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A preparation method for the surface of anti-icing silicone rubber composite material

A composite material and silicone rubber technology is applied in the field of preparation of anti-icing surfaces, which can solve the problems of poor durability, time-consuming and labor-intensive deicing, and achieve the effect of reducing deliquescence and freezing temperature.

Active Publication Date: 2018-06-01
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the deicing method removes the ice after the icing has occurred, which cannot avoid the occurrence of icing, and deicing is time-consuming, labor-intensive, and energy-consuming.
Although the superhydrophobic coating anti-icing method can prevent the occurrence of ice coating in time, the superhydrophobic surface often has fatal defects such as poor mechanical stability and poor durability, which makes this kind of material unable to obtain practical applications.

Method used

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  • A preparation method for the surface of anti-icing silicone rubber composite material
  • A preparation method for the surface of anti-icing silicone rubber composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Preparation of modified potassium chloride particles: Dissolve 300 g of commercially available analytically pure potassium chloride in 500 ML deionized water at 60-80 °C, filter while hot to obtain a saturated potassium chloride aqueous solution, and use a volumetric flask to volume , keep warm and set aside; under mechanical stirring, disperse 50 g of commercially available diatomite in 1000 ML acetone through a 200-mesh stainless steel sampling sieve, then add 5 g of emulsifier OP-10, and continue stirring for 30 min; saturate the above potassium chloride The pH value of the solution was adjusted to 1 with concentrated hydrochloric acid, and then added to the above-mentioned acetone dispersion in 5 times within 10 minutes. After the addition was completed, the stirring was continued for 2 h to obtain a mixed solution; 10 g of nano-silica powder was added to the In the mixed solution obtained in the third step, continue to mechanically stir for 30 minutes, then filter u...

Embodiment 2

[0027] Preparation of modified potassium chloride particles: Dissolve 300 g of commercially available analytically pure potassium chloride in 500 ML deionized water at 60-80 °C, filter while hot to obtain a saturated potassium chloride aqueous solution, and use a volumetric flask to volume , keep warm and set aside; under mechanical stirring, disperse 50 g of commercially available diatomite in 1000 ML acetone through a 200-mesh stainless steel sampling sieve, then add 5 g of emulsifier OP-10, and continue stirring for 30 min; saturate the above potassium chloride The pH value of the solution was adjusted to 1 with concentrated hydrochloric acid, and then added to the above-mentioned acetone dispersion in 5 times within 10 minutes. After the addition was completed, the stirring was continued for 2 h to obtain a mixed solution; 10 g of nano-silica powder was added to the In the mixed solution obtained in the third step, continue to mechanically stir for 30 minutes, then filter u...

Embodiment 3

[0032]Preparation of modified potassium chloride particles: Dissolve 300 g of commercially available analytically pure potassium chloride in 500 ML deionized water at 60-80 °C, filter while hot to obtain a saturated potassium chloride aqueous solution, and use a volumetric flask to volume , keep warm and set aside; under mechanical stirring, disperse 50 g of commercially available diatomite in 1000 ML acetone through a 200-mesh stainless steel sampling sieve, then add 5 g of emulsifier OP-10, and continue stirring for 30 min; saturate the above potassium chloride The pH value of the solution was adjusted to 1 with concentrated hydrochloric acid, and then added to the above-mentioned acetone dispersion in 5 times within 10 minutes. After the addition was completed, the stirring was continued for 2 h to obtain a mixed solution; 10 g of nano-silica powder was added to the In the mixed solution obtained in the third step, continue to mechanically stir for 30 minutes, then filter un...

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Abstract

The invention describes a method for preparing the surface of an anti-icing silicone rubber composite material. Mix potassium chloride, silica and diatomaceous earth particles in acetone to obtain modified potassium chloride powder filler, and then mix the modified potassium chloride powder filler with α,ω-dihydroxypolydimethylsiloxane , the curing agent tetraethoxysilane and the solvent n-hexane are mixed evenly by ball milling, then the catalyst di-n-butyltin dilaurate is added and ball milling is continued; the uniformly mixed suspension is cast on a glass plate to form a film, and the silicone rubber composite material is obtained by curing at room temperature. After the surface of this silicone rubber composite material is simply polished, it has anti-icing performance, which can significantly reduce the amount of ice on the surface under freezing conditions, by more than 91% at most, and after 10 cycles, it can still reduce the amount of ice by more than 83%. The preparation method of the surface of the anti-icing silicone rubber composite material of the present invention is simple, the raw material source is widely used, the price is cheap, the anti-icing performance is remarkable and can be recycled, and can be used for anti-icing on the surface of building materials or the surface of important facilities.

Description

technical field [0001] The invention relates to a method for preparing the surface of an anti-icing silicone rubber composite material, in particular to a method for preparing an anti-icing surface combined with modified potassium chloride filler and a silicon rubber matrix. Background technique [0002] After the surface of the aircraft is icy, the aerodynamic performance deteriorates, the drag increases, the lift decreases, and the engine power decreases, which directly affects flight safety in severe cases. In the power industry, high-voltage cables freeze to increase the weight of the cables, and the towers will fall after weighing more than the poles. Ice-covered insulators will cause ice flash accidents, which directly affect the safe operation of the power system. After the expressway pavement freezes, the anti-skid ability of the pavement will be greatly reduced, which will significantly reduce the maneuverability and driving safety of motor vehicles. Anti-icing tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/00C08L83/06C08K3/16C08K3/36
Inventor 王法军王鹏杨超
Owner NANCHANG HANGKONG UNIVERSITY
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