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Super-amphiphobic polymer and super-amphiphobic surface prepared from super-amphiphobic polymer

A super-amphiphobic, polymer technology, applied in the addition of inorganic compounds, plant fibers, water repellents, etc., can solve the problems of difficult industrial production and application, insufficient bonding strength, easy surface damage, etc., and achieve good surface hydrophobicity. and oleophobicity, simple preparation method and good stability

Inactive Publication Date: 2012-05-02
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method also has the problem of insufficient bonding strength or easy damage to the surface
Chinese patent CN 1379128A proposes a chemical vapor deposition method to prepare an array structure film with super-amphiphobic properties, but the process is relatively harsh and it is not easy for industrial production and application

Method used

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  • Super-amphiphobic polymer and super-amphiphobic surface prepared from super-amphiphobic polymer
  • Super-amphiphobic polymer and super-amphiphobic surface prepared from super-amphiphobic polymer
  • Super-amphiphobic polymer and super-amphiphobic surface prepared from super-amphiphobic polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A preparation method of super amphiphobic polymer, comprising the following steps:

[0053] Add 15g of perfluorooctyl ethyl acrylate, 1.852g of methacryloxypropyltrimethoxysilane, 0.203g of 2-bromoisobutyric acid monomethoxyethylene glycol, 0.737g in a 100ml round bottom flask g 4,4'-dinonyl-2,2'-bipyridine and 4ml benzotrifluoride, the reaction system was stirred and dissolved, and the argon gas was bubbled for 30min, and then the oxygen was removed, and then the reaction system was transferred to a container equipped with 0.1294g In a 100ml round bottom flask of cuprous bromide, carry out the polymerization reaction at 90°C for 8h, the reaction product is 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 .

[0054] The spectral analysis of the product is as follows: 1 H-NMR (hexafluorobenzene / CDCl 3 = 2 / 1 volume ratio): 2.60 (m, -CH 2 -(CF 2 ) 7 CF 3 , 2H)...

Embodiment 2

[0058] A preparation method of super amphiphobic polymer, comprising the following steps:

[0059] In a 100ml round bottom flask, add 15g perfluorooctyl ethyl acrylate, 1.852g methacryloxypropyltrimethoxysilane, 0.174g AIBN as initiator and 50ml trifluorotoluene, and stir the reaction system Dissolved, bubbled with argon for 30 minutes, and polymerized at 90°C for 8 hours. The reaction product was precipitated in methanol, washed with methanol and then washed with n-hexane, and then vacuum-dried at 40°C for 24 hours to constant weight to obtain the product.

[0060] The spectral analysis of the product is as follows: 1 H-NMR (hexafluorobenzene / CDCl 3 = 2 / 1 volume ratio): 2.60 (m, -CH 2 -(CF 2 ) 7 CF 3 , 2H), 3.42(m, -O-CH 3 , 3H), 0.65(m, -CH 2 -Si(OCH 3 ) 3 , 2H); Specific NMR chemical shift and figure 1 Similarly, it can be deduced that the structure of the product of this example is the same as formula III in combination with the NMR image. It can be inferred that...

Embodiment 3

[0062] Preparation of polymer nanospheres containing hydroxyl groups on the surface:

[0063] Under stirring, in the there-necked flask of 500 milliliters, gradually add the mixture of 130 milliliters of distilled waters, 4.80 grams (48.0 millimoles) methyl methacrylate and 0.4 grams (2.0 millimoles) ethylene glycol dimethacrylate, and 41 mg (0.15 micromol) of potassium peroxodisulfate in water (5 mL). Nitrogen was blown through the reaction system at 25°C for 15 minutes to remove oxygen in the system. Then heated to 90° C. in an oil bath, and reacted for 2 hours.

[0064] 43 milliliters of the solution was taken out from the above system, added to a 250 milliliter three-necked flask filled with nitrogen, and 0.5 milliliters of a solution of 2.4 milligrams (14.6 micromoles) of azobisisobutyronitrile in tetrahydrofuran was added. After stirring for 15 minutes at 25°C, it was heated to 90°C. Then slowly add the solution containing 0.4 g (1.9 mmol) ethylene glycol diester 2-ch...

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Abstract

The invention belongs to the field of macromolecule super-amphiphobic materials and discloses a super-amphiphobic polymer and a super-amphiphobic surface. The super-amphiphobic polymer is a random copolymer composed of structural units shown as a formula I and a formula II. The super-amphiphobic surface is obtained by comprising the following steps of: pre-processing a substrate material; placinga micro-balloon in a fluorine-containing solvent, and ultrasonically dissolving to obtain a micro-balloon supernatant solution; adding the super-amphiphobic polymer, a hydrochloric acid tetrahydrofuran solution and water into the micro-balloon solution while stirring, placing the substrate material, and reacting for 5-24 h; and taking out the substrate material, washing by using the fluorine-containing solvent, methanol and water in turn, drying in vacuum, and obtaining the super-amphiphobic surface. The super-amphiphobic polymer disclosed by the invention can give good surface hydrophobic ability and oleophobic ability to the substrate. Because the polymer has the characteristics of the fluorine-containing polymer so that the polymer can be chemically bonded with the surface of the substrate, the obtained super-amphiphobic surface has good scrubbing resistant property and corrosion resistant property.

Description

technical field [0001] The invention belongs to the field of macromolecule superamphiphobic materials, and in particular relates to an amphiphobic polymer, a preparation method thereof, and a superamphiphobic surface prepared from the amphiphobic polymer. Background technique [0002] The most important characterization parameter of surface wetting behavior is the contact angle. If the static contact angle of the surface is less than 10°, we call it a superhydrophilic surface. If the surface has a contact angle greater than 150°, we call it a superhydrophobic surface. If the surface has both superhydrophobic and superoleophobic properties, we call it a superamphiphobic surface. [0003] Due to its unique hydrophobic and oleophobic properties, superhydrophobic surfaces are expected or have been applied in many fields. The superamphiphobic surface has a self-cleaning function and can be used for solar panels or some mirrors that need to be kept clean, such as the surface of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/24C08F230/08C03C17/30C03C17/23D21H17/68D21H17/38D21H21/16D06M15/277D06M11/79D06M101/06
Inventor 胡继文张干伟邹海良李银辉刘国军涂园园胡美龙
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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