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Flexible flexional active-deicing super-hydrophobic anti-ice-coating composite material and preparation method and application thereof

A composite material and anti-icing technology, applied in the field of anti-icing materials, can solve the problems of reduced anti-icing effect of super-hydrophobic surface, easily damaged rough structure, difficult to achieve large-area preparation, etc., and achieves easy operation and simple preparation method. , the effect of easy control

Active Publication Date: 2019-09-06
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But superhydrophobic surface also has some problems, such as: because the rough structure of superhydrophobic surface is easily damaged, the anti-icing effect of superhydrophobic surface will decline ([Kulinich S A, Farhadi S, Nose K, et al.Superhydrophobic Surfaces: Are They Really Ice-Repellent[J].LANGMUIR,2011,27(1),25-29; Nosonovsky M,Hejazi V.Why Superhydrophobic Surfaces Are Not Always Icephobic[J].ACS NANO,2012,6(10),8488-8419] )
In addition, the existing superhydrophobic anti-icing materials have complicated preparation process, high cost, difficulty in large-area preparation, and single function when used as an anti-icing surface, making it difficult to achieve an ideal anti-icing effect

Method used

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  • Flexible flexional active-deicing super-hydrophobic anti-ice-coating composite material and preparation method and application thereof
  • Flexible flexional active-deicing super-hydrophobic anti-ice-coating composite material and preparation method and application thereof
  • Flexible flexional active-deicing super-hydrophobic anti-ice-coating composite material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Weigh 10 g of room temperature vulcanized liquid silicone rubber (SR, brand #107, produced by Jinan Duoweiqiao Chemical Co., Ltd.), add 3 ml of n-hexane, and stir well; production, purity: 98%) as curing agent, add 0.5 milliliters of dibutyltin dilaurate (produced by Shanghai McLean Biochemical Co., Ltd., purity: 98%) as catalyst, stir evenly, the mixture is poured into the cavity volume and is 100mm * 100mm ×3mm polytetrafluoroethylene (PTFE) mold, put it in a vacuum oven and evacuate it for 10 minutes to remove air bubbles, take it out and put it in a blast drying oven at 50°C for 40 minutes, wait for the surface to enter a semi-cured state, and obtain a semi-cured Cured silicone rubber; take by weighing 20 mg of carboxylated multi-walled carbon nanotubes (CNTs, produced by Nanjing Xianfeng Nano Material Technology Co., Ltd., average diameter: 100 nm, length: 10-20 microns, purity: 95%), silicon carbide micropowder (SiC, produced by Shandong Jinmeng New Material Compa...

Embodiment 2

[0043] Weigh 10 grams of room temperature vulcanized liquid silicone rubber (SR, grade #107), add 3 milliliters of n-hexane, and stir well; add 1 milliliter of tetraethyl orthosilicate as curing agent, add 0.5 milliliters of dibutyltin dilaurate as catalyst, and stir Evenly, pour the mixture into a polytetrafluoroethylene (PTFE) mold with a cavity volume of 100mm×100mm×3mm, put it in a vacuum oven and evacuate it for 10 minutes to remove air bubbles, take it out and put it in a blast drying oven at 50°C Place in the middle for 40min, wait for the surface to enter the semi-cured state; weigh carboxylated multi-walled carbon nanotubes (average diameter: 100 nanometers, length: 10-20 microns, purity: 95%) 20 mg, silicon carbide micropowder 10 mg, add to In 100 ml of absolute ethanol, add 2 ml of ethyl orthosilicate, 100 microliters of perfluorodecyltrimethoxysilane, and ultrasonically disperse for 30 minutes to obtain a suspension; use a spray gun to vertically Spray on the semi-...

Embodiment 3

[0048] Weigh 10 grams of room temperature vulcanized liquid silicone rubber (SR, grade #107), add 3 milliliters of n-hexane, and stir well; add 1 milliliter of tetraethyl orthosilicate as curing agent, add 0.5 milliliters of dibutyltin dilaurate as catalyst, and stir Uniform; pour the mixture into a polytetrafluoroethylene (PTFE) mold with a cavity volume of 100mm×100mm×3mm, put it in a vacuum oven and evacuate it for 10 minutes to remove air bubbles, take it out and put it in a blast drying oven at 50°C Place in the middle for 40min, wait for the surface to enter a semi-cured state; weigh carboxylated multi-walled carbon nanotubes (average diameter: 100 nanometers, length: 10-20 microns, purity: 95%) 20 mg, silicon carbide micropowder 100 mg, add to In 100 ml of absolute ethanol, add 2 ml of ethyl orthosilicate, 100 microliters of perfluorodecyltrimethoxysilane, and ultrasonically disperse for 30 minutes to obtain a suspension; use a spray gun to vertically Spray on the semi-...

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Abstract

The invention belongs to the technical field of anti-ice-coating materials, and discloses a flexible flexional active-deicing super-hydrophobic anti-ice-coating composite material and a preparation method and application thereof. The anti-ice-coating composite material is prepared from a room-temperature vulcanized liquid silicone rubber matrix and a micro-nano material; the room-temperature vulcanized liquid silicone rubber matrix is prepared from room-temperature vulcanized liquid silicone rubber, an organic solvent, a curing agent and a catalyst, and the micro-nano material is composed of an inorganic micro powder, carbon nanotubes, a polar organic solvent and a water repellent agent; the anti-ice-coating composite material is in the organic solvent, the room-temperature vulcanized liquid silicone rubber is semi-cured under the effect of the catalyst and one part of the curing agent, and a semi-cured silicone rubber matrix is obtained; then the micro-nano material is mixed evenly with the remaining curing agent, and the mixture is sprayed on the surface of the semi-cured silicone rubber matrix and dried to obtain the anti-ice-coating composite material. The anti-ice-coating composite material is flexional, photothermal active deicing is combined with superhydrophobic ice coating prevention, the anti-ice-coating effect is significant, and the material is used in the anti-ice-coating field.

Description

technical field [0001] The invention belongs to the technical field of anti-icing materials, and in particular relates to a flexible, bendable and active deicing super-hydrophobic anti-icing composite material and its preparation method and application. Background technique [0002] The occurrence and accumulation of icing and icing in low-temperature and high-humidity environments will cause serious damage to industries such as road traffic, electric power transportation, air transportation, and wind power generation, and even endanger lives and cause serious property losses. In the electric transportation industry, the damage caused by icing is particularly significant. Ice piles add enormous weight to wires, causing wires to break, towers to twist, and even collapse. For surface icing and icing, traditional deicing methods are mainly active thermal ice melting and mechanical deicing. These methods are difficult to operate, have high energy consumption, and are likely to...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08K13/02C08K3/04C08K3/34C08K5/5415C08K5/5419
CPCC08K3/34C08K5/5415C08K5/5419C08K13/02C08K2201/011C08K3/041C08L83/04
Inventor 蒋果陈梁
Owner SOUTH CHINA UNIV OF TECH
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