Effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals

Fully bio-based nanocomposites were prepared using starch nanoparticles obtained by acidic hydrolysis of waxy maize starch granules as reinforcement. The same type of starch, which contains 99 wt.% amylopectin, was used to prepare glycerol plasticized and unplasticized matrices. The X-ray diffractio...

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Detalles Bibliográficos
Autores principales:	García, N.L., Ribba, L., Dufresne, A., Aranguren, M., Goyanes, S.
Formato:	JOUR
Materias:	Biodegradable Glycerol Nanocomposites Nanocrystals Starch Waxy maize Acidic hydrolysis Bio-based Crystalline structure Fibrillar structures Permeability increase Reinforced material Starch nanocrystals Starch nanoparticles Storage moduli Thermoplastic starch Waxy maize starch Diffraction Nanoparticles Scanning electron microscopy X ray diffraction Zea mays
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_01448617_v84_n1_p203_Garcia
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_01448617_v84_n1_p203_Garcia
record_format	dspace
spelling	todo:paper_01448617_v84_n1_p203_Garcia2023-10-03T14:59:49Z Effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals García, N.L. Ribba, L. Dufresne, A. Aranguren, M. Goyanes, S. Biodegradable Glycerol Nanocomposites Nanocrystals Starch Waxy maize Acidic hydrolysis Bio-based Biodegradable Crystalline structure Fibrillar structures Permeability increase Reinforced material Starch nanocrystals Starch nanoparticles Storage moduli Thermoplastic starch Waxy maize Waxy maize starch Diffraction Glycerol Nanocomposites Nanocrystals Nanoparticles Scanning electron microscopy X ray diffraction Starch Zea mays Fully bio-based nanocomposites were prepared using starch nanoparticles obtained by acidic hydrolysis of waxy maize starch granules as reinforcement. The same type of starch, which contains 99 wt.% amylopectin, was used to prepare glycerol plasticized and unplasticized matrices. The X-ray diffraction pattern of the plasticized reinforced materials displays both A and B-type peaks, showing that the crystalline structure of the nanocrystals was not affected by processing. The storage modulus of the composite material increases, with respect to the unfilled film, by 470% at 50 °C, while the permeability increases by 70%. This is probably due to a good association of glycerol with the nanoparticles leading to a fibrillar structure, studied by scanning electron microscopy of plasticized and unplasticized composites. © 2010 Elsevier Ltd. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01448617_v84_n1_p203_Garcia
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Biodegradable Glycerol Nanocomposites Nanocrystals Starch Waxy maize Acidic hydrolysis Bio-based Biodegradable Crystalline structure Fibrillar structures Permeability increase Reinforced material Starch nanocrystals Starch nanoparticles Storage moduli Thermoplastic starch Waxy maize Waxy maize starch Diffraction Glycerol Nanocomposites Nanocrystals Nanoparticles Scanning electron microscopy X ray diffraction Starch Zea mays
spellingShingle	Biodegradable Glycerol Nanocomposites Nanocrystals Starch Waxy maize Acidic hydrolysis Bio-based Biodegradable Crystalline structure Fibrillar structures Permeability increase Reinforced material Starch nanocrystals Starch nanoparticles Storage moduli Thermoplastic starch Waxy maize Waxy maize starch Diffraction Glycerol Nanocomposites Nanocrystals Nanoparticles Scanning electron microscopy X ray diffraction Starch Zea mays García, N.L. Ribba, L. Dufresne, A. Aranguren, M. Goyanes, S. Effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals
topic_facet	Biodegradable Glycerol Nanocomposites Nanocrystals Starch Waxy maize Acidic hydrolysis Bio-based Biodegradable Crystalline structure Fibrillar structures Permeability increase Reinforced material Starch nanocrystals Starch nanoparticles Storage moduli Thermoplastic starch Waxy maize Waxy maize starch Diffraction Glycerol Nanocomposites Nanocrystals Nanoparticles Scanning electron microscopy X ray diffraction Starch Zea mays
description	Fully bio-based nanocomposites were prepared using starch nanoparticles obtained by acidic hydrolysis of waxy maize starch granules as reinforcement. The same type of starch, which contains 99 wt.% amylopectin, was used to prepare glycerol plasticized and unplasticized matrices. The X-ray diffraction pattern of the plasticized reinforced materials displays both A and B-type peaks, showing that the crystalline structure of the nanocrystals was not affected by processing. The storage modulus of the composite material increases, with respect to the unfilled film, by 470% at 50 °C, while the permeability increases by 70%. This is probably due to a good association of glycerol with the nanoparticles leading to a fibrillar structure, studied by scanning electron microscopy of plasticized and unplasticized composites. © 2010 Elsevier Ltd. All rights reserved.
format	JOUR
author	García, N.L. Ribba, L. Dufresne, A. Aranguren, M. Goyanes, S.
author_facet	García, N.L. Ribba, L. Dufresne, A. Aranguren, M. Goyanes, S.
author_sort	García, N.L.
title	Effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals
title_short	Effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals
title_full	Effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals
title_fullStr	Effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals
title_full_unstemmed	Effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals
title_sort	effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals
url	http://hdl.handle.net/20.500.12110/paper_01448617_v84_n1_p203_Garcia
work_keys_str_mv	AT garcianl effectofglycerolonthemorphologyofnanocompositesmadefromthermoplasticstarchandstarchnanocrystals AT ribbal effectofglycerolonthemorphologyofnanocompositesmadefromthermoplasticstarchandstarchnanocrystals AT dufresnea effectofglycerolonthemorphologyofnanocompositesmadefromthermoplasticstarchandstarchnanocrystals AT arangurenm effectofglycerolonthemorphologyofnanocompositesmadefromthermoplasticstarchandstarchnanocrystals AT goyaness effectofglycerolonthemorphologyofnanocompositesmadefromthermoplasticstarchandstarchnanocrystals
_version_	1807318464611745792

Effect of glycerol on the morphology of nanocomposites made from thermoplastic starch and starch nanocrystals

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