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Preparation method for anti-icing silicone rubber composite material surface

A composite material and silicone rubber technology, which is applied in the field of anti-icing surface preparation, can solve problems such as poor durability, time-consuming deicing, and poor mechanical stability of super-hydrophobic surfaces, and achieve the effect of reducing deliquescence and freezing temperature

Active Publication Date: 2015-07-29
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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  • Preparation method for anti-icing silicone rubber composite material surface
  • Preparation method for anti-icing silicone rubber composite material surface

Examples

Experimental program
Comparison scheme
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 for later use; under mechanical stirring, disperse 50 g of commercially available diatomite in 1000 ML of acetone through a 200-mesh stainless steel sampling sieve, then add 5 g of emulsifier OP-10, and keep stirring for 30 min; Adjust the pH value of the saturated solution to 1 with concentrated hydrochloric acid, and then add it to the above-mentioned acetone dispersion in 5 times within 10 minutes, and continue to stir for 2 h after the addition to obtain a mixed solution; add 10 g of nano-silica powder to Into the mixed solution obtained in the third step, continue mechanical stirring for 30 min, and then filter under reduced pressure, and dry the obtained filter cake at 150°C...

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 for later use; under mechanical stirring, disperse 50 g of commercially available diatomite in 1000 ML of acetone through a 200-mesh stainless steel sampling sieve, then add 5 g of emulsifier OP-10, and keep stirring for 30 min; Adjust the pH value of the saturated solution to 1 with concentrated hydrochloric acid, and then add it to the above-mentioned acetone dispersion in 5 times within 10 minutes, and continue to stir for 2 h after the addition to obtain a mixed solution; add 10 g of nano-silica powder to Into the mixed solution obtained in the third step, continue mechanical stirring for 30 min, and then filter under reduced pressure, and dry the obtained filter cake at 150°C...

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 for later use; under mechanical stirring, disperse 50 g of commercially available diatomite in 1000 ML of acetone through a 200-mesh stainless steel sampling sieve, then add 5 g of emulsifier OP-10, and keep stirring for 30 min; Adjust the pH value of the saturated solution to 1 with concentrated hydrochloric acid, and then add it to the above-mentioned acetone dispersion in 5 times within 10 minutes, and continue to stir for 2 h after the addition to obtain a mixed solution; add 10 g of nano-silica powder to Into the mixed solution obtained in the third step, continue mechanical stirring for 30 min, and then filter under reduced pressure, and dry the obtained filter cake at 150°C ...

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Abstract

The invention discloses a preparation method for an anti-icing silicone rubber composite material surface. The preparation method comprises the following steps of firstly, mixing potassium chloride, silicon dioxide and diatomite particles in acetone to obtain modified potassium chloride powder filler; secondly, performing ball milling and uniformly mixing on the modified potassium chloride powder filler and alpha, omega-dihydroxyl polydimethylsiloxane, tetraethoxysilane as a curing agent and normal hexane as solvent, adding di-n-butyltin dilaurate as a catalyst and then continuously performing ball milling; casting uniformly-mixed suspension on a glass sheet to form a film; curing at room temperature to obtain a silicone rubber composite material. The silicone rubber composite material surface is simply polished to obtain the anti-icing performance, and further the surface ice-coating amount under the icing condition can be remarkably reduced by at most over 91 percent; after the cycle for 10 times, the ice-coating amount can still be at most reduced by over 83 percent. The preparation method for the anti-icing silicone rubber composite material surface, disclosed by the invention, is simple; used raw materials are wide in source and low in price; the anti-icing silicone rubber composite material surface is remarkable in anti-icing performance, can be recycled and can be used for preventing the icing on the surfaces of building materials or the surfaces 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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IPC IPC(8): C08J7/00C08L83/06C08K3/16C08K3/36
Inventor 王法军王鹏杨超
Owner NANCHANG HANGKONG UNIVERSITY
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