High Pressure Laminates with Antimicrobial Properties

Materials

Inês Portugal¹  Sandra Magina¹  Dmitry Evtuguin¹  Mauro D. Santos¹  João Ferra²  Paulo Cruz³ 

[1] CICECO–Aveiro Institute of Materials and Chemistry Department, University of Aveiro,Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;EuroResinas–Indústrias Químicas SA, Plataforma Industrial de Sines-Lote Industrial I, Monte Feio, 7520-064 Sines, Portugal;SONAE Indústria de Revestimentos SA (SIR), Lugar do Espido-Via Norte, Apartado 1096, 4470-177 Maia, Portugal;

关键词: PHMB;    high pressure laminates;    antimicrobial;    bacteriostatic;    bactericidal;    surface;    melamine-formaldehyde resin;   

DOI  :  10.3390/ma9020100

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown