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Polymer ice-coating-preventing coating containing modified nano particles and preparing method thereof

A nano-particle and anti-icing technology, which is applied in polyurea/polyurethane coatings, epoxy resin coatings, coatings, etc., can solve the problems of cumbersome technology and high cost, and achieve simple preparation process, anti-icing effect, and easy construction undemanding effects

Inactive Publication Date: 2014-01-01
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of the above-mentioned prior art, the purpose of the present invention is to prepare a superhydrophobic anti-icing coating, which has a simple preparation process and is easy to operate, and can overcome the high cost, cumbersome technology, and small size of the general superhydrophobic coating method. Due to the disadvantages such as area use, the coating can achieve the super-hydrophobic anti-icing effect by using conventional spraying methods

Method used

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  • Polymer ice-coating-preventing coating containing modified nano particles and preparing method thereof
  • Polymer ice-coating-preventing coating containing modified nano particles and preparing method thereof
  • Polymer ice-coating-preventing coating containing modified nano particles and preparing method thereof

Examples

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Effect test

Embodiment 1

[0035] Weigh 0.8g of perfluorodecyltrimethoxysilane, 55ml of absolute ethanol, 15ml of deionized water, and 0.6ml of glacial acetic acid, add them into a 150ml ground-mouth Erlenmeyer flask, stir at room temperature for 1.5h, and obtain raw material A for later use; weigh Add 1g of silicon dioxide with a particle size of 50nm, 55ml of absolute ethanol, and 15ml of deionized water into a 250ml single-necked round-bottomed flask. , use a constant pressure dropping funnel to slowly drop the above standby perfluorodecyltrimethoxysilane solution into the flask from the top of the condenser tube, and stop the reaction after stirring at a constant temperature of 85°C for 20h; Centrifuge for 5 minutes, ultrasonically clean the precipitate with absolute ethanol for 20 seconds, then centrifuge at 10,000 r / min for 5 minutes, repeat the "ultrasonic-centrifugation" three times in sequence, collect the precipitate, and dry it in vacuum at 50°C for 24 hours to obtain modified nano-silica;

...

Embodiment 2

[0043] Weigh 0.9g of perfluorodecyltrimethoxysilane, 60ml of absolute ethanol, 20ml of deionized water, and 0.5ml of glacial acetic acid, add them into a 150ml ground-mouth Erlenmeyer flask, stir at room temperature for 2 hours, and set aside; weigh the particle size to 30nm Add 1g of titanium dioxide, 60ml of absolute ethanol, and 20ml of deionized water into a 250ml single-necked round bottom flask. After ultrasonic dispersion for 1 hour, install a condenser tube. Slowly add the spare perfluorodecyltrimethoxysilane solution dropwise into the flask from the top of the condenser tube, and stop the reaction after stirring at a constant temperature of 80°C for 24 hours; centrifuge the emulsion obtained from the reaction at 12000r / min for 5min, and remove the precipitate with Ultrasonic cleaning with anhydrous ethanol for 20s, then centrifugation at 12000r / min for 5min, repeating "ultrasonic-centrifugation" three times in sequence, collecting the precipitate, vacuum drying at 60°C...

Embodiment 3

[0048] Weigh 1g of perfluorodecyltrimethoxysilane, 58ml of absolute ethanol, 18ml of deionized water, and 0.5ml of glacial acetic acid, add them into a 150ml ground-mouth Erlenmeyer flask, stir at room temperature for 2h, and set aside; Add 1g of zirconium dioxide, 58ml of absolute ethanol, and 18ml of deionized water into a 250ml single-necked round bottom flask. After ultrasonic dispersion for 1 hour, install a condenser tube. Slowly add the above standby perfluorodecyltrimethoxysilane solution dropwise from the funnel to the flask from the top of the condenser tube, and stop the reaction after stirring at a constant temperature of 75°C for 24 hours; centrifuge the emulsion obtained from the reaction at 11000r / min for 5min, and remove the precipitate Ultrasonic cleaning with absolute ethanol for 20s, and centrifugation at 11000r / min for 5min, repeating "ultrasonic-centrifugation" three times in sequence, collecting the precipitate, vacuum drying at 65°C for 24h to obtain modi...

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Abstract

The invention discloses a polymer ice-coating-preventing coating containing modified nano particles and a preparing method of the polymer ice-coating-preventing coating containing modified nano particles. The ice-coating-preventing coating comprises, by mass, 1-15% of silicone oil, 1-40% of modified nano particle with the particle diameter of 10-100nm, 15-75% of monomer or prepolymer used for bonding, 1-12% of hydrophobic resin, 1-30% of curing agent and 10-80% of thinning agent. The preparing method of the polymer ice-coating-preventing coating includes the steps that preparing of the modified nano particles is performed, preparing of the hydrophobic resin is performed, and the modified nano particles, the hydrophobic resin, the monomers or the prepolymers used for bonding, the curing agents, the thinning agent and silicone oil are evenly mixed to obtain the coating. The polymer ice-coating-preventing coating containing modified nano particles and the preparing method of the polymer ice-coating-preventing coating containing the modified nano particles have the advantages that raw materials for preparing the coating are easy to get, the process is simple, operation is convenient to carry out, a coating layer prepared by spraying the coating on a metal or glass substrate has a contact angle of 160 degrees in static water under a normal temperature and a low temperature, has a rolling angle of 4 degrees and has the good ice-coating-preventing effect.

Description

technical field [0001] The invention relates to the technical field of anti-icing coatings and applications, in particular to polymer anti-icing coatings containing modified nanoparticles and a preparation method thereof. Background technique [0002] Icing of power transmission lines is a common phenomenon in Russia, Canada, the United States, Japan, the United Kingdom, Finland, Iceland, and the alpine regions of northern and midwestern my country. Line icing often causes major accidents such as downed poles, disconnection and insulator flashover of transmission lines, which seriously threatens the safe operation of power systems. my country is one of the countries with serious icing on transmission lines, and the probability of line ice damage accidents ranks among the highest in the world. [0003] Anti-icing and de-icing measures for high-voltage transmission lines can be summarized as: thermal anti-icing and de-icing methods that rely solely on additional heat sources ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D4/06C09D163/00C09D175/04C09D175/14C09D133/16C09D183/04C09D183/05C09D183/06C09D7/12C09D5/00C08F220/22C08F220/14
Inventor 张志成冯野峰曹远莼
Owner XI AN JIAOTONG UNIV
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