Plniva a lomová houževnatost PP kompozitu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F07%3APU70536" target="_blank" >RIV/00216305:26210/07:PU70536 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Microfillers and fracture toughness of PP

Popis výsledku v původním jazyce

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, strengthand 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.

Název v anglickém jazyce

Microfillers and fracture toughness of PP

Popis výsledku anglicky

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, strengthand 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.

Druh

O - Ostatní výsledky

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů