About: Crystallization Kinetics of Polypropylene/Ethylene-Octene Copolymer Blends     Goto   Sponge   NotDistinct   Permalink

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  • Blends of polypropylene and ethylene-octene copolymers (EOC) were investigated by transmission electron microscopy, optical microscopy and DSC. The main focus was on phase morphology and crystallization for blends containing EOC with different octene content (28, 37 and 52 wt.%). Also, for a given octene content (37 wt.%), the effect of molecular weight (115, 180, 229k) of EOC on morphology was observed. The largest particles were found in the blend with EOC-28 and the smallest with EOC-52. This blend with the smallest particles exhibits the fastest crystallization kinetics by two independent methods, optical microscopy and DSC. This behavior was explained by a model. Crystallizing PP lamellae have to travel longer distance going around large particles which slows down overall crystallization growth rate. In the case of smaller particles, the obstacles are smaller and the crystallization is faster.
  • Blends of polypropylene and ethylene-octene copolymers (EOC) were investigated by transmission electron microscopy, optical microscopy and DSC. The main focus was on phase morphology and crystallization for blends containing EOC with different octene content (28, 37 and 52 wt.%). Also, for a given octene content (37 wt.%), the effect of molecular weight (115, 180, 229k) of EOC on morphology was observed. The largest particles were found in the blend with EOC-28 and the smallest with EOC-52. This blend with the smallest particles exhibits the fastest crystallization kinetics by two independent methods, optical microscopy and DSC. This behavior was explained by a model. Crystallizing PP lamellae have to travel longer distance going around large particles which slows down overall crystallization growth rate. In the case of smaller particles, the obstacles are smaller and the crystallization is faster. (en)
Title
  • Crystallization Kinetics of Polypropylene/Ethylene-Octene Copolymer Blends
  • Crystallization Kinetics of Polypropylene/Ethylene-Octene Copolymer Blends (en)
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  • Crystallization Kinetics of Polypropylene/Ethylene-Octene Copolymer Blends
  • Crystallization Kinetics of Polypropylene/Ethylene-Octene Copolymer Blends (en)
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  • RIV/70883521:28110/09:63508038!RIV10-MSM-28110___
http://linked.open...avai/riv/aktivita
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  • Z(MSM7088352102)
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  • 308621
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  • RIV/70883521:28110/09:63508038
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  • polypropylene; ethylene-octene copolymer; crystallization; phase morphology (en)
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  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [47D7C165F497]
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  • Polymer Testing
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http://linked.open...iv/tvurceVysledku
  • Inoue, Takashi
  • Ougizawa, Toshiaki
  • Svoboda, Petr
  • Svobodová, Dagmar
  • Slobodián, Petr
http://linked.open...ain/vavai/riv/wos
  • 000264696600016
http://linked.open...n/vavai/riv/zamer
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  • 0142-9418
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  • 28110
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