title: Elaboration, morphology and properties of starch/polyester nano-biocomposites based on sepiolite clay.
abstract: The incorporation of nano-sized sepiolite clays into thermoplastic starch/poly(butylene adipate-co-terephthalate) (TPS/PBAT) blends has been investigated with the goal of improving the matrix properties. TPS/PBAT nano-biocomposites were elaborated with two different proportions of the polymeric phases. The influence of the sepiolite nanoclays on the mechanical, thermal and structural properties of the corresponding blends was evaluated. SEM images confirmed the good dispersion of the sepiolite clay, with a low occurrence of small aggregates in the polymeric matrix. Wide-angle X-ray diffraction showed no significant alteration of the crystalline structures of PBAT and starch induced by the sepiolite clay. The addition of sepiolite slightly affected the thermal degradation of the nano-biocomposites; however, the mechanical tests revealed an increase in some mechanical properties, demonstrating that sepiolite is a promising nanofiller for TPS-based materials.
authors.affiliation: Departamento de Ciência e Tecnologia de Alimentos, Centro de Ciências Agrárias, Universidade Estadual de Londrina, PO Box 6001, 86051-980 Londrina, PR, Brazil. Electronic address: jubonametti@uel.br.
authors.forename: J B
authors.initials: JB
authors.lastname: Olivato
authors.affiliation: Departamento de Engenharia de Materiais, Universidade Federal de São Carlos, 13565-905 São Carlos, Brazil.
authors.forename: J
authors.initials: J
authors.lastname: Marini
authors.affiliation: BioTeam/ICPEES-ECPM, UMR 7515, Université de Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 2, France.
authors.forename: E
authors.initials: E
authors.lastname: Pollet
authors.affiliation: Departamento de Ciência e Tecnologia de Alimentos, Centro de Ciências Agrárias, Universidade Estadual de Londrina, PO Box 6001, 86051-980 Londrina, PR, Brazil.
authors.forename: F
authors.initials: F
authors.lastname: Yamashita
authors.affiliation: Departamento de Ciência e Tecnologia de Alimentos, Centro de Ciências Agrárias, Universidade Estadual de Londrina, PO Box 6001, 86051-980 Londrina, PR, Brazil.
authors.forename: M V E
authors.initials: MV
authors.lastname: Grossmann
authors.affiliation: BioTeam/ICPEES-ECPM, UMR 7515, Université de Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 2, France.
authors.forename: L
authors.initials: L
authors.lastname: Avérous
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry*; D017633:Magnesium Silicates / Q000737:chemistry*; D011091:Polyesters / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D013213:Starch / Q000737:chemistry*
chemical_list: D001672:Biocompatible Materials; D017633:Magnesium Silicates; D011091:Polyesters; D011108:Polymers; D013213:Starch; C001671:magnesium trisilicate
keywords: Biodegradable polymers; Multiphase systems; Nanofillers; Poly(butylene adipate-co-terephthalate); Thermoplastic starch