Naslov
Morphology and Rheological Properties of PP/SEBS /PS-HI Blends

Autori
Holjevac Grgurić, Tamara ; Rek, Vesna ; Jelčić, Želimir ; Mišak-Mlinac, Marica

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Polymers for Advanced Technologies - Book of Abstracts / Marosi - Budimpešta, 2005

Skup
Polymers for Advanced Technologies

Mjesto i datum
Budimpešta, Mađarska, 13.09.2005. - 16.09.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
polymer blends; compatibilization; poly(propylene); morphology; dynamic mechanical analysis

Sažetak
The final properties of polymer blends are related to the quality of their morphology, which depends on processing conditions, composition of the blends, rheological properties of phases and compatibility of polymer components. The compatibility of a polymer blend can be improved by the addition of compatibilizers. In this work, the effect of SEBS block copolymer, as compatibilizer, on rheological properties in processing and use, and morphology of PP/PS-HI blends was investigated. Processing behaviour of PP/SEBS/PS-HI blends was followed by measuring torque, output and melt pressure in the twin extruder Haake Record 90. Dynamic-mechanical analysis was performed in temperature range from -100°C to 170°C, and primary viscoelastic functions, E`, E" and tg , were determined. Following mechanical properties were examined: strength, elongation at break, and impact strength. The mechanical and rheological properties of investigated blends were correlated with the morphology obtained by scanning electron microscopy. The results show better compatibility of PP/PS-HI blends with SEBS block copolymer, what is visible from the better morphology structure and investigated properties.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA