Preparation method of titanium dioxide superhydrophobic film
A titanium dioxide and super-hydrophobic technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of synchronous construction of thin films, long preparation cycle, complex process, etc., and achieve excellent hydrophobicity, regular rough structure and repeatability Good results
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0031] A kind of preparation method of titanium dioxide superhydrophobic film of the present invention, specifically comprises the following steps:
[0032] Step 1: Preparation of titanium dioxide photosensitive sol
[0033] Add phenylacetone to methanol to dissolve, then add a certain amount of butyl titanate, the mass ratio of butyl titanate: phenylacetone: methanol is 1:0.5~1:10~20, seal and stir at room temperature for 2~ 5h, get TiO 2 Photosensitive sol; the viscosity of the sol can be adjusted by adding polyethylene glycol 200 (PEG-200), and the mass fraction of polyethylene glycol 200 is TiO 2 0.1% to 0.8% of the total weight of photosensitive sol;
[0034] Step 2: Preparation of titanium dioxide xerogel film
[0035] Immerse the cleaned silicon wafer in the titanium dioxide photosensitive sol obtained in step 1, and draw a smooth and flat sol-gel film on the silicon wafer by dipping and pulling method, the pulling speed is 0.005-0.025cm / s, and then dry , the drying...
Embodiment 1
[0043] Step 1: Preparation of titanium dioxide photosensitive sol
[0044] In a closed glove box where the relative humidity is not more than 40% RH and normal temperature and pressure, phenylacetone is added to dissolve in methanol, and then a certain amount of butyl titanate is added, the amount of butyl titanate: phenylacetone: methanol The ratio is 1:0.5:10. After sealing, stir at room temperature on a magnetic stirrer for 2 hours to obtain light yellow TiO 2 Transparent photosensitive sol;
[0045] Step 2: Preparation of titanium dioxide xerogel film
[0046] Dip the cleaned silicon wafer into the titanium dioxide photosensitive sol obtained in step 1, and draw a smooth and flat sol-gel film on the silicon wafer at a pulling speed of 0.005 cm / s by dipping and pulling method, and then at a temperature of 80°C Drying for 10min at low temperature to obtain a titanium dioxide xerogel film;
[0047] Step 3: Preparation of titanium dioxide film with regular micron-scale lattic...
Embodiment 2
[0053] Step 1: Preparation of titanium dioxide photosensitive sol
[0054] In a closed glove box where the relative humidity is not more than 40% RH and normal temperature and pressure, phenylacetone is added to dissolve in methanol, and then a certain amount of butyl titanate is added, the amount of butyl titanate: phenylacetone: methanol The ratio is 1:0.75:15. After sealing, stir at room temperature on a magnetic stirrer for 3.5h, then add PEG-200 with a total weight of 0.45% of the sol, and continue stirring for 0.5h to obtain light yellow TiO 2 Transparent photosensitive sol;
[0055] Step 2: Preparation of titanium dioxide xerogel film
[0056] Immerse the cleaned silicon wafer in the titanium dioxide photosensitive sol obtained in step 1, and draw a smooth and flat sol-gel film on the silicon wafer at a pulling speed of 0.015 cm / s by dipping and pulling method, and then at a temperature of 90°C Drying for 7.5min at a lower temperature to obtain a titanium dioxide xero...
PUM
Property | Measurement | Unit |
---|---|---|
Contact angle | aaaaa | aaaaa |
Contact angle | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com