High Pressure Laminates with Antimicrobial Properties
authors Magina, S; Santos, MD; Ferra, J; Cruz, P; Portugal, I; Evtuguin, D
nationality International
journal MATERIALS
author keywords PHMB; high pressure laminates; antimicrobial; bacteriostatic; bactericidal; surface; melamine-formaldehyde resin
keywords POLY(HEXAMETHYLENE BIGUANIDE) HYDROCHLORIDE; POLYHEXAMETHYLENE BIGUANIDE; TRICLOSAN; TOXICITY; RESISTANCE; EFFICACY; SILVER; DISINFECTANTS; NANOPARTICLES; POLIHEXANIDE
abstract High-pressure laminates (HPLs) are durable, resistant to environmental effects and good cost-benefit decorative surface composite materials with special properties tailored to meet market demand. In the present work, polyhexamethylene biguanide (PHMB) was incorporated for the first time into melamine-formaldehyde resin (MF) matrix on the outer layer of HPLs to provide them antimicrobial properties. Chemical binding of PHMB to resin matrix was detected on the surface of produced HPLs by attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR). Antimicrobial evaluation tests were carried out on the ensuing HPLs doped with PHMB against gram-positive Listeria innocua and gram-negative Escherichia coli bacteria. The results revealed that laminates prepared with 1.0 wt % PHMB in MF resin were bacteriostatic (i.e., inhibited the growth of microorganisms), whereas those prepared with 2.4 wt % PHMB in MF resin exhibited bactericidal activity (i.e., inactivated the inoculated microorganisms). The results herein reported disclose a promising strategy for the production of HPLs with antimicrobial activity without affecting basic intrinsic quality parameters of composite material.
publisher MDPI AG
issn 1996-1944
year published 2016
volume 9
issue 2
digital object identifier (doi) 10.3390/ma9020100
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000371828100046
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  impact metrics
journal analysis (jcr 2017):
journal impact factor 2.467
5 year journal impact factor 3.325
category normalized journal impact factor percentile 61.228
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