Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/35584

TitleProcessing of conductive filled polymers using microinjection
Author(s)Pereira, A. G.
Vieira, M. T.
Pontes, A. J.
KeywordsMicroinjection
Sputtering
Composite materials
Metal film
Issue date2011
Abstract(s)Polystyrene granules were coated by sputtering with an innovative film of stainless steel obtaining this way a composite. To compare results it was necessary to prepare two different composites, mixing polymer granules with steel fibers mechanically in a drum. Microinjection molding is a processing technique that allowed obtaining a representative sample of each composite. Scanning electron microscope (SEM) allowed the characterization of the coating thickness while the dispersion and distribution of metal particles were analyzed by optical microscopy in polarized light. Results showed a uniform thickness of the coating and good dispersion of the reinforcements in the matrix. Electrical and mechanical properties of the composites were characterized by measuring the electrical resistivity and flexural tests. Considerable values of conductivity were exhibited in composites with carbon nanotubes and a slight increase in the modulus of the polymers due to reinforcement incorporation was noticed.
TypeConference paper
URIhttp://hdl.handle.net/1822/35584
Peer-Reviewedyes
AccessOpen access
Appears in Collections:IPC - Textos completos em actas de encontros científicos internacionais com arbitragem

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