20.500.12556/DKUM-53308 Morfologija mešanic PP/PS, kompatibiliziranih z blokkopolimerom SBS Morphology of PP/PS blends compatibilized with SBS block copolymer Nemešljivi polimerni mešanici polipropilena (PP) in polistirena (PS) smo dodajali blokkopolimer poli(stiren-b-butadien-b-stiren) (SBS) kot kompatibilizator. S presevno elektronsko mikroskopijo (TEM) in širokokotno rentgensko difrakcijo (WAXD) smo preučevali morfologijo binarnih mešanic PP/PSin PP/SBS ter ternarnih mešanic PP/PS/SBS. TEM-analiza je pokazala, da so v matični fazi PP dispergirani agregirani delci PS, ki jih obdaja SBS. SBS istočasno povezuje matično in dispergirano fazo. Z WAXD analizo je bilo ugotovljeno, da poleg tega dodatek SBS k homopolimeru PP in mešanicam PP/PS sistematično spreminja stopnjo kristaliničnosti in velikost ter orientacijo kristalitov PP, kar kaže na nedvomni vpliv SBS na kristalizacijo PP. Morphological properties of immiscible blends of polypropylene (PP) and polystyrene (PS) with poly(styrene-b-butadiene-b-styrene) (SBS) block copolymer as a compatibilizer were studied by transmission electron microscopy(TEM) and wide angle X-ray diffraction (WAXD). TEM analysis revealed that in PP matrix dispersed aggregated PS particles are joined together with SBS shells. SBS also improves the adhesion between matrix and dispersed phase. addition of SBS to pure PP, or to PP/PS blends, changes degree of crystallinity, crystallite size and orientation systematically, indicating an obvious influence of SBS on PP crystallization behavior. kemija kompatibilnost morfologija polimeri polipropilen polistiren true false false Inštitut za kovinske materiale in tehnologije Slovenski jezik Angleški jezik Delo ni kategorizirano 2015-07-10 20:00:45 2015-07-10 20:00:45 2022-06-03 03:09:22 2019-07-11 08:06:52 1998 0 0 str. 81-84 št. 1/2 Letn. 32 1998 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 54 31742209 4080924 1318-0010 URN:SI:UM:DK:IXXBQGUO http://www.dlib.si/details/URN:NBN:SI:doc-RB3B650G 1 https://dk.um.si/Dokument.php?lang=slv&id=77868 Ekonomsko-poslovna fakulteta 0 0 0