Conductive super-hydrophobic paint and production method thereof

A technology of super-hydrophobic coatings and production methods, applied in conductive coatings, epoxy resin coatings, coatings, etc., can solve problems such as commercial products not appearing in the market, and achieve good solubility, large aspect ratio, phase Capacitive effect

Active Publication Date: 2012-06-13
中昊北方涂料工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current research is mainly focused on basic research, an

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 50g of xylene, 30g of n-hexane, and 120g of cyclohexanone mixed diluent to 50g of carbon nanotubes with a length of 20 microns and an aspect ratio greater than 150 times, disperse for 20 minutes with an ultrasonic disperser with a power of 20KHz, and disperse to form carbon nanotubes Predispersion.

[0034] Hydrophobic fumed silica modification process: 10 parts of commercially available fumed silica was ultrasonically dispersed in 90 parts of xylene for 30 minutes to make a 10% particle dispersion, and 12 parts of modifier (dodecafluoroheptyl Propyl siloxane) was added to 100 parts of the particle dispersion at a temperature of 45-65°C for 4 hours of modification reaction. After the reaction, the mixture was centrifuged and washed three times repeatedly. After centrifugation and vacuum drying, hydrophobic fumed silica was obtained.

[0035] Mix 120g of 50% cyclohexanone solution of epoxy E-44, 30g of hydrophobic fumed silica, 100g of xylene, 60g of n-hexane, and 2...

Embodiment 2

[0039] Add 50g of xylene, 30g of butyl acetate, and 240g of cyclohexanone mixed diluent to 80g of carbon nanotubes with a length of 10 microns and an aspect ratio greater than 150 times, and disperse for 20 minutes with an ultrasonic disperser with a power of 20KHz to form carbon nanotubes. tube of predispersion.

[0040] Hydrophobic fumed silica modification process: 10 parts of commercially available fumed silica was ultrasonically dispersed in 90 parts of xylene for 30 minutes to make a 10% particle dispersion, and 10 parts of modifier (dodecafluoroheptyl Propyl siloxane) was added to 100 parts of the particle dispersion at a temperature of 45-65°C for 4 hours of modification reaction. After the reaction, the mixture was centrifuged and washed three times repeatedly. After centrifugation and vacuum drying, hydrophobic fumed silica was obtained.

[0041] Mix 200g of 50% cyclohexanone solution of epoxy E-20, 20g of hydrophobic fumed silica, 30g of xylene, 15g of butyl acetat...

Embodiment 3

[0045] Add 80g of xylene, 40g of ethyl acetate, and 280g of cyclohexanone mixed diluent to 90g of carbon nanotubes with a length of 5 microns and an aspect ratio greater than 150 times, and disperse for 40 minutes with an ultrasonic disperser with a power of 20KHz to form carbon nanotubes. tube of predispersion.

[0046] Hydrophobic fumed silica modification process: 10 parts of commercially available fumed silica was dispersed ultrasonically in 90 parts of xylene for 30 minutes to make a 10% particle dispersion, and 8 parts of modifier (dodecafluoroheptyl Propyl siloxane) was added to 100 parts of the particle dispersion at a temperature of 45-65°C for 4 hours of modification reaction. After the reaction, the mixture was centrifuged and washed three times repeatedly. After centrifugation and vacuum drying, hydrophobic fumed silica was obtained.

[0047] Mix 240g of 50% cyclohexanone solution of epoxy E-20, 10g of hydrophobic fumed silica, 20g of xylene, 10g of n-hexane, and ...

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Abstract

The invention relates to conductive super-hydrophobic paint and a production method thereof, belonging to the field of special coating. The conductive super-hydrophobic paint comprises a component A and a component B which are separately packaged, wherein the component A comprises epoxy resin, carbon nano tube, hydrophobic gas-phase silicon dioxide and diluent, and the component B is polyamide curing agent. The hydrophobic gas-phase silicon dioxide is spherical nano particle and has a micro structure different from the carbon nano tube, and a more uniform super-hydrophobic surface is obtainedafter the synergy of the hydrophobic gas-phase silicon dioxide and the carbon nano tube. The conductive super-hydrophobic paint provided by the invention has a static water contact angle more than 150 degrees and a slide angle of less than 10 degrees, thus a coated surface has self-cleaning property, anti-pollution property and conductivity.

Description

technical field [0001] The invention relates to a special paint, in particular to a conductive super-hydrophobic paint and a production method thereof. Background technique [0002] Superhydrophobic conductive coating belongs to special coating technology. It is generally believed that superhydrophobic refers to the treated surface, which has a static contact angle of more than 150 degrees and a sliding angle of less than 10 degrees to water. The superhydrophobic surface has self-cleaning, anti-pollution and other properties, and can prevent frost, ice and fog on the surface. There is no doubt that these treatments have a wide range of application values ​​in engineering. At present, it is not difficult to obtain a static water contact angle exceeding 90 degrees or 120 degrees in engineering, and the surface can be coated with fluorocarbons to achieve a higher water contact angle. In recent years, with the development of nanotechnology and the understanding of the "lotus l...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12C09D5/24
Inventor 李博文谈珍田永丰孟军锋杨茂林南燕孙哲
Owner 中昊北方涂料工业研究设计院有限公司
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