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TitleImprovement on the mechanical properties of cork composites using suberin as coupling agent through a reactive extrusion process
Author(s)Fernandes, E. M.
Aroso, Ivo Manuel Ascensão
Pires, R. A.
Correlo, V. M.
Pitkänen, P.
Koskimies, S.
Mano, J. F.
Reis, R. L.
Grafting agent
Mechanical properties
Polymer-matrix composites
Cork powder
Interfacial adhesions
Reactive extrusion process
Reactive extrusion
Composite materials
Coupling agents
Compression molding
Issue date21-Dec-2011
PublisherSociety of Plastics Engineers (SPE)
Abstract(s)New functionalized composite structures were prepared using low-density polyethylene (LDPE), cork powder and different suberins extracted from cork and birch outer bark as coupling agents to promote interfacial adhesion. The compounding was performed under reactive extrusion and samples processed by compression moulding. The morphology of the functionalized composites showed good adhesion between cork and the polymeric phase. The mechanical results confirm that the addition of suberin acts as coupling agent improving the strength and leads to cork-polymer composite materials with improved strain and lower modulus. When the suberin was added to the composition a slight increase on the composite density occurred. The new cork-polymer composites demonstrated that this technological approach is industrially appealing.
TypeConference paper
Publisher version
AccessOpen access
Appears in Collections:3B’s - Publicações em atas de conferências - indexadas no ISI Web of Science

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