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Aqueous dispersion crosslinkable random fluoropolymer and constructed super-amphiphobic coat through aqueous dispersion crosslinkable random fluoropolymer

An amphiphilic polymer and cross-linking technology, which can be used in coatings, plant fibers, textiles, and papermaking, can solve the problems of high synthesis cost of block polymers, unsuitability for large-scale industrialization, and complex processes , to achieve the effects of cost reduction and industrialization, wide application, simple synthesis method and synthesis conditions

Inactive Publication Date: 2013-11-27
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned amphiphilic fluoropolymers are all block polymers prepared by controllable active polymers. Relatively speaking, the synthesis cost of block polymers is relatively high, and the process is very complicated, so it is not suitable for large-scale industries. change

Method used

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  • Aqueous dispersion crosslinkable random fluoropolymer and constructed super-amphiphobic coat through aqueous dispersion crosslinkable random fluoropolymer
  • Aqueous dispersion crosslinkable random fluoropolymer and constructed super-amphiphobic coat through aqueous dispersion crosslinkable random fluoropolymer
  • Aqueous dispersion crosslinkable random fluoropolymer and constructed super-amphiphobic coat through aqueous dispersion crosslinkable random fluoropolymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Use free radical polymerization to synthesize water-dispersible crosslinkable random fluoropolymer with the following structure: take 80mL cyclohexanone, 5.8g trifluoroethyl methacrylate, 1.2g glycidyl methacrylate, 2.3g polyethylene glycol methyl methacrylate (n=4) and 0.02g azobisisobutyronitrile were added to a 200ml reaction flask. After deoxygenation, it was placed in a flask at 80°C and stirred for 3.5 hours. After that, the reaction was terminated. Then it was concentrated to 20ml with a rotary evaporator, then precipitated from n-hexane, and dried in vacuum to obtain a water-dispersible crosslinkable random fluoropolymer with the following structure, with a mass of 6.2g.

[0031]

[0032] (2) A method for constructing super-biphobic coating with water-dispersible crosslinkable fluoropolymer:

[0033] Dissolve the water-dispersible crosslinkable random fluoropolymer obtained in the above step (1) in a solvent, then add a catalyst and inorganic nanoparticles to fo...

Embodiment 2

[0036] (1) Use free radical polymerization to synthesize a water-dispersible crosslinkable random fluoropolymer with the following structure: take 100mL dioxane, 9.8g tridecafluorooctyl methacrylate, 4.2g glycidyl methacrylate Ether, 4.3g polyethylene glycol methyl methacrylate (n=4), 0.08g azobisisobutyronitrile were added to a 200ml reaction flask, after deoxygenation, put it in a flask at 70°C and stir to react After 5.5 hours, the reaction was terminated. Then it was concentrated to 20ml with a rotary evaporator, and then precipitated from anhydrous ether, and then dried under vacuum to obtain a water-dispersible crosslinkable random fluoropolymer with the following structure, with a mass of 12.2g.

[0037]

[0038] (2) A method for constructing super-biphobic coating with water-dispersible crosslinkable fluoropolymer:

[0039] Dissolve the water-dispersible cross-linkable random fluoropolymer obtained in the above step (1) in a solvent, and then add catalyst and inorganic nan...

Embodiment 3

[0043] (1) Use free radical polymerization to synthesize a water-dispersible crosslinkable random fluoropolymer with the following structure: take 100mL dioxane, 6.7g hexafluorobutyl methacrylate, 3.2g methacrylic acid-4-4 Azide phenyl ester (the synthesis method, reference: Li Guang, synthesis of new azide monomers, polymer reaction and polymer application research, 2010 PhD thesis of University of Science and Technology of China), 3.3g polyethylene glycol methyl Methyl methacrylate (n=10), 0.02g benzoyl peroxide was added to a 200ml reaction flask, after deoxygenation, it was placed in a flask at 70°C, and the reaction was terminated after stirring for 5.5 hours. Then it was concentrated to 20ml with a rotary evaporator, and then precipitated from anhydrous ether, and then dried under vacuum to obtain a water-dispersible crosslinkable random fluoropolymer with the following structure, with a mass of 10.2g.

[0044]

[0045] (2) A method for constructing super-biphobic coating w...

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Abstract

The invention belongs to the field of super-amphiphobic materials and discloses an aqueous dispersion crosslinkable random fluoropolymer and a constructed super-amphiphobic coat through the aqueous dispersion crosslinkable random fluoropolymer. The aqueous dispersion crosslinkable random fluoropolymer is an amphiphilic polymer with the structural formula of poly (A-r-B-r-C) and is obtained through the polymerization reaction of an aqueous dispersion monomer A, a crosslinkable monomer B and a fluorine-containing monomer C. The steps for constructing the super-amphiphobic coat through the aqueous dispersion crosslinkable random fluoropolymer are as follows: dissolving the aqueous dispersion crosslinkable random fluoropolymer into solvent, and adding a catalyst and inorganic nano-particles to form a solution; soaking a base material in the solution, or spraying the solution on the surface of the base material, and drying the base material for 1-5 hours in a dryer at the temperature of 40-120 DEG C.

Description

Technical field [0001] The invention belongs to the field of super-biphobic materials, and specifically relates to a water-dispersible crosslinkable random fluorine-containing polymer and a constructed super-biphobic coating. Background technique [0002] Super-hydrophobic or super-double surfaces have extremely broad application prospects in industrial and agricultural production and daily life. Among them, super-hydrophobic super-hydrophobic materials have broad application prospects in national defense, industrial and agricultural production and daily life due to their excellent water repellency. For example: (1) Used on clothing and other textiles, it can play a role in waterproof, stain-proof and self-cleaning. (2) Used in glass (especially high-wall glass, car windshield, etc.), ceramics, concrete, wood and other building materials, which can make the materials have self-cleaning (the appearance of cleanliness can be maintained by using rainwater) or easy to clean The eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/22C08F220/32C08F220/28C08F220/36C08F230/08D06M15/277C09D133/16C09D7/12C04B41/48C03C17/32D06M101/06
Inventor 胡继文邹海良林树东李妃张干伟涂圆圆刘国军胡美龙
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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