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A thermogravimetric approach to study the influence of a biodegradation in soil test to a Poly(lactic acid)
Instituto de Tecnología de Materiales, Escuela Técnica Superior de Ingeniería del Diseño, Universidad Politécnica de Valencia, Camino de Vera, Valencia, Spain.ORCID iD: 0000-0002-0252-337x
2008 (English)In: Macromolecular Symposia, ISSN 1022-1360, E-ISSN 1521-3900, Vol. 272, no 1, p. 93-99Article in journal (Refereed) Published
Abstract [en]

An amorphous grade Poly (lactic acid) (PLA) was selected for an accelerated burial in soil test during 450 days. Thermogravimetric analyses were carried out to study the effects of degradation in soil on the thermal stability and the thermal decomposition kinetics. A single stage decomposition process is observed for all degradation times. It is shown that the thermal stability of PLA is slightly affected by degradation in soil. Concerning the study of the thermal decomposition kinetics, Criado master curves were plotted from experimental data to focus the study of the thermodegradation kinetic model.The kinetic methods proposed by Broido and Chang were used to calculate the apparent activation energies (Ea) of the degradation mechanism. These results were compared to the Ea values obtained by the method developed by Coats and Redfern in order to prove the applicability of the former methods to the kinetic study. As expected, non-linear tendency is found out for Ea variation along the degradation times, which can be explained as an evolution by stages. Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.

Place, publisher, year, edition, pages
2008. Vol. 272, no 1, p. 93-99
Keywords [en]
Activation energy, Biodegradation in soil, Kinetics (polim.), Poly(lactic acid), Thermogravimetry analysis (TGA), ABS resins, Acids, Biochemistry, Biodegradation, Body fluids, Decomposition, Gravimetric analysis, Lactic acid, Microbiology, Organic acids, Photoresists, Pyrolysis, Soil testing, Soils, Thermodynamic stability, Thermogravimetric analysis, Apparent activation energies, Decomposition processes, Degradation mechanisms, Degradation times, Experimental datums, Kinetic methods, Kinetic studies, Master curves, Polylactic acids, Single stages, Soil tests, Thermal decomposition kinetics, Thermal stabilities, Degradation
Identifiers
URN: urn:nbn:se:his:diva-15884DOI: 10.1002/masy.200851213Scopus ID: 2-s2.0-55849148364OAI: oai:DiVA.org:his-15884DiVA, id: diva2:1229197
Note

Cited By :7; Export Date: 29 June 2018; Conference Paper; CODEN: MSYME; Correspondence Address: Ribes-Greus, A.; Instituto de Tecnología de Materiales, Escuela Técnica Superior de Ingeniería del Diseño, Universidad Politécnica de Valencia, Camino de Vera, s/n, 46022, Valencia, Spain; email: aribes@ter.upv.es; References: H. Tsuji, Polylactides, Biopolymers. in: Polyesteres III. Applications and Commercial Products, Y. S. Doi, A., Eds., Wiley-VCH, Weinheim 2002, p. 129-177; Naltove, N.H., (1998) Plast. Tech, 44, p. 13; Santonja-Blasco, L., Thermal characterization of polyethylene blends with a biodegradable master-bach subjected to thermo-oxidative treatment and subsequent soil burial test (2007) Journal of Applied Polymer Science, , Pendent of publication; Contat-Rodrigo, L., Ribes-Greus, A., Thermal and Viscoelastic Properties of some commercial Starch products (2003) Journal of Applied Polymer Science, 88, pp. 1242-1251; Contat-Rodrigo, L., Ribes-Greus, A., Morphological Changes. I (2002) Journal of Applied Polymer Science, 83, pp. 1683-1691. , Biodegradation Studies of LDPE Filled with Biodegradable Additives; Vilaplana, F., Ribes-Greus, A., Karlsson, S., Degradation of recycled high-Impact polystyrene. Simulation by reprocessing and thermo-oxidation (2006) Polymer Degradation and Stability, 91 (9), pp. 2163-2170; Vilaplana, F., Ribes-Greus, A., Karlsson, S., Analytical strategies for the quality assessment of recycled high-Impact polystyrene: A combination of thermal analysis, vibrational spectroscopy, and chromatography (2007) Analytical Chimica Acta, Available online, , 27 April, In Press, Corrected Proof; Contat-Rodrigo, L., Ribes-Greus, A., Imrie, C.T., Thermal Analysis of High-Density Polyethylene and Low-Density Polyethylene with Enhanced Biodegradability (2002) Journal of Applied Polymer Science, 86, pp. 764-772; Chang, W.L., (1994) J. of Apply. Polym. Sci, 53, p. 1759; Broido, A., A simple, sensitive graphical method of treating thermogravimetric analysis data (1761) Journal of Polymer Science Part A-2: Polymer Physics, 7 (10). , 1969; Coats, A., Redfern, A., (1964) Nature, 68 (201), p. 4914; Doyle, C.D., (1965) Nature, 207, p. 290; Criado, J.M., Kinetic Analysis of DTG data from master curves (1978) Thermochimica Acta, 24, pp. 186-189; Testing of Plastics. Influence of fungi and bacteria, Visual Evaluation. Change In Mass and Physical (1984), DIN 53739, Properties; Kopinke, F.D., Thermal decomposition of biodegradable polyesters-II. Poly(lactic acid) (1996) Polymer Degradation and Stability, 53 (3), pp. 329-342; Brown, M., Introduction to Thermal Analysis (2001) Techniques and Applicattions, , Second Edition, Kluwer Academic Publishers, Secaucus, NJ, USA; Ramis, X.C., Salla, A., Morancho, J.M., Vallés, A., Contat, L., Ribes, A., Thermal Degradation of Polypropylene/starch-based materials with enhanced biodegradability (2004) Polymer Degradation & Stability, 86, pp. 483-491; Liu, B.Z., Wang, X., Wang, F., Thermal Degradation Kinetics of Poly(propylene carbonate) Obtained from the Copolymerization of Carbon Dioxide and Propylene Oxide (2003) J. of Apply. Poiym. Sci, 90, pp. 947-953

Available from: 2018-06-29 Created: 2018-06-29 Last updated: 2018-06-29

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