4.6 Article

Superhydrophobic Fabrics with Mechanical Durability Prepared by a Two-Step Plasma Processing Method

Journal

COATINGS
Volume 8, Issue 10, Pages -

Publisher

MDPI
DOI: 10.3390/coatings8100351

Keywords

plasma micro-nanotexturing; superhydrophobic fabrics; mechanical durability

Funding

  1. program of Industrial Scholarships of Stavros Niarchos Foundation

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Most studies on superhydrophobic fabrics focus on their realization using additive manufacturing (bottom-up) techniques. Here we present the direct modification of three different fabrics using a plasma-based method to obtain anti-adhesive and self-cleaning properties. A two-step plasma processing method is used: (a) for the creation of micro-nanoscale features on the fabric surface (plasma texturing step) and (b) the minimization of the fabric surface energy (by a short plasma deposition step of a very thin, low surface energy layer). The entire process takes only 14 min and all fabrics after processing exhibit high water static contact angles (WSCA > 150 degrees), low contact angle hysteresis (CAH < 7 degrees) and advantageous mechanical durability against hand-rumpling. The method is simple and generic, and it can be therefore expanded to other polymeric fabrics (i.e., acrylic) in addition to polyester, without any limitation rising from the weaving characteristics of the fabric or the starting nature of the material (i.e., hydrophobic or hydrophilic).

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