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Journal of EnvironmentalWaste Management and Recycling | Volume 2 Earth Science 2019
May 22-23, 2019 | Rome, Italy
EARTH SCIENCE,
RECYCLING & SPACE TECHNOLOGY
7th International Conference on
INFLUENCE OF COMPATIBILIZER ON MECHANICAL PROPERTIES OF PRISTINE AND RE-
CYCLED PP/PE BLENDS
Alejandra Costantino1, Rosales C1, Pettarin V1, Bernal C 2, Palazzo G3 and Defacio Dutra R4
1 INTEMA, UNMDP/CONICET, Argentina
2 ITPN, UBA/CONICET, Argentina
3 AMPACET Latin América, Argentina
4 AMPACET Latin América, Brazil
One of the big challenges of recycling engineering of thermoplastics is to manufacture competitive pieces
or products in terms of mechanical properties such as toughness or strength. Improvedmechanical perfor-
mance of recycled materials would widen their application field. One of the strategies to improve PE/PP blends
performance is to add special compatibilizers. The aim of the present work is to obtain recycled PE/PP blends
from industrial wastes with similar properties to those of virgin PE/PP blends. Four different pristine blends
were prepared: without compatibilizer and with 11wt% of three different co-polymer based compatibilizers.
Also, three recycled blends were studied: without and with two different masterbatch compatibilizers. Blends
were prepared in a single screw extruder simulating industrial processing conditions and then processed via
compression moulding into plaques. Microstructure and morphology of blends were analyzed by DSC and
SEM. Tensile and fracture tests were carried out on mode I double edge-notched tensile specimens (DENT) at
quasi-static conditions (2mm/min). Fracture surfaces were studied by SEM. It was found that the addition of
compatibilizing masterbatches improves the performance of both pristine and recycled PP/PE blends.
Alejandra Costantino et al., J Environ Waste Management and Recycling 2019, Volume 2
Alejandra Costantino was born in 1985. She was graduated in Materials Engineering in 2010 and received her PhD in Material’s Sci-
ence in 2016 at the University of Mar del Plata, Argentina. She is currently working as a Researcher at Institute of Materials Science
and Technology in the Polymer Science and Engineering Group at University of Mar del Plata, Argentina. She made research studies
at Universidade do Minho, Portugal during 2010 to 2014, and Institut National Des Sciences Appliquées, INSA, Blois, France in 2017.
In the beginning of her professional career she has worked on the structural characterization of thermoplastic injected polymers
with and without fillers, establishing distinctive characteristics of their mechanical behavior and processing conditions. Lately, she
has extended her studies to recycled polymers. Thus, she has become an expert in injection moulding process and impact analysis,
mechanical behavior and fracture of polymers and their composites (macro, micro and nano composites). Her experience focuses
on correlating structural performance in service (Fracture mechanics, impact tests, conventional mechanical tests and deformation
study) processing, with the microstructural characteristics of polymers and their compounds, characterizing the components glob-
ally or detecting mechanically weak areas in the final pieces.
BIOGRAPHY