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Journal of Environmental Waste Management and Recycling | Volume 1
March 05-06, 2018 | London, UK
Recycling & Waste Management
5th International Conference on
The effect of plastic waste sorting quality on recycled polypropylene performance
Belyamani Imane, Barbier D, Laanaya A, Vauloup J, Janeau L and Cauret L
Plastics Engineering Institute of Alençon, France
Post-consumer waste electrical and electronic equipment
(WEEE) isbecoming asignificantsourceofplasticwastesbecause
of the short useful life of electrical and electronic equipments,
and also their increased production as a consequence of the
fast technological innovation and market growth. Recycling
plastics from WEEE is an important waste management
strategy; however, plastic waste sorting is a real challenge and
a critical step. In fact, the sorting quality of recyclable plastics
influences not only the mechanical and physicochemical
properties of the final recycled materials, but also may causes
various toxic volatile organic compounds (VOCs) to be released
during melt processing stages. Indeed, during the injection
molding of WEEE recycled polypropylene (PPrec), employees
from our collaborator plant facility noticed that some PPrec
batches release undesirable odors. Investigation on PPrec
performance and VOCs composition as function of waste
sorting quality revealed surprising and interesting results.
Inodorous PPrec batches, resulting from a high quality
waste sorting, showed better tensile strength, Izod and Charpy
properties as compared to the odorous batches (coming from
a bad sorting) for which the char formation was found to be
more important. The char formation data agreed very well with
the X-ray fluorescence results displaying the presence of 0.1790
wt.%ofbromineelementinodorousbatchesversus0.0362wt.%
only in inodorous ones, which signifies a high concentration of
brominated components in the odorous batches. On the other
hand, in contrast to inodorous PPrec and a commercial
virgin PP, a laboratory scale heating system coupled to
Fourier transform infrared spectroscopy (FTIR) suggested that
the released VOCs fromodorous PPrec pellets contain potential
bisphenol-derived compounds. Thus emerged the hypothesis
that compounds such as tetrabromobisphenol and brominated
epoxy resins, which are highly used as flame retardants, could
be responsible for the odorous VOCs released from odorous
PPrec during injection molding.
Speaker Biography
Belyamani Imane is currently an assistant professor at the plastics engineering institute
of Alençon (ISPA) located in Alençon/France. She previously worked as a research
associate, at the school of polymers and high performance materials at
the University of Southern Mississippi/USA, and as a postdoctoral fellow at Rouen
University, France where she contributed to the development of the CARMAT artificial
heart. She received her Ph.D in Chemistry and Material Science from Jean Monnet
University in Saint-Etienne, France in 2011. Her research interests include plastic
recycling, biopolymers and bio-composites, and fire retardants.
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