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A kind of high permeability hydrophobic dustproof film and preparation method thereof

A dust-proof film and hydrophobic technology, which is applied in the coating process of metal materials, coatings, special surfaces, etc., can solve the problems of unsatisfactory dust removal effect, complicated preparation process, poor film bonding force, etc., and achieve strong adhesion and process Simple, Inexpensive Effects

Active Publication Date: 2022-08-02
HARBIN INST OF TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As a passive dust removal technology, hydrophobic self-cleaning film relies on micro-nano structure and low surface energy, and can take away a large amount of dust in the presence of water. However, in the lunar environment, the dust removal effect of most hydrophobic self-cleaning films Not ideal, and low surface energy materials based on fluorocarbons have high cost, complicated preparation process and poor film adhesion

Method used

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  • A kind of high permeability hydrophobic dustproof film and preparation method thereof
  • A kind of high permeability hydrophobic dustproof film and preparation method thereof
  • A kind of high permeability hydrophobic dustproof film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0054] 1. Substrate pretreatment

[0055] Ultrasonic cleaning of glass substrates:

[0056]First, use anhydrous ethanol to clean for 15 minutes, and the number of cleanings is 1; then use acetone to clean for 20 minutes, and the number of cleanings is 1; then use anhydrous ethanol to clean for 15 minutes, and the number of cleanings is 2 times; The number of cleanings is 1 time; then use absolute ethanol to clean for 15min, and the number of cleanings is 1 time; finally, it is dried at 70°C for 1h.

[0057] 2. Preparation of coating

[0058] (1) Preparation of the lower film layer:

[0059] The pre-treated glass substrate is subjected to atomic layer deposition, and a ZnO film is deposited on the surface of the glass substrate. The specific operation is called:

[0060] (1) Put the substrate processed in step 1 in the deposition chamber of the atomic layer deposition apparatus, and pump the vacuum chamber to 5×10 -3 Torr, then pass nitrogen until the chamber pressure is 0....

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Abstract

The invention discloses a high permeability hydrophobic dustproof film and a preparation method thereof, belonging to the technical field of functional material preparation. The present invention solves the technical problems of high preparation cost, complicated process and poor film bonding force of the existing hydrophobic self-cleaning film. In the invention, an atomic layer deposition system is used to prepare a layer of ZnO film on the surface of the glass substrate, and then the organic silicon resin and the hydrophobic nano-silica are combined and spin-coated on the surface of the test piece to obtain a film with good dust removal effect. The highest light transmittance of the hydrophobic self-cleaning film prepared by the invention reaches 98.12%, and the hydrophobic angle is 127°. In addition, it also has the advantages of friction resistance, strong adhesion and long service life.

Description

technical field [0001] The invention relates to a high permeability hydrophobic dustproof film and a preparation method thereof, belonging to the technical field of functional material preparation. Background technique [0002] The special environment of the moon makes it easy for moon dust to adhere to the surface of optical devices, which reduces the output power and easily causes the equipment to overheat and fail, which brings great harm to the lunar exploration project. The main sources of lunar dust are the weathering of the lunar surface and the collision of micrometeoroids. The lunar dust deposited on the surface of the lunar probe is difficult to be removed naturally due to its strong adhesion, which eventually leads to the failure or even failure of the lunar probe. [0003] At present, the protection methods of moon dust are mainly divided into two types: active protection and passive protection. Among them, active protection is mainly to clean the protected sur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D5/00B05D5/06B05D5/08B05D7/24C23C16/40C23C16/455
CPCB05D5/00B05D5/061B05D5/08B05D7/24C23C16/407C23C16/45555B05D2203/35B05D2601/22B05D2518/10
Inventor 卢松涛李杨吴晓宏郭宝李晓春
Owner HARBIN INST OF TECH
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