Morphology of polypropylene/silica nano- and microcomposites

Pustak, Anđela; Pucić, Irina; Denac, Matjaž; Švab, Iztok; Pohleven, Janez; Musil, Vojko; Šmit, Ivan

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Naslov:	Morphology of polypropylene/silica nano- and microcomposites
Avtorji:	ID Pustak, Anđela (Avtor) ID Pucić, Irina (Avtor) ID Denac, Matjaž (Avtor) ID Švab, Iztok (Avtor) ID Pohleven, Janez (Avtor) ID Musil, Vojko (Avtor) ID Šmit, Ivan (Avtor)
Datoteke:	http://onlinelibrary.wiley.com/doi/10.1002/app.38487/pdf
Jezik:	Angleški jezik
Vrsta gradiva:	Delo ni kategorizirano
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	EPF - Ekonomsko-poslovna fakulteta
Opis:	The aim of this study was to compare the effects of different silica grades on the structure and morphology of isotactic polypropylene (iPP)/silica composites to better understand their structure-property relationships. Isotactic polypropylene composites with 2, 4, 6, 8 vol % of added silica fillers differing in particle size (micro- vs. nanosilica) and surface modification (untreated vs. treated surface) were prepared by nonisothermal compression molding and characterized by different methods. The addition of all silica fillers grades to the iPP matrix significantly influenced the spherulitic morphology, while phase characteristics of the iPP matrix seemed to be unaffected. Surface modification of silica fillers exhibited stronger effects on spherulite size than size of silica particles. Nonpolar silica particles, more miscible or compatible with iPP chains than polar silica particles, enabled better spherulitic growth. The spherulite sizes tended to reach equal values at 8 vol % of added silicas showing that spherulite size became independent of filler concentration and surface modification above optimum filler concentration.
Ključne besede:	polipropilen, mehanske lastnosti, strukturni odnosi, morfologija, kompoziti
Leto izida:	2013
Št. strani:	str. 3099-3106
Številčenje:	Vol. 128, no. 5
PID:	20.500.12556/DKUM-49808
UDK:	678
COBISS.SI-ID:	11340828
ISSN pri članku:	0021-8995
NUK URN:	URN:SI:UM:DK:ODQXC26T
Datum objave v DKUM:	10.07.2015
Število ogledov:	1309
Število prenosov:	121
Metapodatki:
Področja:	Ostalo
:	PUSTAK, Anđela, PUCIĆ, Irina, DENAC, Matjaž, ŠVAB, Iztok, POHLEVEN, Janez, MUSIL, Vojko in ŠMIT, Ivan, 2013, Morphology of polypropylene/silica nano- and microcomposites. Journal of applied polymer science [na spletu]. 2013. Vol. 128, no. 5, p. 3099–3106. [Dostopano 2 april 2025]. Pridobljeno s: http://onlinelibrary.wiley.com/doi/10.1002/app.38487/pdf Kopiraj citat