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Preparation method of polyphenyl ether super-hydrophobic coating

A super-hydrophobic coating, polyphenylene ether technology, used in the field of coatings to achieve excellent strength and wear resistance, improve wear resistance, and low equipment requirements.

Active Publication Date: 2021-08-27
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: Aiming at the problems existing in the prior art, the present invention provides a method for preparing a polyphenylene ether superhydrophobic coating, using allyl-modified polyphenylene ether as the resin matrix and nanoparticles, and cooperating with a crosslinking agent and Auxiliaries, through in-situ photopolymerization to obtain highly cross-linked polyphenylene ether superhydrophobic coating; this preparation method is not only convenient to operate, energy-saving and environmentally friendly, but also effectively overcomes the poor compatibility between traditional inorganic nanoparticles and resin matrix, and no chemical bond cross-linking However, the prepared polyphenylene ether superhydrophobic coating has the advantages of good wear resistance, high mechanical strength, and durable superhydrophobic performance, and has broad market prospects.

Method used

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  • Preparation method of polyphenyl ether super-hydrophobic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0020] Dissolve 10g of hydroxyl-terminated polyphenylene ether resin and 3g of isocyanate ethyl acrylate in 150mL of chloroform, stir at room temperature for 60 min, pour into a large amount of methanol for precipitation after the reaction, and vacuum dry to obtain allyl-modified polyphenylene ether resin;

[0021] 10g of the above-mentioned allyl-modified polyphenylene ether resin, 0.2g of 2-perfluorodecyl ethyl acrylate, 0.3g of trimethylolpropane triacrylate, and 3g of double-terminal alkenyl-modified polydimethylsiloxane Add alkane and 0.2g diphenyl-(2,4,6-trimethylbenzoyl) into 100mL chloroform, mix and stir evenly to obtain a homogeneous solution;

[0022] The above-mentioned homogeneous solution was coated on a glass substrate, and irradiated for 30 minutes under an ultraviolet lamp to obtain a polyphenylene ether superhydrophobic coating.

Embodiment approach 2

[0024] Dissolve 10g of hydroxyl-terminated polyphenylene ether resin and 4g of isocyanoethyl methacrylate in 100mL of xylene, stir at room temperature for 120 min, pour into a large amount of methanol to precipitate after the reaction, and dry in vacuum to obtain allyl-modified polyphenylene ether resin;

[0025] 10g of the above-mentioned allyl-modified polyphenylene ether resin, 0.4g of 1H, 1H-perfluorooctyl acrylate, 0.5g of pentaerythritol tetraacrylate, 5g of double-terminal alkenyl-modified polydimethylsiloxane and 0.3 g benzil dimethyl ether was added in 100mL chloroform, mixed and stirred evenly to obtain a homogeneous solution;

[0026] The above-mentioned homogeneous solution was coated on the aluminum alloy substrate, and irradiated for 40 minutes under the ultraviolet lamp to obtain a polyphenylene ether superhydrophobic coating.

Embodiment approach 3

[0028] Dissolve 10g of hydroxyl-terminated polyphenylene ether resin and 2g of 3-propene isocyanate in 100mL of tetrahydrofuran, stir at room temperature for 60 min, and pour it into a large amount of methanol to precipitate and dry it in vacuum to obtain allyl-modified polyphenylene ether resin;

[0029] 10g of the above-mentioned allyl-modified polyphenylene ether resin, 0.5g of 2-(perfluorooctyl)ethyl methacrylate, 0.5g of triallyl trimesate, 6g of 1,4-bis(ethylene Dimethylsilyl) benzene and 0.4g 1-hydroxycyclohexyl phenyl ketone were added in 100mL tetrahydrofuran, mixed and stirred evenly to obtain a homogeneous solution;

[0030] The above-mentioned homogeneous solution was coated on a tinplate substrate, and irradiated for 60 minutes under an ultraviolet lamp to obtain a polyphenylene ether superhydrophobic coating.

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Abstract

The invention belongs to the technical field of coatings, and discloses a preparation method of a polyphenyl ether super-hydrophobic coating. The method comprises the following steps: dissolving allyl functionalized isocyanate and hydroxyl-terminated polyphenyl ether resin in an organic solvent, stirring at room temperature for 30-120 minutes, pouring into a certain amount of methanol after the reaction is ended, precipitating, and drying in vacuum to obtain allyl modified polyphenyl ether resin; and adding the allyl modified polyphenyl ether resin, the long-chain fluorine-containing acrylate resin, a polyfunctionality acrylic cross-linking agent, the alkenyl-terminated modified organic silicon resin and an initiator into a certain amount of organic solvent, uniformly mixing and stirring, coating on a substrate, and illuminating under an ultraviolet lamp for a preset time to obtain the polyphenyl ether super-hydrophobic coating. The preparation method disclosed by the invention is convenient to operate, energy-saving and environment-friendly, and the prepared polyphenyl ether super-hydrophobic coating has the advantages of good wear resistance, high mechanical strength, lasting super-hydrophobic performance and the like, is a new generation of green, environment-friendly and high-performance high polymer material, and has a wide market prospect.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a preparation method of a polyphenylene ether superhydrophobic coating. Background technique [0002] Superhydrophobic coatings are widely used in self-cleaning, anti-corrosion, anti-icing and other fields. However, the preparation of traditional superhydrophobic coatings often requires the addition of inorganic nanoparticles to the resin, which makes the coatings easy to fall off under the action of external force, resulting in poor wear resistance, low strength and other shortcomings, making it difficult to industrialize. [0003] Polyphenylene ether (PPO) has the characteristics of low dielectric constant, high heat resistance, good dimensional stability and low water absorption. It is one of the five general engineering plastics in the world and is widely used in electronics, intelligent manufacturing, printing Control circuits, aviation and military industries and other fi...

Claims

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Application Information

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IPC IPC(8): C09D171/12C09D7/65
CPCC09D171/12C09D7/65C08L83/04
Inventor 倪伶俐徐成鹏李珊珊赵萌蔡鹏姜孝武高晓燕
Owner HUAIYIN INSTITUTE OF TECHNOLOGY