Robust Superamphiphobic Fabrics with Excellent Hot Liquid Repellency and Hot Water Vapor Resistance

Abstract

Superamphiphobic surfaces progress rapidly but suffer from the issues of low repellency to hot liquids, complicated and nonaqueous preparation methods, and low durability. Here, a simple waterborne approach is developed to fabricate robust superamphiphobic fabrics with excellent hot liquid repellency and hot water vapor resistance. First, a perfluorodecyl polysiloxane (FD-POS) aqueous suspension was prepared by hydrolytic cocondensation of (3-glycidyloxy propyl)­trimethoxysilane and 1H,1H,2H,2H-perfluorodecyltriethoxysilane with SiO2 particles. Then, the superamphiphobic fabrics were fabricated by dipping polyester fabrics in the suspension, which were then cured. The fabrics show excellent superamphiphobicity owing to the combination of the hierarchical micro-/nanostructure and FD-POS with very low surface energy. The superamphiphobic fabrics feature excellent hot liquid repellency even for a large volume of 130.0 °C soybean oil and condensed small droplets from ∼90.0 °C water vapor. This is attributed to its high superamphiphobicity, excellent hot water vapor resistance, and outstanding thermal durability. In addition, the superamphiphobic fabrics exhibit high mechanical and chemical durability against washing, abrasion, and immersion in corrosive or organic liquids. Thus, hot liquid repellent superamphiphobic fabrics may find applications in various fields such as antiadhesion of various hot liquids and in efficiently preventing scalding.

Designing Photothermal Superhydrophobic PET Fabrics via In Situ Polymerization and 1,4-Conjugation Addition Reaction

“…However, photothermal conversion materials face serious rainwater corrosion and environmental pollutant pollution problems during long-term outdoor operation, which significantly affects their performance stability and service life. Meanwhile, the superhydrophobic surface with a water contact angle (WCA) larger than 150° and sliding hysteresis angle less than 10° can possess the self-cleaning ability against rainwater and contaminants. − Therefore, combining the superhydrophobic coatings with photothermal conversion materials to fabricate a flexible photothermal superhydrophobic material is able to meet the requirement of real applications.…”

Design of Waterborne Superhydrophobic Fabrics with High Impalement Resistance and Stretching Stability by Constructing Elastic Reconfigurable Micro-/Micro-/Nanostructures

“…The as-formed homogeneous F-silica suspension is mainly composed of silicone oligomers and oligomer-modified silica nanoparticles. Then, the PET and stretched PET fabrics were immersed in the suspension for 10 min, during which F-silica was adsorbed onto the fabric microfibers by hydrogen bonding between their Si–OH/–OH groups . Subsequently, the fabrics were dried at 60 °C for 2 h to fix F-silica on the microfibers, and then the stretched fabrics were released to form micro-/nanostructures on the microfibers.…”

“…Then, the PET and stretched PET fabrics were immersed in the suspension for 10 min, during which F-silica was adsorbed onto the fabric microfibers by hydrogen bonding between their Si−OH/−OH groups. 47 Subsequently, the fabrics were dried at 60 °C for 2 h to fix F-silica on the microfibers, and then the stretched fabrics were released to form micro-/nanostructures on the microfibers. Finally, all the fabrics were cured at 140 °C for 4 h to strengthen bonding of the micro-/nanostructures on the microfibers by further condensation of the silicone oligomers and with the microfibers.…”

Recent advances in eco-friendly fabrics with special wettability for oil/water separation

“…In addition, waterborne SHB fabrics have also shown important applications in scald prevention, pressure resistance and heat resistance. [164][165][166] For example, Zhang's research group 165 reported a waterborne SHB fabric for efficient scaldprevention by dip-coating the fabric in a hexadecyl polysiloxane (HD-POS) aqueous suspension. The obtained fabric could efficiently prevent the penetration of hot water and most of the steam, thus avoiding the direct contact of hot water and steam with the rat skin.…”