Abstract
The present invention relates to a method for preparing super-hydrophobic micro-nano structure on stainless steel surface, which belongs to the technical field of material surface modification. It solves the defects of long preparation period and complicated process flow of super-hydrophobic surface of stainless steel without using fluorine-containing chemical reagents for modification. The prepared superhydrophobic micro-nano structure has good quality and stability. The present invention includes the following steps: (1) the stainless steel sample is ultrasonically cleaned in absolute ethanol and air-dried at room temperature; (2) the sample is subjected to the first infrared nanosecond laser ablation to obtain the micro-nano structure; (3) ultrasonic Atomizer, spray micro-droplets of stearic acid ethanol solution uniformly on the surface of the workpiece; (4) Perform a second infrared nanosecond laser ablation on the sample; (5) Use acetone, absolute ethanol, and Ultrasonic cleaning with ionized water for 10 minutes to remove the undecomposed stearic acid on the surface and the slag produced by laser ablation to obtain a stainless steel superhydrophobic surface with stable superhydrophobic properties.
| Translated title of the contribution | Method for preparing superhydrophobic structures on stainless steel |
|---|---|
| Original language | Chinese (Simplified) |
| Patent number | ZL201911063359.2 |
| IPC | CN110653493B |
| Filing date | 31/10/19 |
| Publication status | Published - 14 Aug 2020 |
Keywords
- micro-nano structures
- micro-droplets
- stainless steels
- superhydrophobic structures