A study on the crystallization behaviour of polypropylene, polyethylene and their blends by dynamic mechanical and thermal methods

作者: J.W. Teh , H.P. Blom , A. Rudin

DOI: 10.1016/0032-3861(94)90842-7

关键词: Differential scanning calorimetryPolyethyleneAvrami equationNucleationOptical microscopeCrystallizationCrystallization of polymersPolymer chemistryPolypropyleneMaterials scienceComposite material

摘要: Abstract Studies on the crystallization of polymers are usually carried out by dilatometry, differential scanning calorimetry (d.s.c.) and optical microscopy. These methods have been widely used in analysis kinetics using Avrami equation. Direct determination nucleation rate density is only possible microscope technique. We employed a new technique for studying behaviour dynamic mechanical method. This method capable detecting onset nucleation. Semiquantitative data initial may also be deduced this Results from cross-compared with d.s.c. polypropylene, polyethylene their blends, shown to mutually consistent.

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