Detail publikace

Microfillers and fracture toughness of PP

VESELÝ, P. VLACH, B. NEZBEDOVÁ, E.

Originální název

Microfillers and fracture toughness of PP

Typ

konferenční sborník (ne článek)

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Fracture toughness, PP composites

Autoři

VESELÝ, P.; VLACH, B.; NEZBEDOVÁ, E.

Vydáno

20. 6. 2007

Nakladatel

TU - Halle

Místo

TU - Halle

Strany od

56

Strany do

59

Strany počet

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"
}