English Abstract |
Effects of Annealing Temperature on the Micro-Aggregation Structure
and Properties for Thermoplastic Polyurethane Elastomers Satoshi YAMASAKI Graduate School of Science and Technology R&D Center, Mitsui Takeda Chemicals, Inc., Sodegaura, Japan Daisuke NISHIGUCHI R&D Center, Mitsui Takeda Chemicals, Inc., Sodegaura, Japan Ken KOJIO Faculty of Engineering, Nagasaki University, Nagasaki, Japan Mutsuhisa FURUKAWA Graduate School of Science and Technology Nippon Gomu Kyokaishi,(2006),79(1),3-9 Original Paper in Japanese Abstract The effects of annealing temperature on the micro-aggregation structure, the mechanical and melting properties of thermoplastic polyurethane elastomer (TPU) were investigated. TPU was composed of poly{(tetramethylene adipate)-co-(hexamethylene adipate)} glycol, 4,4'-diphenylmethane diisocyanate and 1,4-butanediol units. The TPU sheets prepared by injection molding were annealed at various temperatures from 23 to 120 ![]() (Received on June 28, 2005) (Accepted on November 11, 2005) Keywords: Thermoplastic polyurethane elastomers, Annealing temperature, Micro-aggregation structure, Mechanical properties, Melting properties, Critical gel temperature, Uniaxial elongational viscosity, Strain hardening |
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