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Microfibrillated cellulose reinforced poly(vinyl alcohol) composites
Learning Institute, King Mongkut's University of Technology Thonburi.
School of Materials, University of Manchester.
College of Engineering, Mathematics and Physical Sciences, University of Exeter.
2013 (English)In: Advanced Materials Research, ISSN 1022-6680, E-ISSN 1662-8985, Vol. 747, 359-362 p.Article in journal (Refereed) Published
Abstract [en]

Microfibrillated cellulose (MFC) was successfully prepared from lyocell fibers using combined homogenization and sonication treatments. MFC fibrils with a mean diameter of ~365 nm were observed, after the lyocell fibers with diameters of ~10 μm were mechanically treated for 60 min. Poly(vinyl alcohol) (PVA) composites reinforced with MFC were then fabricated using a solvent casting method. Physical and mechanical properties of the MFC reinforced PVA composites were investigated. An increase of ~13 and ~34% of tensile strength and Young's modulus was observed for the 3 wt% MFC reinforced composites, compared to those of the pure PVA. Raman spectroscopy was also employed to study the deformation micromechanics of the MFC reinforced PVA composites. The position of the Raman peak initially located at ~1095 cm-1, corresponding to the C-O ring stretching and C-O-C glycosidic bond stretching modes, was recorded. During tensile deformation, this peak was observed to shift towards a lower wavenumber position, indicating stress-transfer between the resin and the fibrils.

Place, publisher, year, edition, pages
Trans Tech Publications Inc., 2013. Vol. 747, 359-362 p.
National Category
Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
URN: urn:nbn:se:ltu:diva-65398DOI: 10.4028/www.scientific.net/AMR.747.359Scopus ID: 2-s2.0-84884752494OAI: oai:DiVA.org:ltu-65398DiVA: diva2:1136774
Conference
4th International Conference on Multi-Functional Materials and Structures, MFMS 2013, Sathorn-Taksin, Bangkok, Thailand, 14-17 July 2013
Available from: 2017-08-29 Created: 2017-08-29 Last updated: 2017-08-29Bibliographically approved

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