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Titolo:
THE INFLUENCE OF A SBS COMPATIBILIZER IN POLYETHYLENE-WOOD FLOUR COMPOSITES
Autore:
OKSMAN K; LINDBERG H;
Indirizzi:
SWEDISH INST COMPOSITES,BOX 271 S-94126 PITEA SWEDEN LULEA UNIV TECHNOL,DEPT WOOD TECHNOL SKELLEFTEA SWEDEN
Titolo Testata:
Holzforschung
fascicolo: 6, volume: 52, anno: 1998,
pagine: 661 - 666
SICI:
0018-3830(1998)52:6<661:TIOASC>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
MECHANICAL-PROPERTIES; POLYPROPYLENE COMPOSITES; SYNTHETIC-POLYMERS; MORPHOLOGY; POLYSTYRENE; FIBER;
Keywords:
WOOD FLOUR THERMOPLASTIC COMPOSITE; COPOLYMER COMPATIBILIZER; TRANSMISSION ELECTRON MICROSCOPY (TEM); DYNAMIC MECHANICAL THERMAL ANALYSIS (DMTA);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
K. Oksman e H. Lindberg, "THE INFLUENCE OF A SBS COMPATIBILIZER IN POLYETHYLENE-WOOD FLOUR COMPOSITES", Holzforschung, 52(6), 1998, pp. 661-666

Abstract

A styrene-butadiene-styrene (SBS) block copolymer has been used as a compatibilizer in a low density polyethylene/wood flour (LDPE/WF) composite system. Dynamic mechanical thermal analysis (DMTA) and a transmission electron microscopy (TEM) were used to investigate the interfacial properties in the composites. A high resolution study of the composite microstructure, and especially of the interfaces between the wood particles and LDPE matrix, indicated that the SBS compatibilizer was located at the interface region between the wood particles and LDPE matrix and partially covered the wood particle surfaces. The SBS was alsofound in the LDPE matrix. The unsaturated part of the copolymer was stained with osmium(VIII)tetraoxide (OsO4) to enhance contrast and to allow it to be detectable in TEM. Dynamic mechanical measurements confirmed interaction between polystyrene (PS) and wood in the PE/PS/WF system. The tan d peak of PS was shifted about 10 degrees C to a higher temperature and also broadened when wood flour was added in the LDPE/PSblend.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 22:23:31