Fluorinated polyhedral oligomeric silsesquioxane nanoparticles to boost the dirt repellence of high pressure laminates

authors	Magina, S; Ferra, J; Cruz, P; Nogueira, HIS; Portugal, I; Evtuguin, DV
nationality	International
journal	CHEMICAL ENGINEERING JOURNAL
author keywords	High pressure laminates; Fluorinated polyhedral oligomeric silsesquioxane; Free surface energy; Cleanability; Hydrophobicity; Abrasion resistance
keywords	DIFFERENTIAL SCANNING CALORIMETERS; SURFACE FREE-ENERGY; SUPEROLEOPHOBIC SURFACES; SUPEROMNIPHOBIC SURFACES; DESIGN; CALIBRATION; VIBRATIONS
abstract	High pressure laminates (HPLs) are attractive, resistant to environmental effects and good cost-benefit decorative surface composite materials whose properties can be tailored to meet specific market demands. In this study, the substantial improvement of dirt repellence of HPLs with simultaneous enhancement of its abrasion resistance was achieved for the first time by incorporating nonafluorohexyl polyhedral oligomeric silsesquioxane (FH-POSS) nanoparticles (up to 1% w/w) into a melamine formaldehyde (MF) resin matrix used to impregnate decorative and overlay papers required for HPLs production. FH-POSS particles were synthesized and thoroughly characterized by C-13 and Si-29 solid state nuclear magnetic resonance (NMR) spectroscopy, and by X-ray diffraction (XRD) analysis. Fluoroalkyl moieties in FH-POSS afforded increased hydrophobicity to HPLs thus providing improved surface clean ability, whereas abrasion resistance was improved due to the robust silica core of the POSS particles. Hydrophobicity of HPLs doped with FH-POSS increased with time, after resin curing, and this was attributed to migration of FH-POSS nanoparticles to the composite surface. (C) 2016 Elsevier B.V. All rights reserved.
publisher	ELSEVIER SCIENCE SA
issn	1385-8947
year published	2016
volume	301
beginning page	362
ending page	370
digital object identifier (doi)	10.1016/j.cej.2016.05.028
web of science category	Engineering, Environmental; Engineering, Chemical
subject category	Engineering
unique article identifier	WOS:000378470700040