Publication detail

Microfillers and fracture toughness of PP

VESELÝ, P. VLACH, B. NEZBEDOVÁ, E.

Original Title

Microfillers and fracture toughness of PP

Type

conference proceedings

Language

English

Original Abstract

The mechanical properties of block copolymer PP matrix and mineral fillers are depended not only on the fillers content but also on its shape. Influence of two types of fillers (Talc, Kaolin) and two mass contents (20% and 35%) on the stiffness, strength and toughness were investigated. Tensile test was applied to estimate the tensile properties. The fracture mechanics approach was chosen to describe the toughness of the system. Particularly, the J-R curve procedure was used. The results were reviewed with microscopy observation. The high aspect ratio and high degree of orientation of talc along the tensile direction are responsible for the observed significant improvement in modulus and yield strength. The consequence of this behaviour is the embrittlement of this system. In the case of PP/kaolin composites less improvement in modulus and lower yield strength was observed. Fracture toughness was close to values of the native PP.

Keywords

Fracture toughness, PP composites

Authors

VESELÝ, P.; VLACH, B.; NEZBEDOVÁ, E.

Released

20. 6. 2007

Publisher

TU - Halle

Location

TU - Halle

Pages from

56

Pages to

59

Pages count

4

BibTex

@proceedings{BUT64366,
  editor="Petr {Veselý} and Bohumil {Vlach} and Eva {Nezbedová}",
  title="Microfillers and fracture toughness of PP",
  year="2007",
  pages="56--59",
  publisher="TU - Halle",
  address="TU - Halle"
}