Naslov
Utjecaj SEBS na morfologiju, međupovršinska i mehanička svojstva polimernih mješavina
(EFFECT OF SEBS ON THE MORPHOLOGY, INTERFACIAL AND MECHANICAL PROPERTIES OF POLYMER BLENDS)

Autori
Ocelić Bulatović, Vesna ; Mihaljević, Antonia ; Govorčin Bajsić, Emi

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

Izvornik
16th Ružička days TODAY SCIENCE – TOMORROW INDUSTRY / Jukić, Ante ; Ocelić Bulatović, Vesna - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2016, 48-48

ISBN
978-953-6894-58-1

Skup
International Conference 16th Ružička days “TODAY SCIENCE – TOMORROW INDUSTRY”

Mjesto i datum
Vukovar, Hrvatska, 21.09.2016. - 23.09.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
SEBS; Polymer blends; morphology; interfacial; mechanical properties

Sažetak
The reason for polymer blends manufacturing is the intention to eliminate or to diminish the drawbacks that characterize the polymers and also desire to drop the price of the expensive polymers with specific properties by mixing them with the cheaper ones, without significant deterioration in these relevant properties. Since most blended polymers are immiscible, finding a suitable modifier is a major challenge. In this research, thermoplastic polyurethane elastomers (TPU)/isotactic polypropylene (iPP) blends with 5 wt. % of two different styrene–ethylene/butylene- styrene (SEBS) block copolymers as a potential compatibilizer were prepared by a twin-screw extruder and molded. The effects of unfunctionalized SEBS and functionalized grades containing maleic anhydride grafted to the midblock (SEBS-g-MA) on morphology, interfacial and mechanical properties were investigated. The results from the uncompatibilized blends clearly indicate that the TPU and iPP are immiscible resulting in undesirable properties of the blends. The stronger impact on mechanical properties is more pronounced with SEBS-g- MA as a compatibilizer. These significant improvements in the overall mechanical properties are due to finer morphology and stronger interfacial adhesion between TPU and iPP were achieved with SEBS-g-MA as a compatibilizer. The results of the thermogravimetric analysis confirmed these results evidenced by the significant increase of initial degradation temperature (IDT) and integrated procedural decomposition temperature (IPDT).

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA