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

Cross-linkable fluorine-containing polymer, and its application in preparation of super-amphiphobic surfaces

A super-amphiphobic surface and polymer technology, which can be used in manufacturing tools, plant fibers, coatings, etc. problem, to achieve the effect of simple method and firm bonding

Inactive Publication Date: 2013-03-20
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
View PDF9 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to overcome the defects that the existing fluorine-containing polymers are difficult to form a real chemical bond with the substrate, the adhesion between the fluorine-containing polymer and the substrate surface is not strong, and a firm super-amphiphobic surface cannot be formed. The primary purpose of the invention is to provide a cross-linkable fluoropolymer

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
  • Cross-linkable fluorine-containing polymer, and its application in preparation of super-amphiphobic surfaces
  • Cross-linkable fluorine-containing polymer, and its application in preparation of super-amphiphobic surfaces
  • Cross-linkable fluorine-containing polymer, and its application in preparation of super-amphiphobic surfaces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Synthesis of crosslinkable fluoropolymers by ATRP method comprises the following steps:

[0056] Add 1.852g glycidyl methacrylate, 0.203g monomethoxyethylene glycol 2-bromoisobutyrate, 0.237g 4,4'-dinonyl-2,2'- Bipyridine and 3ml of anisole, the reaction system was stirred and dissolved, bubbled with argon for 30min, and then deoxygenated, then the reaction system was transferred to a 50ml round-bottomed flask containing 0.1124g of cuprous bromide, at 40°C The polymerization reaction was carried out for 2 hours, and the reaction product was precipitated in methanol, washed with methanol and then washed with n-hexane, and then vacuum-dried at room temperature for 24 hours to constant weight to obtain the product PGMA (polyglycidyl methacrylate).

[0057] In a 100ml round bottom flask, add 1.5g polyglycidyl methacrylate synthesized above, 1.852g trifluoroethyl methacrylate, 0.737g 4,4'-dinonyl-2,2'-bipyridine and 4ml of trifluorotoluene, stirring and dissolving the react...

Embodiment 2

[0061] Synthesis of crosslinkable fluoropolymers by anionic polymerization, comprising the following steps:

[0062] At -78°C (dry ice acetone bath), add 0.19 ml of 1,1-diphenylethylene to a three-necked flask containing 250 ml of anhydrous tetrahydrofuran, followed by adding 0.6 ml of 1.4 mol / L sec-butyllithium in hexyl alkane solution. After 25 minutes, 25.19 milliliters of propenyl glycidyl ether was added, and 1.24 milliliters of pentafluoroethyl methacrylate was added after the polymerization reaction was carried out for 1 hour. After the polymerization reaction continued for another 2 hours, 1.0 milliliters of anhydrous methanol was added to terminate the polymerization reaction. After the reaction system was warmed up to 23° C., it was concentrated by distillation to 100 ml, and then the polymer was precipitated in excess methanol, filtered and dried in a vacuum oven to obtain the polymer PGA-b-PFEMA. The molecular weight of the product is 31920.

[0063] The structur...

Embodiment 3

[0066] The synthesis of crosslinkable fluoropolymers by free radical method comprises the following steps:

[0067] Add 15g perfluorooctyl ethyl acrylate, 1.852g 1,2-epoxy-5-hexene, 0.174g AIBN as initiator and 50ml trifluorotoluene into a 100ml round bottom flask, stir and dissolve the reaction system , bubbling with argon gas for 30 minutes, carrying out the polymerization reaction at 90°C for 8h, the reaction product was precipitated in methanol, washed with methanol and then washed with n-hexane, and then vacuum-dried at 40°C for 24h to constant weight to obtain the product. The molecular weight of the product is 68880.

[0068] The structure of the product is shown below:

[0069]

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 discloses a cross-linkable fluorine-containing polymer, and its application in the preparation of super-amphiphobic surfaces. The cross-linkable fluorine-containing polymer is obtained through polymerizing a monomer A and a monomer B, and has a molecular weight of 500-47000, wherein the molar ratio of the monomer A to the monomer B is 1:(0.2-10); the structures of the monomer A and the monomer B are represented by formula I and formula II respectively; and in the formula I and the formula II, R1 and R2 are H or CH3, R3 is CH2, O, COOCH2 or C6H6, n, m and z are integers between 0 and 10 respectively, y is 0 or 1, and X is an epoxy group. The cross-linkable fluorine-containing polymer prepared in the invention contain the epoxy group, so the advantage of the bonding of the epoxy group with most base material surfaces is utilized to construct the super-amphiphobic surfaces on the most base material surfaces. The super-amphiphobic surfaces prepared through utilizing the cross-linkable fluorine-containing polymer have the advantages of firm bonding with base materials, friction resistance and laundering durability.

Description

technical field [0001] The invention belongs to the field of super-amphiphobic materials, in particular to a cross-linkable fluorine-containing polymer and its application in preparing super-amphiphobic surfaces. Background technique [0002] The most important characteristic parameter of surface wetting behavior is the contact angle. If the static contact angle of the surface to water is less than 10°, it is called a superhydrophilic surface; if the surface has a contact angle greater than 150°, it is called a superhydrophobic surface. A surface can be considered a superoleophobic surface if it has a contact angle of greater than 150° for oil. If the surface has both superhydrophobic and superoleophobic properties, it is called a superamphiphobic surface. [0003] Due to its unique hydrophobic and oleophobic properties, superamphiphobic surfaces can be applied in many fields. The superamphiphobic surface has a self-cleaning function and can be used in solar panels or some...

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): C08F293/00C08F220/22C08F220/32C08F224/00C08G81/02D06M15/227D06M15/37D21H19/20D21H19/24B27K3/36C03C17/30C04B41/83C08J7/04C01B33/18C09D153/00C09D133/16C09D187/00D06M101/06
Inventor 胡继文邹海良刘国军张干伟刘锋侯成敏杨洋李妃
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY 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