-fouling, anti-icing, chemical protection and oil transportation, etc. [0003] The oleophobic coatings in the prior art generally achieve the purpose of oleophobicity by constructing micro-nano structures on the surface of materials to make them rough, and at the same time modifying a layer of fluoride with low surface energy to achieve the purpose of oleophobicity; or pouring inert lubricating oil on the porous substrate to form produced by the sliding interface. Although these oleophobic coatings exhibit good oil repellency, their...

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): C08G18/61C08G18/75C08G18/83C09D175/04C09D5/16
CPCC08G18/61C08G18/755C08G18/838C09D175/04C09D5/1662
Inventor 姚希易波
Owner CITY UNIVERSITY OF HONG KONG
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