EFFECT OF ORGANOCLAY INCORPORATION ON THERMAL, PHYSICAL AND MORPHOLOGICAL PROPERTIES OF LLDPE NANOCOMPOSITES FOR ACTIVE FOOD PACKAGING APPLICATIONS

Active films based on nanocomposites from linear low-density polyethylene (LLDPE) were prepared by melting extrusion incorporating Cloisite 30B (5 wt.%) and thymol as active compound at two different concentrations: 2 and 4 wt.%. A complete thermal, structural characterization and antioxidant capaci...

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Autores principales:	TORRES,A, LÓPEZ DE DICASTILLO,C, RÍOS,M, BASTÍAS,I, GUARDA,A, GALOTTO,M. J
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2014
Materias:	linear low-density polyethylene thymol organoclay antioxidant activity nanocomposites
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000400011
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spelling	oai:scielo:S0717-970720140004000112015-01-09EFFECT OF ORGANOCLAY INCORPORATION ON THERMAL, PHYSICAL AND MORPHOLOGICAL PROPERTIES OF LLDPE NANOCOMPOSITES FOR ACTIVE FOOD PACKAGING APPLICATIONSTORRES,ALÓPEZ DE DICASTILLO,CRÍOS,MBASTÍAS,IGUARDA,AGALOTTO,M. J linear low-density polyethylene thymol organoclay antioxidant activity nanocomposites Active films based on nanocomposites from linear low-density polyethylene (LLDPE) were prepared by melting extrusion incorporating Cloisite 30B (5 wt.%) and thymol as active compound at two different concentrations: 2 and 4 wt.%. A complete thermal, structural characterization and antioxidant capacity of all blends was carried out. Extraction procedures revealed final concentrations of thymol in the film between 40-80 % of the thymol that was initially included in the films formulation. Materials with 2 and 4 % of thymol presented similar antioxidant capacity. XRD results indicated a slightly lower degree of intercalation in the nanocomposites with thymol, due probably to the lower compatibility between the hydrophilic character of the clays, and the hydrophobic thymol substance. The addition of the antioxidant improved slightly the thermal stability of the polymer.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.59 n.4 20142014-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000400011en10.4067/S0717-97072014000400011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	linear low-density polyethylene thymol organoclay antioxidant activity nanocomposites
spellingShingle	linear low-density polyethylene thymol organoclay antioxidant activity nanocomposites TORRES,A LÓPEZ DE DICASTILLO,C RÍOS,M BASTÍAS,I GUARDA,A GALOTTO,M. J EFFECT OF ORGANOCLAY INCORPORATION ON THERMAL, PHYSICAL AND MORPHOLOGICAL PROPERTIES OF LLDPE NANOCOMPOSITES FOR ACTIVE FOOD PACKAGING APPLICATIONS
description	Active films based on nanocomposites from linear low-density polyethylene (LLDPE) were prepared by melting extrusion incorporating Cloisite 30B (5 wt.%) and thymol as active compound at two different concentrations: 2 and 4 wt.%. A complete thermal, structural characterization and antioxidant capacity of all blends was carried out. Extraction procedures revealed final concentrations of thymol in the film between 40-80 % of the thymol that was initially included in the films formulation. Materials with 2 and 4 % of thymol presented similar antioxidant capacity. XRD results indicated a slightly lower degree of intercalation in the nanocomposites with thymol, due probably to the lower compatibility between the hydrophilic character of the clays, and the hydrophobic thymol substance. The addition of the antioxidant improved slightly the thermal stability of the polymer.
author	TORRES,A LÓPEZ DE DICASTILLO,C RÍOS,M BASTÍAS,I GUARDA,A GALOTTO,M. J
author_facet	TORRES,A LÓPEZ DE DICASTILLO,C RÍOS,M BASTÍAS,I GUARDA,A GALOTTO,M. J
author_sort	TORRES,A
title	EFFECT OF ORGANOCLAY INCORPORATION ON THERMAL, PHYSICAL AND MORPHOLOGICAL PROPERTIES OF LLDPE NANOCOMPOSITES FOR ACTIVE FOOD PACKAGING APPLICATIONS
title_short	EFFECT OF ORGANOCLAY INCORPORATION ON THERMAL, PHYSICAL AND MORPHOLOGICAL PROPERTIES OF LLDPE NANOCOMPOSITES FOR ACTIVE FOOD PACKAGING APPLICATIONS
title_full	EFFECT OF ORGANOCLAY INCORPORATION ON THERMAL, PHYSICAL AND MORPHOLOGICAL PROPERTIES OF LLDPE NANOCOMPOSITES FOR ACTIVE FOOD PACKAGING APPLICATIONS
title_fullStr	EFFECT OF ORGANOCLAY INCORPORATION ON THERMAL, PHYSICAL AND MORPHOLOGICAL PROPERTIES OF LLDPE NANOCOMPOSITES FOR ACTIVE FOOD PACKAGING APPLICATIONS
title_full_unstemmed	EFFECT OF ORGANOCLAY INCORPORATION ON THERMAL, PHYSICAL AND MORPHOLOGICAL PROPERTIES OF LLDPE NANOCOMPOSITES FOR ACTIVE FOOD PACKAGING APPLICATIONS
title_sort	effect of organoclay incorporation on thermal, physical and morphological properties of lldpe nanocomposites for active food packaging applications
publisher	Sociedad Chilena de Química
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000400011
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EFFECT OF ORGANOCLAY INCORPORATION ON THERMAL, PHYSICAL AND MORPHOLOGICAL PROPERTIES OF LLDPE NANOCOMPOSITES FOR ACTIVE FOOD PACKAGING APPLICATIONS

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