Journal
POLYMER
Volume 49, Issue 5, Pages 1285-1296Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2008.01.028
Keywords
microfibrillated cellulose; surface treatment; epoxy
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Microfibrillated cellulose (MFC) possessing a 'web-like' morphology was successfully modified with three different coupling agents: 3-aminopropyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane, and a titanate coupling agent (Lica 38). The surface modification was confirmed using infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), environmental scanning electron microscopy (ESEM), and contact angle measurements. These modifications changed the surface character of MFC from hydrophilic to hydrophobic. The untreated and treated MFC were successfully incorporated into an epoxy resin system using acetone as the solvent. Better and stronger adhesion between the microfibrils and the epoxy polymer matrix was observed for the treated fibers, which resulted in better mechanical properties of the composite materials. (c) 2008 Elsevier Ltd. All rights reserved.
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