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A kind of superhydrophobic anti-icing coating with magnetocaloric performance and preparation method thereof

A super-hydrophobic and anti-icing technology, applied in the coating and other directions, can solve the problems of damage to the coating, difficulty in removal, loss of super-hydrophobic properties of the coating, etc., and achieve excellent magnetocaloric performance and delay the effect of icing

Active Publication Date: 2017-10-31
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under high humidity and low temperature, the water mist in the air will penetrate into the gaps of the rough structure of the superhydrophobic surface, thus freezing; after freezing in the gaps, the rough structure of the coating will be destroyed and the coating will lose its superhydrophobic properties. , and this kind of icing is on the surface of the rough nano-micro structure, the adhesion between the ice and the surface of the substrate is strong after icing, and it is very difficult to remove

Method used

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  • A kind of superhydrophobic anti-icing coating with magnetocaloric performance and preparation method thereof
  • A kind of superhydrophobic anti-icing coating with magnetocaloric performance and preparation method thereof
  • A kind of superhydrophobic anti-icing coating with magnetocaloric performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0049] The 2,2'-azobisisobutyronitrile (AIBN) of 0.096g is dissolved in the butyl acetate of 1.6g, puts into and is connected with condenser tube and N 2 Preheat the three-necked flask of the air blowing device to 75°C; add 0.96g of [N-methyl perfluorohexanesulfonamido]ethyl acrylate, 6.4g of octadecyl methacrylate, and 0.64g of methacrylic acid Glycidyl esters, 0.04g of dodecyl mercaptan and 0.24g of AIBN were dissolved in 14.4g of butyl acetate, put into a constant pressure dropping funnel, and added dropwise to a three-necked flask, and the dropping speed was controlled to make it drop for 4 hours ; Then under the protection of nitrogen, after 4 hours of polymerization reaction, add 0.144g of AIBN, heat up to 85 ° C, and keep warm for 4 hours; Acrylate polymer 7.9g; The obtained epoxy group-containing acrylate polymer is carried out 1 H NMR test, calculate the molar weight of epoxy group 0.56mmol / g.

[0050] Put 5g of epoxy group-containing acrylate polymer, 0.288g of die...

example 2

[0053] The 2,2'-azobisisobutyronitrile (AIBN) of 0.0025g is dissolved in the butyl acetate of 24.99g, puts into and is connected with condenser tube and N 2 Preheat the three-neck flask of the air blowing device to 75°C; add 15g of [N-methyl perfluorohexanesulfonamido] ethyl methacrylate, 7.5g of octadecyl acrylate, 27.5g of glycidyl acrylate, 3g of dodecyl mercaptan and 0.225g of AIBN were dissolved in 58.33g of butyl acetate, put into a constant pressure dropping funnel, and added dropwise to a three-necked flask, and the drop rate was controlled to make it drop in 4 hours; then under the protection of nitrogen, After 4 hours of polymerization, 0.025 g of AIBN was added, the temperature was raised to 85° C., and the temperature was kept for 12 hours; after the polymerization was completed, the polymerization product was precipitated with methanol, centrifuged, and vacuum-dried to obtain 49.5 g of epoxy-containing acrylate polymer. The obtained epoxy group-containing acrylate...

example 3

[0057] The 2,2'-azobisisobutyronitrile (AIBN) of 0.0113g is dissolved in the methyl ethyl ketone of 4.545g, puts into and is connected with condenser tube and N 2 Preheat the three-necked flask with gas blowing device to 55°C. 6.3g of [N-methyl perfluorobutanesulfonamido] ethyl acrylate, 3.78g of butyl acrylate, 2.52g of glycidyl methacrylate, 0.189g of dodecyl mercaptan, 0.1493g The AIBN was dissolved in 25.755g of methyl ethyl ketone, put into a constant pressure dropping funnel, and added dropwise to a three-necked flask, and the drop rate was controlled so that it would finish dropping within 4 hours. Under the protection of nitrogen, after the polymerization reaction for 4 hours, 0.0284 g of AIBN was added, the temperature was raised to 70° C., and the temperature was kept for 6 hours. After the polymerization reaction was completed, the polymerization product was precipitated by using a mixed solvent of methanol and petroleum ether, centrifuged, and vacuum-dried to obta...

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Abstract

The invention discloses a super-hydrophobic anti-icing coating with magnetocaloric properties and a preparation method thereof. The components of the coating and their mass percentage contents are: 20-68% of fluorine-containing acrylic epoxy resin, 19-69% of organic solvent %; 10-50% of inorganic particles, and the inorganic particles are magnetic particles or a mixture of magnetic particles and non-magnetic particles. Among them, fluorine-containing acrylic epoxy resin is formed by two-component reaction, one of which is composed of fluorine-containing acrylate monomer, hydrocarbon chain acrylate monomer and epoxy-containing acrylate monomer Obtained by free radical polymerization, the other group is polyamines or acid anhydrides. The coating of the present invention is environmentally friendly, has excellent weather resistance, chemical resistance, good adhesion between the coating and the substrate, and can be heated under an external alternating magnetic field or light conditions. The preparation process is simple and easy to operate, and can be used in Prevention and control of icing on surfaces such as communication lines.

Description

technical field [0001] The invention relates to a paint and a preparation method thereof, in particular to a magnetocaloric superhydrophobic anti-icing paint and a preparation method thereof. Background technique [0002] At the beginning of 2008, an ice and snow disaster hit dozens of provinces and regions in southern China, causing heavy damage to power transmission and communication equipment and railway transportation facilities in most parts of the south, seriously affecting the lives of the people, and the direct economic losses caused by the disaster reached 111.1 billion Yuan. Icing is a very common phenomenon in nature. Atmospheric icing of structures, such as icing of aircraft wings and shells, icing of wires, icing of warship decks, icing of masts and antennas, and icing of railway tracks, etc. common natural phenomenon. However, when this phenomenon is serious, it will interrupt the power transmission and communication lines and block the railway transportation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/10C09D133/14C09D133/16C09D133/08C09D7/12C08F220/18C08F220/38C08F220/32
Inventor 张庆华程甜甜詹晓力陈丰秋
Owner ZHEJIANG UNIV
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