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Spray preparation method of industrialized and anti-stripping largesuper-hydrophobic surface

A super-hydrophobic surface and super-hydrophobic coating technology, which is applied to the surface coating device, special surface, coating, etc., can solve the problems of poor anti-stripping performance and unstable anti-stripping performance of super-hydrophobic coatings. Achieve excellent anti-stripping performance, improve coating utilization, and stabilize superhydrophobic performance

Active Publication Date: 2019-04-12
承德纳森新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the large-area super-hydrophobic surface single-nozzle spraying preparation process, the epoxy resin changes from the "semi-cured" state to the "cured" state due to the long spraying time, resulting in poor peeling resistance and peeling resistance of the superhydrophobic coating. Unstable problem, the present invention proposes a spray coating preparation method for industrialized anti-stripping large-area super-hydrophobic surface

Method used

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  • Spray preparation method of industrialized and anti-stripping largesuper-hydrophobic surface
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  • Spray preparation method of industrialized and anti-stripping largesuper-hydrophobic surface

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preparation example Construction

[0061] see Figure 4 Shown, the spray coating preparation method of a kind of industrialization anti-stripping large-area super-hydrophobic surface of the present invention, comprises the following steps:

[0062] Step 1, with epoxy resin solution

[0063] 8-80g of bisphenol A epoxy resin (E51), 2-20g of curing agent (T31) and the balance of acetone are required to prepare 1kg of epoxy resin solution, for use;

[0064] In the present invention, the curing agent is matched with the bisphenol A epoxy resin, that is, the traditional curing agent.

[0065] Step 2, mix hydrophobic coating solution

[0066] Prepare hydrophobic nano-silica particles of 1-50 nm and acetone into a hydrophobic coating solution with a concentration of 1-10 wt% (mass percentage), and set aside;

[0067] Step 3, epoxy resin coating preparation

[0068] Step 31, assemble the base body 2 with the four fixtures (2A, 2B, 2C, 2D), and then assemble the jacking screws on the fixtures, and adjust the balance ...

Embodiment 1

[0079] Industrial production 0.8m×0.8m( Figure 1B The dotted line a×b above, a is the length of the sprayed area on the substrate, and b is the width of the sprayed area on the substrate) Large-area super-hydrophobic coating

[0080] Embodiment 1 selects the glass substrate (5mm thickness) of 0.8m * 0.8m to carry out sodium dodecylbenzene sulfonate aqueous solution (1wt%) cleaning, then rinses with pure water, obtains clean substrate;

[0081] Step 1, with epoxy resin solution

[0082] Prepare 60g of bisphenol A epoxy resin (E51), 12g of curing agent (T31) and the balance of acetone for 1kg of epoxy resin liquid, and set aside;

[0083] Step 2, mix hydrophobic coating solution

[0084] The hydrophobic nano-silica particles and acetone with the industrial grade of R974 are prepared as a hydrophobic coating solution with a concentration of 5wt% (mass percentage), for use;

[0085] Step 3, epoxy resin coating preparation

[0086] Step 31, assemble the clean substrate 2 with ...

Embodiment 2

[0100] Industrial production of 1.0m×0.8m large-area super-hydrophobic coating

[0101] The aluminum plate substrate (2mm thickness) of 1.0m * 0.8m selected in embodiment 1 is cleaned with sodium dodecylbenzenesulfonate aqueous solution (1wt%), and then rinsed with pure water to obtain a clean substrate;

[0102] Step 1, with epoxy resin solution

[0103] 20g of bisphenol A epoxy resin (E51), 5g of curing agent (T31) and the balance of acetone are required for 1kg of epoxy resin solution, for use;

[0104] Step 2, mix hydrophobic coating solution

[0105] The hydrophobic nano-silica particles and acetone with the industrial grade of R974 are prepared as a hydrophobic coating solution with a concentration of 3wt% (mass percentage), for use;

[0106] Step 3, epoxy resin coating preparation

[0107] Step 31, assemble the clean substrate 2 with four fixtures (2A, 2B, 2C, 2D), assemble the jacking screws on the fixtures, and adjust the balance with the A lifting mechanism and th...

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Abstract

The invention discloses a spray preparation method of an industrialized and anti-stripping large super-hydrophobic surface. A substrate with a large area is soaked in an epoxy resin solution, and thesubstrate is subjected to lifting and lowering, inclining, and leveling to obtain a pre-coated substrate; a plurality of spraying nozzles are used for ultrasonic atomization spraying; a hydrophobic coating is perpendicularly sprayed on the upper surface of the pre-coated substrate in an ultrasonic mode, and an anti-stripping and large super-hydrophobic coating is obtained on the upper surface of the substrate after low-temperature solidification. Super-hydrophobic surfaces no less than 0.8m*0.8m can be prepared on surfaces of different substrates. The super-hydrophobic performance of the prepared super-hydrophobic coating is stable, the water contact angle is more than 153 degrees, the rolling angle is less than 5 degrees, good anti-stripping performance is achieved, and the utilization rate of the super-hydrophobic coating is improved by ultrasonic atomization spraying.

Description

technical field [0001] The invention relates to a spray coating process, more particularly, to a spray coating preparation method for an industrialized anti-stripping large-area super-hydrophobic surface. Background technique [0002] Superhydrophobic surface is a surface with a contact angle of more than 150° with water and a rolling angle of less than 10°. Because superhydrophobic surfaces have broad application prospects in flow reduction, anti-icing, anti-corrosion, self-cleaning, etc., currently The preparation of superhydrophobic surfaces has attracted increasing attention in academia and industry. [0003] At present, there are two ways to prepare superhydrophobic surfaces. One way is to construct a suitable roughness on the surface of hydrophobic materials, and the other way is to modify the surface of materials with suitable roughness with low surface energy chemicals. Among them, how to prepare the micro-nano composite rough structure on the surface of the materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D7/00B05D7/14B05D1/18B05D1/02C09D163/00C09D1/00B05C13/02B05C3/09B05B15/68B05B17/06B05B13/02
CPCB05B13/02B05B15/68B05B17/06B05C3/09B05C13/02B05D1/02B05D1/18B05D5/00B05D7/00B05D7/14B05D2202/25B05D2203/35B05D2504/00C09D1/00C09D163/00
Inventor 蔡楚江王隆威刘彦鹏潘翀
Owner 承德纳森新材料科技有限公司
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