Naslov
Istraživanje morfologije, međupovršinskih i mehaničkih svojstava iPP/SEBS(-g-MA) kompozita ojačanih silikom
(Morphology, interfacial and mechanical properties study of silica reinforced iPP/SEBS(-g-MA) composites)

Autori
Pustak, Anđela ; Denac, Matjaž ; Leskovac, Mirela ; Švab, Iztok ; Musil, Vojko ; Šmit, Ivan

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

Izvornik
25. Hrvatski skup kemičara i kemijskih inženjera s međunarodnim sudjelovanjem ; 3. simpozij Vladimir Prelog : knjiga sažetaka = 25th Croatian Meeting of Chemist and Chemical Engineers with international participation. 3rd symposium “Vladimir Prelog” : Book of Abstracts / Šantić, Ana ; Đaković, Marijana - Zagreb : Hrvatsko kemijsko društvo, 2017, 225-225

ISBN
978-953-552327-7

Skup
25. Hrvatski skup kemičara i kemijskih inženjera s međunarodnim sudjelovanjem ; 3. simpozij Vladimir Prelog = 25th Croatian Meeting of Chemist and Chemical Engineers with international participation. 3rd symposium “Vladimir Prelog”

Mjesto i datum
Poreč, Hrvatska, 12.04.2017. - 22.04.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
odnosi struktura-svojstvo ; polipropilenski kompoziti
(structure-propertiy relationships ; polypropylene composites)

Sažetak
The effects of different silica and elastomeric content on morphology, interfacial properties, and mechanical properties of polypropylene/silica 96/4 composites modified with 5, 10, 15, and 20 vol% of poly(styrene-b-ethylene-co-butylene-b-styrene) SEBS and SEBS grafted with maleic acid (SEBS-g-MA) were investigated. Four silica fillers differing in size (nano- vs. micro-) and in surface properties (untreated vs. treated) were chosen as fillers. Elastomers SEBS and SEBS-g-MA were added as impact modifier and compatibilizer at the same time. The morphology of binary blends and ternary polymer composites was studied by different microscopy techniques. While in binary iPP/SEBS(-g-MA) blends prevails typical two phase morphology with iPP as matrix, the ternary composites revealed the wide spectrum of morphologies rather than one exclusive, depended primarily on interfacial properties. [1, 2] Both iPP/silica/SEBS(-g-MA) composites preferred compartmentalized morphology (as the variety of core-shell m.) with hydrophilic silica while with hydrophobic silica there is a wide spectrum of different morphologies. The spherulitic morphology of polypropylene matrix in iPP/silica/SEBS(-g-MA) composites was abrupt with the addition of silica and the final morphology was a result of two competitive effects: nucleation effect of filler and solidification effect of elastomer. Tensile and impact strength properties were mainly influenced by combined competitive effects of stiff filler and tough SEBS(-g-MA) elastomer. Both elastomers showed great impact modifying properties

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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