A versatile approach towards development of easy-to-clean transparent nanocoating systems with pronounced anti-static properties for various substrates

Author:

Papadopoulos Nikolaos D.1,Falara Pinelopi P.2,Vourna Polyxeni1

Affiliation:

1. BFP Advanced Technologies, 11633, Athens, Attiki, Greece

2. School of Chemical Engineering, National Technical University of Athens, 9 Ir. Polytech. St., Zografou, 15780, Greece

Abstract

<abstract> <p>Sol-gel is a widely applied method for the development of hydrophobic anti-soiling coatings. Most of them however suffer from serious drawbacks which restrict their generic applicability, especially on surfaces with limited number of hydroxyl groups. This study aims to propose a facile and straightforward strategy for the development of an "one-fits-all" anti-soiling coating with strong adhesion to a variety of hard, non-absorbent surfaces. The structure of the proposed composition is based on a two-component coating system consisting of an organopolysilazane primer and an alkoxysilane topcoat, based on a quaternarized ammonium silane. Morphology and microstructure were systematically studied, while hydrophobicity, adhesion, stability, abrasion and chemical resistance were determined on aluminum and PC substrates. The anti-soiling behavior of the proposed coating system was also evaluated. It was found that the polysilazane primer provided mechanical and chemical robustness regardless of substrate type, while the quaternarized silane offered pronounced easy-to-clean and anti-static attributes. The combination of such attributes within a single sol-gel coating system is highly beneficial for numerous applications.</p> </abstract>

Publisher

American Institute of Mathematical Sciences (AIMS)

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