Hydrophobic and Anti-Fouling Performance of Surface on Parabolic Morphology

Abstract

The hydrophobicity and anti-fouling properties of materials have important application value in industrial and agricultural production and people's daily life. To study the relationship between the unit width L 0 of the parabolic hydrophobic material and the hydrophobicity and anti-fouling properties, the rough surface structure of the parabolic with different widths was prepared by grinding with different SiC sandpapers, and further, to obtain hydrophobic materials through chemical oxidation and chemical etching, and modification with stearic acid (SA). The morphology, surface wetting and anti-fouling properties of the modified materials were characterized by SEM and contact angle measurement. The oil-water separation performance and self-cleaning performance of the materials were explored. The surface of the modified copper sheet forms a rough structure similar to a paraboloid. When ground with 1500 grit SiC sandpaper, it is more conducive to increase the hydrophobicity of the copper sheet surface and increase the contact angle of water droplets on the copper surface. Additionally, the self-cleaning and anti-fouling experiments showed that as L 0 decreases, copper sheets were less able to stick to foreign things such as soil, and the better the self-cleaning and anti-fouling performance was. Based on the oil-water separation experiment of copper mesh, the lower L 0 has a higher oil-water separation efficiency. The results showed that material with parabolic morphology has great self-cleaning, anti-fouling, and oil-water separation performance. The smaller the L 0 was, the larger the contact angle and the better hydrophobic performance and self-cleaning performance were.

An eco-friendly approach using a nonfluorous self-cleaning metal–organic framework composite and membrane for oil–water separation

“…7 and Movie S6. † 19 When applied, the polymer-coated sponge composite and membrane were unable to maintain the self-cleaning nature. The self-cleaning nature of the above composite and membrane avoids the adhesion of any nutrient or soil material that could help them develop fouling.…”

Superhydrophobic Self-Cleaning Composite of a Metal–Organic Framework with Polypropylene Fabric for Efficient Removal of Oils from Oil–Water Mixtures and Emulsions

“…When the experiment was repeated with only PP fabric, the mass of 65 mg of PP fabric increased to 662 mg due the absorption of soilrhodamine-B suspension (Figure S47). 70 The above experiments showed that the SHMOF−PP composite has both selfcleaning as well as an anti-fouling nature. The microorganism present in the water body requires water for their growth.…”

Rapid antibacterial activity of anodized aluminum-based materials impregnated with quaternary ammonium compounds for high-touch surfaces to limit transmission of pathogenic bacteria

“…As shown in Table 1, the reference materials copper and Al exhibited a slight hydrophobicity of their surface (around [78][79][80][81][82][83][84][85], in accordance with previously published data. [48][49][50][51] In contrast, the anodization process on Al signicantly decreased the contact angle (around 49 ), the AA being more hydrophilic than Al (p < 0.001). These results are in contradiction with the hydrophobic/superhydrophobic properties normally induced by the hard anodization process of aluminum materials.…”