Talc nanoparticles influence on thermoplastic corn starch film properties

Nanocomposite films of TPS with talc particles were obtained by thermo-compression in order to study the effect of this filler on structure, optical, and thermal properties. TPS-talc films showed good appearance and homogeneous thickness. Talc addition increased the amount of rigid phase of nanocomp...

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Detalles Bibliográficos
Autores principales: López, Olivia Valeria, Castillo, Luciana Andrea, Zaritzky, Noemí Elisabet, Barbosa, Silvia Elena, Villar, Marcelo Armando, García, María Alejandra
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Exactas
Química
Thermoplastic corn starch
Talc nanoparticles
Films
Microstructural characterization
Optical properties
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100740
https://ri.conicet.gov.ar/11336/13458
https://www.sciencedirect.com/science/article/pii/S2211812815000838
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-100740
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Thermoplastic corn starch
Talc nanoparticles
Films
Microstructural characterization
Optical properties
spellingShingle Ciencias Exactas
Química
Thermoplastic corn starch
Talc nanoparticles
Films
Microstructural characterization
Optical properties
López, Olivia Valeria
Castillo, Luciana Andrea
Zaritzky, Noemí Elisabet
Barbosa, Silvia Elena
Villar, Marcelo Armando
García, María Alejandra
Talc nanoparticles influence on thermoplastic corn starch film properties
topic_facet Ciencias Exactas
Química
Thermoplastic corn starch
Talc nanoparticles
Films
Microstructural characterization
Optical properties
description Nanocomposite films of TPS with talc particles were obtained by thermo-compression in order to study the effect of this filler on structure, optical, and thermal properties. TPS-talc films showed good appearance and homogeneous thickness. Talc addition increased the amount of rigid phase of nanocomposite films, thus their cross-sections resulted more irregular than those of TPS ones. Talc preferential orientation within matrix and good compatibility between particles and TPS were evidenced. TEM observation showed scattered randomly dispersed individual talc platelets. Matrix crystallinity degree was not significantly affected by particles presence. Nanocomposite films were optically transparent due to the laminar morphology and nanosized particles. Materials microstructure presented glycerol- and starch-rich domains. Talc incorporation higher than 3 % w/w increased softening resistance of nanocomposites as stated by DMA assays. TPS relaxation temperature of glycerol-rich phase was shifted to higher values since talc nanoparticles reduce starch chains mobility.
format Articulo
Articulo
author López, Olivia Valeria
Castillo, Luciana Andrea
Zaritzky, Noemí Elisabet
Barbosa, Silvia Elena
Villar, Marcelo Armando
García, María Alejandra
author_facet López, Olivia Valeria
Castillo, Luciana Andrea
Zaritzky, Noemí Elisabet
Barbosa, Silvia Elena
Villar, Marcelo Armando
García, María Alejandra
author_sort López, Olivia Valeria
title Talc nanoparticles influence on thermoplastic corn starch film properties
title_short Talc nanoparticles influence on thermoplastic corn starch film properties
title_full Talc nanoparticles influence on thermoplastic corn starch film properties
title_fullStr Talc nanoparticles influence on thermoplastic corn starch film properties
title_full_unstemmed Talc nanoparticles influence on thermoplastic corn starch film properties
title_sort talc nanoparticles influence on thermoplastic corn starch film properties
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/100740
https://ri.conicet.gov.ar/11336/13458
https://www.sciencedirect.com/science/article/pii/S2211812815000838
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bdutipo_str Repositorios
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