Method for preparing sprayable super-hydrophobic coating with heat storage capacity

A technology of super-hydrophobic coating and heat storage capacity, which is applied in coatings, anti-corrosion coatings, and devices for coating liquids on the surface, and can solve problems such as lack of wear resistance

Active Publication Date: 2020-07-07
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above studies are all superhydrophobic energy storage materials with a core-shell structure prepared through complex processes, and the test of superhydrophobic performance is limited to the contact angle...

Method used

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  • Method for preparing sprayable super-hydrophobic coating with heat storage capacity
  • Method for preparing sprayable super-hydrophobic coating with heat storage capacity
  • Method for preparing sprayable super-hydrophobic coating with heat storage capacity

Examples

Experimental program
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Effect test

Embodiment 1

[0055] (1) Preparation of polydivinylbenzene nanotubes

[0056] Referring to the above-mentioned cationic polymerization method, under the condition of 25°C, add 117g cyclohexane (99%) and 2.337g divinylbenzene successively into a 250mL three-necked flask equipped with electric stirring, and pass inert gas (nitrogen or argon) After stirring for 15 minutes, add 0.15 g of boron trifluoride diethyl ether (98%) dropwise to the there-necked flask (the dropping time is 10 seconds), and increase the stirring speed to 400 r / min at the same time, and react for 5 minutes. Transfer the resulting suspension to a beaker, and after the polymer settles, pour the supernatant into a waste liquid bucket, wash the obtained product repeatedly with absolute ethanol to remove the solvent and initiator, and obtain the product after suction filtration. The final collected product is dried in an oven to obtain the cross-linked polystyrene nanotube.

[0057] figure 2 It is a photo obtained by scanni...

Embodiment 2

[0076] (1) Preparation of poly(styrene-divinylbenzene) nanotubes

[0077] At 25°C, add 117g of cyclohexane (99%), 2.337g of divinylbenzene, and 0.5g of styrene to a 250mL three-necked flask equipped with electric stirring, and pass in an inert gas (nitrogen or argon) After stirring for 15 minutes, 0.15 g of boron trifluoride diethyl ether (98%) was added dropwise to the three-necked flask (the dropping time was 10 seconds), and the stirring speed was increased to 400 r / min at the same time, and the reaction was carried out for 5 minutes. Transfer the resulting suspension to a beaker, and after the polymer settles, pour the supernatant into a waste liquid bucket, wash the obtained product repeatedly with absolute ethanol to remove the solvent and initiator, and obtain the product after suction filtration. The finally collected product is dried in an oven to obtain poly(styrene-divinylbenzene) nanotubes.

[0078] (2) The preparation of mesoporous poly(styrene-divinylbenzene) na...

Embodiment 3

[0082] (1) The preparation of polydivinylbenzene nanotube is with embodiment 1 step (1);

[0083] (2) The preparation of mesoporous polydivinylbenzene nanotubes is the same as that of Example 1 step (2);

[0084] (3) Preparation of superhydrophobic silica nanospheres

[0085] Disperse 20g of silica nanospheres (10-20nm) in a beaker filled with 2370g of absolute ethanol, place the beaker bottle in an ultrasonic cleaner, perform ultrasonic treatment at 100W for 1h, and transfer the reaction system to a machine equipped with In a stirred 5L reactor, stir until the silica nanospheres are evenly dispersed, then add 1.08g of distilled water, 0.34g of ammonia water (28%) and 11.35g of perfluorooctyltrimethoxysilane (98%) into the reactor , react at room temperature for 12 hours, centrifuge to obtain superhydrophobic silica nanospheres, wash the product three times with ethanol, and vacuum dry to obtain superhydrophobic silica nanospheres powder.

[0086] (4) The preparation of the ...

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Abstract

The invention relates to a method for preparing a sprayable super-hydrophobic coating with heat storage capacity. According to the method, mesoporous crosslinked polystyrene nanotubes and fluorated silicon dioxide pellets are dispersed into the volatile solvent dissolved with a tackiness agent and a phase-change material, and a blended spinning solution is sprayed onto a substrate material with aone-step method. By adoption of the method, the super-hydrophobic energy storage coating is prepared through the one-step spraying method, and the process of preparing composite phase-change materialsis omitted; and moreover, the heat storage capacity and super-hydrophobic performance are excellent, and a new road is opened up for practical preparation applications of the super-hydrophobic energystorage coating.

Description

technical field [0001] The technical solution of the present invention relates to the field of organic, inorganic and polymer materials, in particular to a method for preparing a sprayable superhydrophobic coating with heat storage capacity. Background technique [0002] With the continuous development of social economy and the continuous increase of human demand for energy, the depletion of fossil energy is inevitable (Sternberg A, Bardow A. Power-to-What? – Environmental assessment of energy storage systems [J]. Energy & Environmental Science, 2015, 8:389-400.). In order to cope with the depletion of fossil energy, diversified clean energy and renewable energy play an important role in the sustainable development of economy and society. Nowadays, as a clean energy management medium, phase change materials have attracted extensive attention due to their excellent thermal management ability. Phase change materials can absorb heat from the environment or release heat to the...

Claims

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Application Information

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IPC IPC(8): B05D5/08C09D4/04C09D4/06C09D5/08C09D7/62C09D7/65
CPCB05D5/08C09D4/06C09D5/08C09D7/62C09D7/70C09D7/65B05D2504/00B05D2518/00B05D2506/20B05D2502/00B05D2320/00B05D2301/00
Inventor 王小梅孔令勃张旭
Owner HEBEI UNIV OF TECH
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