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Type: Artigo de periódico
Title: Eucalyptus Kraft Pulp Fibers As An Alternative Reinforcement Of Silicone Composites: I. Characterization And Chemical Modification Of Eucalyptus Fibers With Organosilane Coupling Agent
Author: Redondo S.U.A.
Radovanovic E.
Gonalves M.C.
Yoshida I.V.P.
Abstract: In this study, bleached Eucalyptus fibers obtained by a Kraft pulping process were characterized prior to and after chemical modification with a silane coupling agent, vinyltriethoxysilane, for use as an alternative additive in composites based on silicone. The presence of a silane coating on the fiber surface was observed by infrared, energy dispersive, and X-ray photoelectron spectroscopies. The morphology of the fibers was investigated by field emission scanning electron microscopy. The untreated fibers were ribbon-shaped and had a rough surface, due to the presence of fibrils. The coating reaction conducted in ethanol gave rise to loose fibrils and a more rough surface compared with those of untreated fibers. A smoother surface was observed when fibers were modified in tetrahydrofuran. The surface topography of the fibers was also examined by atomic force microscopy. © 2002 Wiley Periodicals, Inc. J. Appl. Polym. Sci.
Rights: fechado
Identifier DOI: 10.1002/app.10905
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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