Super-hydrophobic surface changes on the surface of nanostructure textiles.

Recent studies have focused on poly (hexafluoroacrylates) films that trigger chemical vapor deposition to make ultra-hydrophobic surface changes to the textile surfaces of nanostructures.
this study demonstrates the use of chemical vapor deposition (iCVD) methods to synthesize poly (hexafluoroacrylates) (PHFBA) films on textile substrates.
because of its short perfluoroane-based functional group, PHFBA is a suitable low-surface energy finishing agent that can be used for hydrophobic functionalization of textile surfaces

. During PHFBA's iCVD process, the use of triggers helps to achieve deposition rates of up to 83 nm/min, almost twice as high as PECVD.
FTIR and
analysis of high water contact angles and deposition films shows that the retention rate of carboxyl and perfluoroane base groups is very high. Polyester and cotton fabrics are made ultra-hydrophobic after the PHFBA has been coated with iCVD. Prior to the iCVD coating, decorating the fabric surface with SiO 2 nanoparticles helps to form a composite structure with double-scale roughness. The fabric that was eventually treated by SiO 2 and coated with iCVD-PHFBA shows a very high water contact angle (> 165 degrees).
the study has been published in the Journal of Coating Technology and Research Volume 17 (2020).
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