Pregled bibliografske jedinice broj: 256051
Influence of filler properties on polypropylene/silica composites behavior
Influence of filler properties on polypropylene/silica composites behavior // Book of Abstracts / Dekany, Imre (ur.).
Budimpešta: Hungarian Academy of Sciences (MTA), 2006. str. 228-228 (poster, nije recenziran, sažetak, znanstveni)
CROSBI ID: 256051 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Influence of filler properties on polypropylene/silica composites behavior
Autori
Pustak, Anđela ; Šmit, Ivan ; Švab, Iztok ; Musil, Vojko
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Book of Abstracts
/ Dekany, Imre - Budimpešta : Hungarian Academy of Sciences (MTA), 2006, 228-228
Skup
20th Conference of the European Colloid and Interface Society and 18th European Chemistry at Interfaces Conference
Mjesto i datum
Budimpešta, Mađarska, 17.09.2006. - 22.09.2006
Vrsta sudjelovanja
Poster
Vrsta recenzije
Nije recenziran
Ključne riječi
composite; polypropylene; silica
Sažetak
The influence of different silica grades on the properties of binary polypropylene (PP)/silica composites were investigated by optical and SEM microscopy, wide-angle X-ray diffraction (WAXD) and by measurements of tensile properties. The polypropylene (PP)/silica composites of 92/8 volume content ratio were prepared from melt by compression moulding. The effects of different silica grades, particle size (nanosilica vs. microsilica) and surface treatment (untreated surface or hydrophilic vs. treated surface or hydrophobic silica), on phase morphology and mechanical properties of the PP/silica composites were compared. The results revealed the formation of well-homogenized PP composites without substantial agglomeration of filler even in the PP composites with nanosilica particles. Polarization micrographs revealed uniform morphology of PP matrix showing grains, irregular or well-developed spherulites. Whereas the impact strength and yield characteristics of all samples were similar, tensile properties at break exhibited differences between the composites with hydrophilic and hydrophobic silica. Hydrophobic micro- and nanosilicas enabled better spherulitization of PP matrix enhancing thus elongation and decreasing the strength at break. It seems that these differences arose from the influence of various silica grades on the crystallization of the PP matrix.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
