Biocomposites Based on Thermoplastic Starch Reinforced with Recycled Paper Cellulose Fibers

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Abstract:

Biocomposites sheets were prepared by compression molding from mixtures of corn starch plasticized by glycerol as matrix and cellulose fibers, extracted from used office paper, as reinforcement filler with contents ranging from 0 to 8% wt/wt of fibers to matrix. Properties of composites were determined by mechanical tensile test, differential scanning calorimetry, thermogravimetric analysis, water absorption measurement, and scanning electron microscopy. The results showed that higher fibers content raised the tensile strength and elastic modulus up to 109% and 112%, respectively, when compared to the non-reinforced thermoplastic starch (TPS). The addition of the fibers improved the thermal resistance and decreased the water absorption up to 63.6%. Scanning electron microscopy illustrated a good adhesion between matrix and fibers.

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[1] A.K. Mohanty, M. Misra, L.T. Drzal, Sustainable bio-composites from renewable resources: opportunities and challenges in the green materials world, J. Polym. Environ. 10 (2002) 19-26.

DOI: 10.4324/9781315793245-107

Google Scholar

[2] E.D.M. Teixeira, D. Pasquini, A.A.S. Curvelo, E. Corradini, M.N. Belgacem, A. Dufresne, Cassava bagasse cellulose nanofibrils reinforced thermoplastic cassava starch, Carbohyd. Polym. 78 (2009) 422-431.

DOI: 10.1016/j.carbpol.2009.04.034

Google Scholar

[3] L. Averous, N. Boquillon, Biocomposites based on plasticized starch: thermal and mechanical behaviours. Carbohyd. Polym. 56 (2004) 111-122.

DOI: 10.1016/j.carbpol.2003.11.015

Google Scholar

[4] I.M.G. Martins, S.P. Magina, L. Oliveira, C.S.R. Freire, A.J.D. Silvestre, C.P. Neto, A. Gandini, New biocomposites based on thermoplastic starch and bacterial cellulose, Compos. Sci. Technol. 69 (2009) 2163-2168.

DOI: 10.1016/j.compscitech.2009.05.012

Google Scholar

[5] L. Averous, C. Fringant, L. Moro, Plasticized starch-cellulose interactions in polysaccharide composites. Polymer. 42 (2001) 6571-6578.

DOI: 10.1016/s0032-3861(01)00125-2

Google Scholar

[6] A. Wattanakornsiri, S. Tongnunui, Sustainable green composites of thermoplastic starch and cellulose fibers. Songklanakarin J. Sci. Technol. 36 (2014) 149-161.

Google Scholar