A facile strategy for the fabrication of highly stable superhydrophobic cotton fabric using amphiphilic fluorinated triblock azide copolymers

Fabrication of superhydrophobic fabric coating using microphase‐separated dodecafluoroheptyl‐containing polyacrylate and nanosilica

“…As seen from Figure 5, WCA on the treated cotton fabrics reached 148.5° after one laundering cycle and could still attain 141.5° after five laundering cycles; however, after 20 laundering cycles, it greatly reduced to 120.5°. In comparison with the published works,14, 15, 17, 19, 34, 35 washing durability of the superhydrophobic fabric in the present work seems unfavorable. This result illustrated that on one hand, DFPA could form stable films on cotton fabric, which made the treated fabric retain a higher WCA after fewer laundering cycles; on the other hand, because of no chemical bonds amongst silica nanoparticles and textile fibers as well as the DFPA layer, the micro‐ and nanoscale structure might be damaged to some extent after intense laundering that should in turn adversely influence hydrophobicity of the treated fabric.…”

“…However, let us note that a special method and installations, γ‐ray irradiation, and relevant devices are necessary to construct the superhydrophobic cotton fabric, which is probably unfavorable to scale‐up production. Li et al15 had synthesized amphiphilic triblock azide copolymers containing poly(ethylene glycol) and poly(2,2,3,4,4,4‐hexafluorobutyl acrylate) blocks via room temperature RAFT polymerization using redox initiation and then used those copolymers to fabricate superhydrophobic cotton fabric. Although they claimed that the superhydrophobic cotton fabric possessed high stability and chemical durability due to the fluorinated polymer chains covalently attached on the cotton surface, it still contained several tedious steps and adopted ATRP preparation technique needing severe conditions.…”

Direct Photomodification of Polymer Surfaces: Unleashing the Potential of Aryl‐Azide Copolymers

“…Zhu et al reported on aryl‐azide chitosan/heparin complexes to inhibit platelets adhesion and activation . Li et al described fluorinated acrylate copolymers for hydrophobization of fabrics . Hadler et al investigated the photochemical modification of polyimide Kapton substrates with various hydrophilic polymers, which were functionalized with aryl azide groups in a postanalog reaction .…”

A facile dip‐coating approach to prepare SiO2/fluoropolymer coating for superhydrophobic and superoleophobic fabrics with self‐cleaning property

“…The main concern in superhydrophobic/superoleophobic fabrics is the retention of their properties with use. They are very weak to resist mechanical contact on their surfaces, which changes the inherent relatively large scale roughness of fabrics to lose their superhydrophobicity/superoleophobicity easily . Therefore, more facile and effective approaches for the preparation of superhydrophobic fabrics need to be explored.…”