TY - GEN
T1 - Hydroxyl-functionalized polypropylenes - Crystallinity and structure
AU - Marszalek-Kempke, Jolanta E.
AU - Gupta, Sahil
AU - Cakmak, M.
AU - Weiss, R. A.
AU - Chung, T. C.
PY - 2013
Y1 - 2013
N2 - OH-modificd polypropylencs, PPOH, have intermolecular H-bonding between the OH groups that affect the polypropylene (PP) structure and influence its thermal properties. This paper discusses the effects of OH functionality on the crystalline structure and thermal properties of PPOH annealed in a partially melted state, which is typically used in the bixaxial orientation of PP for capacitor films. Biaxial orientation of PP improves its voltage breakdown strength [1]. During the stretching process, changes occur in the morphology of the PP due to re-crystallization, which influences the ability to stretch the film and achieve suitable orientation of the crystals. In this study, recrystallization of PPOH were observed during annealing, which changed the thickness of the crystalline lamellae, but did not alter the a-monoclinic crystal structure. Thermal annealing produced kebab-like crystals and the amount of crystallinity decreased with increasing annealing temperature.
AB - OH-modificd polypropylencs, PPOH, have intermolecular H-bonding between the OH groups that affect the polypropylene (PP) structure and influence its thermal properties. This paper discusses the effects of OH functionality on the crystalline structure and thermal properties of PPOH annealed in a partially melted state, which is typically used in the bixaxial orientation of PP for capacitor films. Biaxial orientation of PP improves its voltage breakdown strength [1]. During the stretching process, changes occur in the morphology of the PP due to re-crystallization, which influences the ability to stretch the film and achieve suitable orientation of the crystals. In this study, recrystallization of PPOH were observed during annealing, which changed the thickness of the crystalline lamellae, but did not alter the a-monoclinic crystal structure. Thermal annealing produced kebab-like crystals and the amount of crystallinity decreased with increasing annealing temperature.
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M3 - Conference contribution
AN - SCOPUS:84903541168
SN - 9781632665300
T3 - Annual Technical Conference - ANTEC, Conference Proceedings
SP - 2408
EP - 2411
BT - 71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013
PB - Society of Plastics Engineers
T2 - 71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013
Y2 - 22 April 2013 through 24 April 2013
ER -