Abstract
The paper aimed at evaluating the feasibility and the properties of a new product which combines wood veneer and high-density polyethylene (HDPE) from post-consuming plastic bags. Three HDPE amounts were evaluated: 150g/m2, 250 g/m2 e 350 g/m2. The boards were manufactured using a single-opening hot-press under such conditions: 140oC, for 20 minutes and pressure of 1 N/mm2. It was found that the production of this kind of composite board is technically possible and relatively simple and they did not present any veneer delamination. The properties of the composite boards were quite similar or even higher to those found in LVL made using thermosetting resin. The higher the HDPE amount the higher the density of the composite board, which imparted significantly in mechanical properties. However, when the composite boards were evaluated under same density the effect of the HDPE amount affected only Janka hardness.
Highlights
Six and half million tons of thermoplastic resins were consumed in 2011, and approximately 21.7% of plastics were recycled in Brazil this period, representing approximately 953,000 tons per year[1]
The polyethylene was the most used plastic in flexible packaging in 2013, wherein the plastic had less participation in the flexible plastic packaging production in Brazil in 2013, being high-density polyethylene (HDPE) highlighted. It appears with 262,000 tons equivalent to 26% of total demand, the main customer is the personal care industry and household cleaning, with 27% of participation, followed by disposable that are basically represented by plastic bags from supermarket (19%) and farming (8%); foods have
It was found that the utilization of increasing amount of HDPE led to density improvement, which affected positively mechanical and physical properties of the laminated veneer lumber (LVL)‐HDPE composite board
Summary
Six and half million tons of thermoplastic resins were consumed in 2011, and approximately 21.7% of plastics were recycled in Brazil this period, representing approximately 953,000 tons per year[1]. In a framework on the main materials participation in total MSW (Municipal Solid Waste) collected in Brazil in 2012, the plastic residues quantified 7,635,851 t/year. The polyethylene was the most used plastic in flexible packaging in 2013, wherein the plastic had less participation in the flexible plastic packaging production in Brazil in 2013, being HDPE (high-density polyethylene) highlighted. It appears with 262,000 tons equivalent to 26% of total demand, the main customer is the personal care industry and household cleaning, with 27% of participation, followed by disposable that are basically represented by plastic bags from supermarket (19%) and farming (8%); foods have
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