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Influence of thermoplastic elastomers on adhesion in polyethylene-wood flour composites
RISE, Swerea, Swerea SICOMP.
Luleå University of Technology.
1998 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 68, no 11, 1845-1855 p.Article in journal (Refereed)
Abstract [en]

The mechanical properties of recycled low-density polyethylene/wood flour (LDPE/WF) composites are improved when a maleated triblock copolymer styrene-ethylene/butylene-styrene (SEBS-MA) is added as a compatibilizer. The composites' tensile strength reached a maximum level with 4 wt % SEBS-MA content. The compatibilizer had a positive effect on the impact strength and elongation at break but decreased the composites' stiffness. Dynamic mechanical thermal analysis (DMTA), a lap shear adhesion test, and a scanning electron microscope (SEM) were used to investigate the nature of the interfacial adhesion between the WF/SEBS and between the WF/ SEBS-MA. Tan δ peak temperatures for the various combinations showed interaction between the ethylene/butylene (EB) part of the copolymer and the wood flour in the maleated system. The shear lap test showed that adhesion between the wood and SEBS-MA is better than between the wood and SEBS. The electron microscopy study of the fracture surfaces confirmed good adhesion between the wood particles and the LDPE/SEBS-MA matrix. © 1998 John Wiley & Sons, Inc.

Place, publisher, year, edition, pages
1998. Vol. 68, no 11, 1845-1855 p.
Keyword [en]
Copolymer compatibilizer, Dynamic mechanical thermal properties, Molecular interaction, Morphology, Wood flour/thermoplastics composites
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13235OAI: oai:DiVA.org:ri-13235DiVA: diva2:973431
Available from: 2016-09-22 Created: 2016-09-22Bibliographically approved

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http://onlinelibrary.wiley.com/doi/10.1002/%28SICI%291097-4628%2819980613%2968:11%3C1845::AID-APP16%3E3.0.CO;2-T/abstract
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Journal of Applied Polymer Science
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