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dc.contributor.authorGalicia Garcia, Tomás
dc.contributor.authorMartínez Bustos, F
dc.contributor.authorJiménez Arévalo, Omar
dc.contributor.authorArencón Osuna, David
dc.contributor.authorGamez Pérez, José
dc.contributor.authorMartínez Benasat, Antonio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.identifier.citationGalicia-García, T. [et al.]. Films of native and modified starch reinforced with fiber: influence of some extrusion variabels using response surface methodology. "Journal of applied polymer science", 25 Octubre 2012, vol. 126, núm. S1, p. E326-E335.
dc.description.abstractCorn starch (native and phosphorylated) and potato films containing glycerol as plasticizer, and bagasse sugar cane as fiber, were produced by extrusion-calendering process, and characterized for the mechanical properties (tensile stress at rupture rr, elongation at break eb, and Young’s modulus E), water disintegration index (WDI), water absorption capacity (WAC), and luminosity. The evaluated processing variables were: feed moisture, fiber content, and type of starch. The response surface methodology was applied to analyze, and the model of significance was justified by a variance analysis (F-test). The inclusion of fiber provides a mechanical reinforcement to the starch matrix favoring the elongation at break (eb) in thickness films (280–350 lm). Samples formulated with potato starch within the values of feed moisture 18.25, 20.5, and 5 wt % of fiber content, showed an increment in values of tensile stress at rupture (3.80–4.4 MPa) and Young’s modulus (78.47–68.04 MPa). Corn starch films with high fiber content (10%) and low feed moisture (18.25%) values showed a decrement in elongation at break (12.93%). WAC and WDI were low with minimum and intermediate levels of feed moisture and fiber content (0–5%). Luminosity values were an indicative that do not exist degradation in film materials due to condition extrusion process used.
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials::Assaigs mecànics
dc.subject.lcshBiopolymers--Mechanical properties
dc.titleFilms of native and modified starch reinforced with fiber: influence of some extrusion variabels using response surface methodology
dc.subject.lemacBiopolímers -- Propietats mecàniques
dc.contributor.groupUniversitat Politècnica de Catalunya. POLYCOM - Polimers i compòsits: tecnologia
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorGalicia-García, T.; Martínez-Bustos, F.; Jiménez-Arevalo, O.; Arencon, D.; Gamez-Pérez, J.; Martinez, A.
upcommons.citation.publicationNameJournal of applied polymer science

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