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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F07%3APU70536%21RIV10-GA0-26210___
rdf:type
skos:Concept n14:Vysledek
dcterms:description
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. 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.
dcterms:title
Microfillers and fracture toughness of PP Microfillers and fracture toughness of PP
skos:prefLabel
Microfillers and fracture toughness of PP Microfillers and fracture toughness of PP
skos:notation
RIV/00216305:26210/07:PU70536!RIV10-GA0-26210___
n4:aktivita
n12:P
n4:aktivity
P(GA106/07/1284), P(GD106/05/H008)
n4:dodaniDat
n13:2010
n4:domaciTvurceVysledku
n7:4870670 n7:4441729 n7:3828743
n4:druhVysledku
n16:O
n4:duvernostUdaju
n17:S
n4:entitaPredkladatele
n5:predkladatel
n4:idSjednocenehoVysledku
433702
n4:idVysledku
RIV/00216305:26210/07:PU70536
n4:jazykVysledku
n15:eng
n4:klicovaSlova
Fracture toughness, PP composites
n4:klicoveSlovo
n11:Fracture%20toughness n11:PP%20composites
n4:kontrolniKodProRIV
[D92029CB9C6B]
n4:obor
n9:JI
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:projekt
n8:GA106%2F07%2F1284 n8:GD106%2F05%2FH008
n4:rokUplatneniVysledku
n13:2007
n4:tvurceVysledku
Veselý, Petr Nezbedová, Eva Vlach, Bohumil
n3:organizacniJednotka
26210