Antibacterial wood-plastic composite produced from treated and natural dyed wood fibers

Abstract

The main goal of the present study was the fabrication of wood/polyvinyl chloride (WPVC) composite with enhanced properties. In this regard, the wood fibers were primarily bleached with sodium chlorite and then dyeing of fibers was carried out with green walnut shells as a natural dye. Influences of natural dye on color, antibacterial, and mechanical properties of the composite were investigated. The WPVC composite showed excellent antibacterial activity measured against two common pathogenic bacteria including Escherichia coli and Staphylococcus aureus. Also, negligible toxicity of the composite was proven with cytotoxicity test. Furthermore, the color variation of the bleached sample after light irradiation was negligible, which demonstrated the proper colorfastness of the composite.

Screening Ionic Liquids by the COSMO-RS Method for the Preparation of Antibacterial Cellulose Fibers

“…coli and S. aureus, respectively) reported by Jamili et al Moreover, Popescu et al used the atomic layer deposition method at low temperatures to prepare ZnO and Al 2 O 3 conformal coatings on cotton fabrics and viscose fabrics. The viscose fibers coated with metal oxides inhibit 78% of E.…”

An Overview of the Antimicrobial Properties of Lignocellulosic Materials

“…The use of wood flour in polymer composites with antimicrobial activity is reported in the literature for different polymer matrices, such as polyvinyl chloride (PVC) [ 93 ], polyhydroxyalkanoate (PHA) [ 94 , 95 ], polylactic acid (PLA) [ 96 ], poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHVB) [ 97 ] and polyvinyl alcohol (PVA) [ 98 ]. The composites with PHA and PLA presented good antibacterial activity against E. coli .…”

“…The combination of wood material with non-wood materials also revealed promising results. Jamili et al [ 93 ] produced PVC composites with wood and wood dyed with walnut shell wood by extrusion process. The composites showed a reasonable reduction of the growth of S. aureus and E. coli ; however, the composites dyed with walnut shells proved to be the most antibacterial due to the presence of phenolic and naphthoquinone compounds in walnut.…”

Posibilidades de nanocompuestos madera-plástico en el diseño de productos

“…Los WPC también se utilizan en una gran variedad de aplicaciones en la industria automotriz, marina, electrónica y aeroespacial, principalmente como remplazo de la fibra de vidrio y el acero [94], [95] . Es importante señalar que este tipo de materiales son manufacturados principalmente utilizando las técnicas de extrusión, moldeo por inyección de plástico y moldeo por compresión [83] , por lo que la diversidad de productos que pueden ser fabricados es muy amplia.…”