Publication detail
Influence of Processing Conditions on Morphology and Mechanical Properties of PP Particulate Composites Influence of Processing Conditions on Morphology and Mechanical Properties of PP Particulate Composites Influence of Processing Conditions on Morphology and Mechanical Properties of PP Particulate Composites
NEZBEDOVÁ, E. KRČMA, F. POSPÍŠIL, L. LACH, R.
Original Title
Influence of Processing Conditions on Morphology and Mechanical Properties of PP Particulate Composites Influence of Processing Conditions on Morphology and Mechanical Properties of PP Particulate Composites Influence of Processing Conditions on Morphology and Mechanical Properties of PP Particulate Composites
Type
conference paper
Language
English
Original Abstract
Polymeric particulate composites with thermoplastics, especially polypropylene (PP) matrix and mineral fillers, are of great practical importance due to their simple possibility of modifying mechanical properties and reducing the price/volume ratio of resulting material. Fillers often do not directly face the matrix molecules in their bulk macro conformations. The matrix molecules near the surface of the fillers may have different macro conformations, appear as different thermodynamic phase, or even they have a different chemical composition. These regions are called interphases. Obviously, the adhesive must wet the particles to be joined in order that a strong bond might result. Particle surfaces are often pre-treated or activated to improve their adhesion to the matrix polymer. Both filler properties and interface properties have a great effect on the mechanical properties, primarily on stiffness and toughness. Good final dispersion of the filler particles plays also very important role. The system PPH + CaCO3 was used in the presented study. The commercial available CaCO3 nano particles are of tens nm dimension but they typically form much bigger agglomerates with the size up to 10 microns. Using the special procedure both for modifying the surface of particles as well as processing conditions we achieve to prepare the composites with well dispersed particles with agglomerates smaller than 100 nm, i.e. we were able to use nanofillers. The influence of morphology on mechanical properties was studied and compared with the commercially available system.
Keywords
polypropylene particulate composites, processing, morphology, properties
Authors
NEZBEDOVÁ, E.; KRČMA, F.; POSPÍŠIL, L.; LACH, R.
RIV year
2013
Released
26. 6. 2013
Publisher
Uniuversity of Patras
Location
Patras
ISBN
978-960-88104-3-3
Book
Proceedings of the 3rd International Conference of Engineering Against Failure
Pages from
48
Pages to
56
Pages count
9
BibTex
@inproceedings{BUT101799,
author="Eva {Nezbedová} and František {Krčma} and Ladislav {Pospíšil} and Ralf {Lach}",
title="Influence of Processing Conditions on Morphology and Mechanical Properties of PP Particulate Composites Influence of Processing Conditions on Morphology and Mechanical Properties of PP Particulate Composites Influence of Processing Conditions on Morphology and Mechanical Properties of PP Particulate Composites",
booktitle="Proceedings of the 3rd International Conference of Engineering Against Failure",
year="2013",
pages="48--56",
publisher="Uniuversity of Patras",
address="Patras",
isbn="978-960-88104-3-3"
}