Characterization of plastic blends made from mixed plastics waste of different sources

Abstract

This paper studies the recyclability of construction and household plastic waste collected from local landfills. Samples were processed from mixed plastic waste by injection moulding. In addition, blends of pure plastics, polypropylene and polyethylene were processed as a reference set. Reference samples with known plastic ratio were used as the calibration set for quantitative analysis of plastic fractions in recycled blends. The samples were tested for the tensile properties; scanning electron microscope-energy-dispersive X-ray spectroscopy was used for elemental analysis of the blend surfaces and Fourier transform infrared (FTIR) analysis was used for the quantification of plastics contents.

Flammability of wood plastic composites prepared from plastic waste

“…Carbon black, Raven®1170, was delivered by IMCD Finland Oy, mean particle size 21 nm, surface area 107 m 2 /g. The recycled plastic sources were household and construction solid waste described previously . Briefly, PB_C1‐PB_C8 were manufactured by using a “light fraction” (PE and PP) extracted from a construction mixed plastic blend; PB_C9 was manufactured from mixed household plastic waste.…”

“…The composition of the matrix, the PE percentage, was identified with calibration by using Fourier transform infrared analysis and is shown in Table . The procedure of the calibration is described previously . Spruce wood flour (WF) particles, on average 2.1 mm long, were produced in the laboratory.…”

“…The recycled plastic sources were household and construction solid waste described previously. 9,10 Briefly, PB_C1-PB_C8 were manufactured by using a "light fraction" (PE and PP) extracted from a construction mixed plastic blend; PB_C9 was manufactured from mixed household plastic waste. The composition of the matrix, the PE percentage, was identified with calibration by using Fourier transform infrared analysis and is shown in Table 1.…”

“…The procedure of the calibration is described previously. 9 Spruce wood flour (WF) particles, on average 2.1 mm long, were produced in the laboratory. An LDPE-and PP-based WPC was used as the references.…”

“…This study is a part of an ongoing research concerning the recyclability of plastic waste and using it in WPC manufacturing . The mechanical properties of WPCs prepared from construction and household mixed plastic waste have been examined previously .…”