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Superhydrophobic coating containing poss block acrylate copolymer and preparation method thereof

A super-hydrophobic coating and acrylate technology, applied in the field of polymer materials and surface science, to achieve the effect of promoting the development of surface roughness, excellent super-hydrophobic performance, and excellent self-cleaning performance

Inactive Publication Date: 2017-06-06
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as far as the reports on the preparation of superhydrophobic coatings by spraying are concerned, their application objects are also limited to nanoparticle dispersions and multi-component polymer mixtures, and spraying a single-component solution of organic-inorganic hybrid polymers to prepare superhydrophobic coatings. layer has not seen any reports yet

Method used

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  • Superhydrophobic coating containing poss block acrylate copolymer and preparation method thereof
  • Superhydrophobic coating containing poss block acrylate copolymer and preparation method thereof
  • Superhydrophobic coating containing poss block acrylate copolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1) Preparation of POSS-containing block acrylate copolymer

[0046] Atom transfer radical polymerization (ATRP) was used to prepare POSS-containing acrylate block copolymers: first, 3.7 mL of methyl methacrylate (MMA), 6.2 mL of butyl acrylate (BA), 1.7 mL of Hydroxyethyl methacrylate (HEMA), 7 mL solvent cyclohexanone, 244 µL ligand N,N,N',N",N"–pentamethyldiethylenetriamine (PMDETA), 102 µL initiator abromopropyl Ethyl acetate (EPN‐Br) and 0.0777g catalyst cuprous chloride (CuCl), the reaction system was frozen in liquid nitrogen-vacuumize-thaw cycle 5 times to remove oxygen, and then the reaction system was heated at 70°C under the protection of argon atmosphere. After reacting at high temperature for 16 hours, the obtained product was washed and precipitated three times with excess petroleum ether after cooling, and dried in a vacuum oven for three days to constant weight to obtain a macromolecular initiator. 2.8g of the macroinitiator was dissolved in a reaction f...

Embodiment 2

[0059] 1) Preparation of POSS-containing block acrylate copolymer

[0060] Atom transfer radical polymerization (ATRP) was used to prepare POSS-containing acrylate block copolymers: first, 3.7 mL of methyl methacrylate (MMA), 6.2 mL of butyl acrylate (BA), 1.7 mL of Hydroxyethyl methacrylate (HEMA), 7 mL solvent cyclohexanone, 491 µL ligand N,N,N',N",N"–pentamethyldiethylenetriamine (PMDETA), 205 µL initiator abromopropyl Ethyl acetate (EPN‐Br) and 0.1566g catalyst cuprous chloride (CuCl), the reaction system was frozen in liquid nitrogen-vacuumize-thaw cycle 5 times to remove oxygen, and then the reaction system was heated at 70°C under the protection of argon atmosphere. After reacting at high temperature for 16 hours, the obtained product was washed and precipitated three times with excess petroleum ether after cooling, and dried in a vacuum oven for three days to constant weight to obtain a macromolecular initiator. 2.8g of macroinitiator was dissolved in a reaction flask...

Embodiment 3

[0070] 1) Preparation and characterization of POSS-containing block acrylate copolymer

[0071]Atom transfer radical polymerization (ATRP) was used to prepare POSS-containing acrylate block copolymers: first, 3.7 mL of methyl methacrylate (MMA), 6.2 mL of butyl acrylate (BA), 1.7 mL of Hydroxyethyl methacrylate (HEMA), 7 mL solvent cyclohexanone, 146 µL ligand N,N,N',N",N"–pentamethyldiethylenetriamine (PMDETA), 61 µL initiator abromopropyl Ethyl acetate (EPN-Br) and 0.0466g catalyst cuprous chloride (CuCl), the reaction system was frozen in liquid nitrogen-vacuumize-thaw cycle 5 times to remove oxygen, and then the reaction system was heated at 70°C under the protection of argon atmosphere. After reacting at high temperature for 16 hours, the obtained product was washed and precipitated three times with excess petroleum ether after cooling, and dried in a vacuum oven for three days to constant weight to obtain a macromolecular initiator. 3.29g macroinitiator was dissolved in...

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Abstract

The invention discloses a POSS-block-containing acrylate copolymer super-hydrophobic coating and a preparing method thereof. The preparing method includes the steps of when preparing is carried out, pre-treating a base material; preparing a POSS-block-containing acrylate copolymer solution; spraying the prepared copolymer solution to the pre-treated base material, and obtaining the super-hydrophobic coating with the thickness of 10 micrometers to 200 micrometers. The POSS-block-containing acrylate copolymer super-hydrophobic coating is independently made of POSS-block-containing acrylate copolymers, the static water contact angle of the coating is larger than 150 degrees, the rolling angle is smaller than 8 degrees, and the grade of the adhesive force of the coating is the zero grade or the first grade. The super-hydrophobic coating and the preparing method have the advantages that an operation technology is simple, and cost is quite low; in addition, the operation environment is friendly, raw materials are easy to get, and industrial large-scale production is facilitated.

Description

technical field [0001] The invention relates to a superhydrophobic coating, in particular to a superhydrophobic coating containing a POSS block acrylate copolymer and a preparation method thereof, belonging to the field of polymer materials and surface science. Background technique [0002] Superhydrophobic coating refers to a type of coating with a static contact angle of more than 150° to water and a rolling angle of less than 10°. This coating has broad application prospects in the fields of self-cleaning, oil-water separation, and anti-icing. [0003] Inspired by the lotus leaf effect, the preparation of superhydrophobic coatings needs to meet two conditions, namely micro-nano composite rough structure and low surface energy substances. Fluorine-containing substances, especially those containing fluorocarbon long-chain structures, are widely used to modify surfaces because of their extremely low surface energy to achieve the purpose of obtaining low surface energy coatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D153/00C09D5/16C08F293/00C03C17/30
Inventor 皮丕辉王鹏侯昆文秀芳徐守萍程江
Owner SOUTH CHINA UNIV OF TECH
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