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Liquid-filled porous silicon resin anti-icing material and preparation method thereof

A porous silicon and anti-icing technology, applied in the field of materials, can solve the problems of high material selectivity, complicated preparation methods, unsuitable for industrialized practical applications, etc., achieve low ice adhesion, delay the formation of ice layers, reduce The effect of adhesion

Active Publication Date: 2014-12-17
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common preparation methods for porous structures include photolithographic template method, inverted colloidal crystal method, microphase separation method, etc. These methods may require special equipment, or the preparation methods are complicated, or have high selectivity to materials, and are not suitable for industrial practical applications.

Method used

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  • Liquid-filled porous silicon resin anti-icing material and preparation method thereof
  • Liquid-filled porous silicon resin anti-icing material and preparation method thereof
  • Liquid-filled porous silicon resin anti-icing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Preparation of porous silicone resin

[0042] A certain mass of polystyrene nanoparticles (average particle diameter of 500nm) was added to a 10% sodium silicate aqueous solution (the mass ratio of polystyrene to sodium silicate was 1:1), and after mixing evenly, Add 0.1mol / L hydrochloric acid aqueous solution (the volume ratio of hydrochloric acid aqueous solution to the mixed solution is 1:20), and then directly coat the solution on the surface of the copper sheet. After the solution is dried and solidified, put it into a muffle furnace and raise the temperature to 800°C for ablation After 30 minutes, take out the copper sheet after cooling down to obtain a copper sheet with porous silicone resin on the surface.

[0043] (2) Surface chemical modification of porous silicone resin

[0044] The copper sheet with porous silicone resin on the surface obtained in step (1) was placed in an airtight container containing trifluoroethyltrimethoxysilane for 24 hours to obta...

Embodiment 2

[0050] (1) Preparation of porous silicone resin

[0051] A certain mass of polymethyl methacrylate nanoparticles (average particle diameter is 400nm) was added to a 20% mass fraction of methyl orthosilicate / methanol solution (polymethyl methacrylate and methyl orthosilicate The mass ratio is 1:2), after mixing evenly, add 0.3mol / L sulfuric acid aqueous solution (the volume ratio of sulfuric acid aqueous solution to the mixed solution is 1:10), and then directly coat the solution on the surface of the iron sheet, and wait for the solution to dry and solidify Put it into a muffle furnace and raise the temperature to 300°C for ablation for 1200 minutes. After cooling down, take out the iron sheet to obtain an iron sheet with porous silicone resin on the surface.

[0052] (2) Surface chemical modification of porous silicone resin

[0053] Place the copper sheet with porous silicone resin on the surface prepared in step (1) in an airtight container containing trifluoroethyltrietho...

Embodiment 3

[0058] (1) Preparation of porous silicone resin

[0059] A certain mass of nanocellulose (average particle size is 300nm) is added to a 40% tetraethyl orthosilicate / ethanol solution (the mass ratio of nanocellulose to tetraethyl orthosilicate is 1:4), After mixing evenly, add 0.5mol / L nitric acid aqueous solution (the volume ratio of nitric acid aqueous solution to the mixed solution is 1:30), then directly coat the solution on the surface of the glass sheet, and put it into the muffle furnace to heat up to Ablation at 500°C for 800 min, and after cooling down, take out the iron sheet to obtain a glass sheet with porous silicone resin on the surface.

[0060] (2) Surface chemical modification of porous silicone resin

[0061] The glass sheet with porous silicone resin on the surface prepared in step (1) is soaked in a methanol solution of 1% hexafluorobutyltrimethoxysilane by mass fraction for 6h to obtain a glass sheet of porous silicone resin with surface chemical modificat...

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Abstract

The invention discloses a liquid-filled porous silicon resin anti-icing material and a preparation method thereof. A fluorosilane-modified porous silicon resin and fluorine-containing liquid composite layer is combined on a base material of the liquid-filled porous silicon resin anti-icing material, wherein the fluorine-containing liquid is filled in the fluorosilane-modified porous silicon resin, and the porous silicon resin is obtained by uniformly mixing an inorganic silicon or organic silicon raw material, a catalyst solution and organic nanoparticle in a solvent to form a mixed solution, directly coating the mixed solution on the surface of the base material, and removing the organic nanoparticle after drying and curing the coating; the fluorine-containing liquid is selected from one or two of liquid perfluorocarbon and liquid fluorosilicone; the fluorine-containing liquid has a viscosity range of 0.1-500cm<2> / s at the room temperature; and the average particle size of the organic nanoparticle is 50-800nm. When the environment temperature and the environment humidity can cause the base material to ice, the surface of the liquid-filled porous silicon resin can prevent subcooled water from contacting the base material, and a liquid lubricating material can be used for greatly descending the adhesive power of the ice layer and is easy to separate from the surface under the action of gravity or wind power. The liquid-filled porous silicon resin anti-icing material can be efficiently acted under the weather conditions such as the environment temperature of 0 to -40 DEG C and the environment humidity of 40%-90%.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a liquid-filled porous silicone resin anti-icing material and a preparation method thereof. Background technique [0002] Icing is very common in nature and widely exists on various low-temperature surfaces, such as outdoors in cold winter and the surface of evaporators of various refrigeration systems and refrigeration equipment. Icing has brought many energy and safety problems. For example, icing will cause the heat transfer efficiency of the refrigeration equipment to drop significantly or even fail; severe icing will cause the aircraft to crash in the air, and the ecological environment, transportation, and power facilities will be greatly damaged. Usually, the deicing process takes a lot of manpower, material resources and financial resources. Therefore, how to effectively solve or alleviate the problem of icing on cold surfaces, reduce anti-icing energy cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
Inventor 吴俊杰周舟刘凯龚尚昆冯兵何铁祥
Owner STATE GRID CORP OF CHINA
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