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Thermal and viscoelastic behavior of polyurethane/polyvinylchloride blends
Author(s) -
Lavallée C.,
Carmel M.,
Utracki L. A.,
Szabo J. P.,
Keough I. A.,
Favis B. D.
Publication year - 1992
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760322210
Subject(s) - miscibility , materials science , thermoplastic polyurethane , composite material , polyurethane , polymer blend , thermoplastic elastomer , ternary operation , elastomer , viscoelasticity , polymer , ether , copolymer , organic chemistry , computer science , programming language , chemistry
The potential of melt processing polymer blends to prepare damping materials was investigated. Binary and ternary blends of polyvinylchloride (PVC) with thermoplastic polyurethane elastomers (TPU) were studied. The soft segments of the polyurethanes for the first series were of the ether type and of the ester type for the second series of blends. A series of polymer blends were prepared by mechanical melt mixing and the apparent miscibility was evaluated from the thermal, dielectric, and dynamic mechanical behavior as well as from transmission electron microscopy. Some samples exhibited a single damping peak at low PVC content, indicating miscibility of the blends at the detection scale of the test method. The relationship between the properties and the morphology of the blends was studied.