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Fluorine-silicon acrylic resin nano composite anti-icing coating and preparation method thereof

A technology of fluorosilicone acrylic and acrylic resin, applied in the direction of coating, etc., can solve problems such as high cost, unsuitable for large-scale use, complex technology, etc.

Inactive Publication Date: 2012-01-18
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to prepare a super-hydrophobic anti-icing coating, while overcoming the shortcomings of the general preparation of super-hydrophobic coating methods such as complicated technology, high cost, and unsuitable for large-area use. The developed coating can be achieved by conventional spraying methods. The effect of superhydrophobic anti-icing

Method used

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  • Fluorine-silicon acrylic resin nano composite anti-icing coating and preparation method thereof
  • Fluorine-silicon acrylic resin nano composite anti-icing coating and preparation method thereof
  • Fluorine-silicon acrylic resin nano composite anti-icing coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] 1. Add 50g of toluene into a four-neck flask, blow in nitrogen gas, and raise the temperature to 80°C. Subsequently, 4 g methyl methacrylate, 8 g butyl methacrylate, 2.81 g butyl acrylate, 3 g glycidyl methacrylate, 4 g dodecafluoroheptyl methacrylate, 0.21 g azobisiso For the mixed solution of butyronitrile, after constant temperature reaction for 0.5 h, continue to drop the mixed solution of 0.1 g of azobisisobutyronitrile and 10 g of toluene within 0.5 h. Continue to react for 2h. After the reaction, the resin was purified with n-hexane and dried in vacuum. The obtained fluorine-containing acrylic resin has a surface energy of 18 mN / m, a contact angle with water of 112° at room temperature, and a contact angle of 105° at -10°C.

[0033] 2. Add 150ml of toluene and 5g of silicon dioxide with a particle size of 20nm into a beaker, and use a 600W cell pulverizer to ultrasonically disperse for 3 minutes. Then 2g of γ-methacryloxypropyltrimethoxysilane was added dropwi...

Embodiment 2

[0037] 1. Add 50g of toluene into a four-neck flask, blow in nitrogen gas, and raise the temperature to 80°C. Subsequently, 4 g methyl methacrylate, 8 g butyl methacrylate, 2.81 g butyl acrylate, 3 g glycidyl methacrylate, 4 g trifluorooctyl methacrylate, 0.21 g azobisiso For the mixed solution of butyronitrile, after constant temperature reaction for 0.5 h, continue to drop the mixed solution of 0.1 g of azobisisobutyronitrile and 10 g of toluene within 0.5 h. Continue to react for 2h. After the reaction, the resin was purified with n-hexane and dried in vacuum. The surface energy of the obtained fluorine-containing acrylic resin was 16 mN / m, the contact angle of water at room temperature was 115°, and the contact angle at -10°C was 108.

[0038] 2. Add 150ml of toluene and 5g of silicon dioxide with a particle size of 50nm in a beaker, and use a cell pulverizer to ultrasonically disperse at 600W for 3min. Then 2g of hexadecyltrimethoxysilane was added dropwise, mixed even...

Embodiment 3

[0041] 1. Add 50g of toluene into a four-neck flask, blow in nitrogen gas, and raise the temperature to 80°C. Then add 5g methyl methacrylate, 6g butyl methacrylate, 4g butyl acrylate, 3g hydroxyethyl methacrylate, 4g trifluorooctyl methacrylate, 0.21g azobisisobutyl within 3h Nitrile mixed solution, after constant temperature reaction for 0.5h, add 0.1g azobisisobutyronitrile and 10g toluene mixed solution within 0.5h. After continuing the reaction for 2 h, the reaction was terminated, and the resin was purified with n-hexane and dried in vacuum. The surface energy of the obtained fluorine-containing acrylic resin was 17 mN / m, the contact angle of water at room temperature was 114°, and the contact angle at -10°C was 103°.

[0042] 2. Add 150ml of toluene and 5g of silicon dioxide with a particle size of 15-20nm in a beaker, and use a cell pulverizer to ultrasonically disperse at 600W for 3min. Then 2g of heptadecafluorodecyltriethoxysilane was added dropwise, mixed evenly,...

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Abstract

The invention discloses a super hydrophobic anti-icing coating and a preparation method thereof, and is realized by preparing a fluorine contained acrylic resin and combining the fluorine contained acrylic resin with organosilicon resin and nano particles. In a scheme of the invention, the fluorine contained acrylic resin has small surface energy and strong hydrophobicity. The organosilicon resin utilizes effect of -CH3 on a surface thereof and small polarity to substantially reduce contact angle hysteresis. The fluorine contained acrylic resin can crosslink and solidify with the nano particles and active groups in the organosilicon resin to form a composite network. The invention can overcome defects of complex technology, high costs and unsuitability for large scale usage of an ordinary method for preparing a super hydrophobic coating; and the prepared coating can realize super hydrophobic anti-icing effect through a regular spraying method.

Description

technical field [0001] The invention belongs to the technical field of surface coatings in chemistry and chemical engineering, and relates to an anti-icing coating, in particular to a fluorosilicon-acrylic acid composite resin and a preparation method thereof. Background technique [0002] Icing is formed by the combination of very complex weather processes and microphysical processes. According to the conditions of formation and the degree of damage, there are basic types such as rime icing, mixed rime icing, ice rime icing, hoarfrost, and snow. . Mixed rime is a composite icing process, firstly rime, then rime, which is a form of alternating ice, which grows faster and is particularly harmful. [0003] In the face of the hazards caused by icing on aircraft and wires, the research on anti-icing technology began in the 1950s, which can be generally divided into active deicing technology and passive anti-icing technology. Active deicing technology mainly uses physical metho...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D133/10C09D133/12C09D133/16C09D183/04C09D7/12C09D5/00C08F220/18C08F220/22C08F220/14C08F2/06
Inventor 袁晓燕周建伟赵蕴慧刘喆李辉余冬梅
Owner TIANJIN UNIV
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