Publication detail
The effect of an interphase on micro-crack behaviour in polymer composites
HUTAŘ, P. NÁHLÍK, L. MAJER, Z. KNÉSL, Z.
Czech title
Vliv mezifáze na chování mikrotrhliny v polymerních kompozitech
English title
The effect of an interphase on micro-crack behaviour in polymer composites
Type
book chapter
Language
en
Original abstract
The present chapter is focused mainly on polypropylene based composites filled by mineral fillers, but some results can be generalized for other particle composites. The stiffness and toughness of the composite is modelled using a three-phase continuum consisting of the polymer matrix, mineral particles and an interphase between them. It is shown that the effect of the interphase on the macroscopic characteristics of the composite is decisive. Generally, the addition of the mineral filler to the polymer matrix leads to ebrittlement of the composite. It is shown that properties of the interphase control both the stiffness and embrittlement of the particulate composite. Primarily, the interaction of micro-cracks with coated particles is studied. It is concluded that in some cases of the microscopic particles, size and specific interphase properties and the addition of mineral fillers can lead to a good balance between fracture toughness and stiffness.
Czech abstract
The present chapter is focused mainly on polypropylene based composites filled by mineral fillers, but some results can be generalized for other particle composites. The stiffness and toughness of the composite is modelled using a three-phase continuum consisting of the polymer matrix, mineral particles and an interphase between them. It is shown that the effect of the interphase on the macroscopic characteristics of the composite is decisive. Generally, the addition of the mineral filler to the polymer matrix leads to ebrittlement of the composite. It is shown that properties of the interphase control both the stiffness and embrittlement of the particulate composite. Primarily, the interaction of micro-cracks with coated particles is studied. It is concluded that in some cases of the microscopic particles, size and specific interphase properties and the addition of mineral fillers can lead to a good balance between fracture toughness and stiffness.
English abstract
The present chapter is focused mainly on polypropylene based composites filled by mineral fillers, but some results can be generalized for other particle composites. The stiffness and toughness of the composite is modelled using a three-phase continuum consisting of the polymer matrix, mineral particles and an interphase between them. It is shown that the effect of the interphase on the macroscopic characteristics of the composite is decisive. Generally, the addition of the mineral filler to the polymer matrix leads to ebrittlement of the composite. It is shown that properties of the interphase control both the stiffness and embrittlement of the particulate composite. Primarily, the interaction of micro-cracks with coated particles is studied. It is concluded that in some cases of the microscopic particles, size and specific interphase properties and the addition of mineral fillers can lead to a good balance between fracture toughness and stiffness.
Keywords in Czech
částicový kompozit s polymerní matricí, minerální plnivo, víceúrovňové modelování
Keywords in English
Particulate polymer composite, Mineral filler, Embrittlement, Multiscale modelling
Released
08.01.2011
Publisher
Springer
Location
Dordrecht
ISBN
978-94-007-0316-2
Book
Computational Modelling and Advanced Simulations
Edition number
24
Pages from–to
83–97
Pages count
364
BIBTEX
@inbook{BUT62059,
author="Pavel {Hutař} and Luboš {Náhlík} and Zdeněk {Majer} and Zdeněk {Knésl},
title="The effect of an interphase on micro-crack behaviour in polymer composites",
booktitle="Computational Modelling and Advanced Simulations",
year="2011",
month="January",
pages="83--97",
publisher="Springer",
address="Dordrecht",
isbn="978-94-007-0316-2"
}