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UV-cured POSS fluorine-containing acrylate segmented copolymer coating, preparation and application thereof

A technology of block copolymer and polyfluoroalkyl acrylate, which is applied in the direction of coating to achieve the effects of excellent coating performance, simple and efficient curing, and good hydrophobicity

Inactive Publication Date: 2015-12-09
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • UV-cured POSS fluorine-containing acrylate segmented copolymer coating, preparation and application thereof
  • UV-cured POSS fluorine-containing acrylate segmented copolymer coating, preparation and application thereof
  • UV-cured POSS fluorine-containing acrylate segmented copolymer coating, preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Preparation of PMAPOSS-b-polydodecafluoroheptyl methacrylate block copolymer with mercapto group

[0044] Weigh 0.40g MAPOSS monomer, chain transfer agent 4-cyano-4-(thiobenzoyl) pentanoic acid (CPADB) 0.008g and initiator azobisisobutyronitrile (AIBN) 1.63mg, according to molar ratio 10 :2:1 is fully dissolved in toluene solvent, and prepared into a solution with a mass fraction of 20%, and then the air in the bottle is drained and protected with nitrogen. Under the condition of 70°C oil bath, the reaction was carried out under magnetic stirring for 10 hours; after the reaction, the product was dropped into a large amount of methanol for precipitation, unreacted monomers and solvents were removed, and vacuum-dried at room temperature for 24 hours to obtain PMAPOSS copolymer.

[0045] 0.80g of dodecafluoroheptyl methacrylate, 0.40g of PMAPOSS and 2.2mg of azobisisobutyronitrile (AIBN) were dissolved in trifluorotoluene according to the molar ratio of 40:2:1 to form ...

Embodiment 2

[0058] (1) Preparation of PMAPOSS-b-polydodecafluoroheptyl methacrylate block copolymer with mercapto group

[0059] Weigh 0.40g MAPOSS monomer, chain transfer agent 4-cyano-4-(thiobenzoyl)valeric acid (CPADB) 0.02g and initiator azobisisobutyronitrile (AIBN) 1.63mg, according to molar ratio 10 :5:1 is fully dissolved in toluene solvent, and prepared as a solution with a mass fraction of 30%, and then the air in the bottle is drained and protected with nitrogen. Under the condition of 60°C oil bath, magnetically stirred for 20 hours; after the reaction, the product was added dropwise to a large amount of methanol for precipitation, unreacted monomers and solvents were removed, and vacuum-dried at room temperature for 24 hours to obtain PMAPOSS copolymer.

[0060] 1.00g of dodecafluoroheptyl methacrylate, 0.80g of PMAPOSS and 2.20mg of azobisisobutyronitrile (AIBN) were dissolved in trifluorotoluene according to the molar ratio of 50:4:1, and configured into a solution with a m...

Embodiment 3

[0073] (1) Preparation of PMAPOSS-b-polydodecafluoroheptyl methacrylate block copolymer with mercapto group

[0074] Weigh 0.80g MAPOSS monomer, chain transfer agent 4-cyano-4-(thiobenzoyl)valeric acid (CPADB) 0.04g and initiator azobisisobutyronitrile (AIBN) 1.63mg, according to molar ratio 20 :10:1 is fully dissolved in toluene solvent, and prepared into a solution with a mass fraction of 50%, and then the air in the bottle is drained and protected with nitrogen. Under the condition of 70°C oil bath, magnetically stirred for 20 hours; after the reaction, the product was added dropwise to a large amount of methanol for precipitation, unreacted monomers and solvents were removed, and vacuum-dried at room temperature for 24 hours to obtain PMAPOSS copolymer.

[0075] 2.00g of dodecafluoroheptyl methacrylate, 2.00g of PMAPOSS and 2.21mg of azobisisobutyronitrile (AIBN) were dissolved in trifluorotoluene according to a molar ratio of 100:10:1, and configured into a solution with ...

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Abstract

The invention provides a UV-cured POSS fluorine-containing acrylate segmented copolymer coating, preparation and application thereof. The coating is composed of the following components in percentage by weight: 1 to 30% of PMAPOSS-b-polyfluoroalkyl acrylate segmented copolymer with mercapto end groups, 30 to 50% of vinyl polysiloxane, 30 to 50% of mercapto polysiloxane, and 1 to 6% of photo-initiator. The preparation method comprises the following steps: dissolving PMAPOSS-b-polyfluoroalkyl acrylate segmented copolymer with mercapto end groups, mercapto polysiloxane, vinyl polysiloxane and photo-initiator into a solvent to prepare a solution with a mass concentration of 10 to 50%, painting the solution on the surface of a substrate, drying the substrate surface at a room temperature, and then curing the substrate surface under UV radiation for 10 to 30 minutes so as to obtain a UV-cured POSS fluorine-containing acrylate segmented copolymer composite organic silicon coating. The prepared light-cured coating has the advantages of quick curing speed, high transparency, good hydrophobicity, and low ice shearing strength, and can be applied to the field of hydrophobic and anti-icing coating.

Description

technical field [0001] The invention relates to an ultraviolet light curing POSS fluorine-containing acrylate block copolymer composite organic silicon coating and its preparation and application, belonging to the technical field of hydrophobic anti-icing and application. Background technique [0002] In aerospace, power communication, transportation and other fields, icing on the surface of the substrate brings great harm and economic loss to human beings and society. Although traditional physical deicing methods (such as mechanical deicing, heating deicing) and chemical deicing methods (spraying salt water, adding anti-icing agents) have been widely used, there are many problems such as low efficiency and environmental pollution. The method for constructing an anti-icing functional coating on the surface of a substrate is low in cost, low in energy consumption, easy to implement, and has great application value. [0003] Fluorine-containing materials are widely used in th...

Claims

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Application Information

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IPC IPC(8): C09D183/08C09D183/07C09D153/00C08F293/00
Inventor 袁晓燕张凯强赵蕴慧朱孔营李晓晖
Owner TIANJIN UNIV
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