Development of Poly(propylene) Superhydrophobic Surfaces by Functionalised TiO2 Nanoparticles: Effect of Solvents and Dipping Times. Issue 1 (October 2014)

• Record Type: Journal Article
• Authors: Chagas, Gabriela Ramos; Weibel, Daniel Eduardo; Pinto, José Carlos; Soldi, Valdir
• Is Part Of: Macromolecular symposia. Volume 344:Issue 1(2014)
• Page Start: 55
• Page End: 62
• Publication Date: 2014-10
• Subjects: Macromolecules -- Congresses; Polymers -- Congresses; Polymerization -- Congresses; Macromolecules -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1002/masy.201300218
• Languages: English
• ISSNs: 1022-1360

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Summary</title> <sec id="masy201300218-sec-0001" sec-type="section"> <p>We present a simple strategy for the fabrication of poly(propylene) (PP) superhydrophobic surfaces, i.e., surfaces that show water contact angle (WCA) ≥ 150° after a simple dipping process. Injection‐moulded PP samples were coated with titanium dioxide nanoparticles previously functionalised with trimethoxy propyl silane. Water, ethanol or xylene were used as solvents in the nanoparticles' suspensions. The prepared superhydrophobic surfaces were characterised by WCA, FTIR‐ATR, SEM and profilometry measurements. PP coated samples showed very low wettability, with WCAs higher than 150° when xylene was used as a solvent. The combination of increasing the surface roughness via dipping coating process plus the low surface tension of the coating produced the final superhydrophobic PP substrates.</p> </sec> </abstract>