LOW DENSITY POLYETHYLENE (LDPE) NANOCOMPOSITES WITH PASSIVE AND ACTIVE BARRIER PROPERTIES

Nanocomposites based on Low Density Polyethylene (LDPE) containing organically modified montmorillonite (OMMT) and polyethylene grafted with maleic anhydride (PE-g-MA) were obtained by the mixing molten state method at 130 °C (LDPE / PE-g-MA / Cv / OMMT). Furthermore, in order to obtain a material w...

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Autores principales:	MONICA A,PÉREZ, BERNABÉ L,RIVAS, KARLA A,GARRIDO-MIRANDA, VÍCTOR H.,CAMPOS-REQUENA, MIGUEL,MARTÍNEZ, JOHANNA,CASTAÑO, ÁLVARO,MALDONADO
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2014
Materias:	Low Density Polyethylene Nanocomposites Carvacrol Montmorillonite Tensile properties Crystallization Oxygen permeability Antimicrobial activity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200009
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spelling	oai:scielo:S0717-970720140002000092014-11-05LOW DENSITY POLYETHYLENE (LDPE) NANOCOMPOSITES WITH PASSIVE AND ACTIVE BARRIER PROPERTIESMONICA A,PÉREZBERNABÉ L,RIVASKARLA A,GARRIDO-MIRANDAVÍCTOR H.,CAMPOS-REQUENAMIGUEL,MARTÍNEZJOHANNA,CASTAÑOÁLVARO,MALDONADO Low Density Polyethylene Nanocomposites Carvacrol Montmorillonite Tensile properties Crystallization Oxygen permeability Antimicrobial activity Nanocomposites based on Low Density Polyethylene (LDPE) containing organically modified montmorillonite (OMMT) and polyethylene grafted with maleic anhydride (PE-g-MA) were obtained by the mixing molten state method at 130 °C (LDPE / PE-g-MA / Cv / OMMT). Furthermore, in order to obtain a material with active barrier properties, carvacrol (Cv) was incorporated into the nanocomposite (LDPE / PE-g-MA / Cv / OMMT). Carvacrol is an essential oil component with a high antimicrobial, antifungal, and antiparasitic capability. The nanocomposites were characterized by XRD, DSC, TGA, oxygen permeability, and tensile test. The nanocomposites without Cv (LDPE / PE-g-MA / OMMT) showed an intercalated morphology (confirmed by the X ray diffraction analysis), an improved percentage of crystallinity and a reduced permeability to oxygen (25%) as compared with LDPE . The rigidity of the resulting material correlated with the clay content as expected. The nanocomposite containing Cv (LDPE / PE-g-MA / Cv / OMMT) also show intercalated morphology with a greater displacement between the clay layers as compared with the nanocomposite without Cv produced by intercalation of the antimicrobial agent between the layers. The antimicrobial activity of (LDPE / PE-g-MA / Cv / OMMT) was observed by the reduction or inhibition on bacterial (Escherichia coli and Staphylococcus aureus) growth.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.59 n.2 20142014-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200009en10.4067/S0717-97072014000200009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Low Density Polyethylene Nanocomposites Carvacrol Montmorillonite Tensile properties Crystallization Oxygen permeability Antimicrobial activity
spellingShingle	Low Density Polyethylene Nanocomposites Carvacrol Montmorillonite Tensile properties Crystallization Oxygen permeability Antimicrobial activity MONICA A,PÉREZ BERNABÉ L,RIVAS KARLA A,GARRIDO-MIRANDA VÍCTOR H.,CAMPOS-REQUENA MIGUEL,MARTÍNEZ JOHANNA,CASTAÑO ÁLVARO,MALDONADO LOW DENSITY POLYETHYLENE (LDPE) NANOCOMPOSITES WITH PASSIVE AND ACTIVE BARRIER PROPERTIES
description	Nanocomposites based on Low Density Polyethylene (LDPE) containing organically modified montmorillonite (OMMT) and polyethylene grafted with maleic anhydride (PE-g-MA) were obtained by the mixing molten state method at 130 °C (LDPE / PE-g-MA / Cv / OMMT). Furthermore, in order to obtain a material with active barrier properties, carvacrol (Cv) was incorporated into the nanocomposite (LDPE / PE-g-MA / Cv / OMMT). Carvacrol is an essential oil component with a high antimicrobial, antifungal, and antiparasitic capability. The nanocomposites were characterized by XRD, DSC, TGA, oxygen permeability, and tensile test. The nanocomposites without Cv (LDPE / PE-g-MA / OMMT) showed an intercalated morphology (confirmed by the X ray diffraction analysis), an improved percentage of crystallinity and a reduced permeability to oxygen (25%) as compared with LDPE . The rigidity of the resulting material correlated with the clay content as expected. The nanocomposite containing Cv (LDPE / PE-g-MA / Cv / OMMT) also show intercalated morphology with a greater displacement between the clay layers as compared with the nanocomposite without Cv produced by intercalation of the antimicrobial agent between the layers. The antimicrobial activity of (LDPE / PE-g-MA / Cv / OMMT) was observed by the reduction or inhibition on bacterial (Escherichia coli and Staphylococcus aureus) growth.
author	MONICA A,PÉREZ BERNABÉ L,RIVAS KARLA A,GARRIDO-MIRANDA VÍCTOR H.,CAMPOS-REQUENA MIGUEL,MARTÍNEZ JOHANNA,CASTAÑO ÁLVARO,MALDONADO
author_facet	MONICA A,PÉREZ BERNABÉ L,RIVAS KARLA A,GARRIDO-MIRANDA VÍCTOR H.,CAMPOS-REQUENA MIGUEL,MARTÍNEZ JOHANNA,CASTAÑO ÁLVARO,MALDONADO
author_sort	MONICA A,PÉREZ
title	LOW DENSITY POLYETHYLENE (LDPE) NANOCOMPOSITES WITH PASSIVE AND ACTIVE BARRIER PROPERTIES
title_short	LOW DENSITY POLYETHYLENE (LDPE) NANOCOMPOSITES WITH PASSIVE AND ACTIVE BARRIER PROPERTIES
title_full	LOW DENSITY POLYETHYLENE (LDPE) NANOCOMPOSITES WITH PASSIVE AND ACTIVE BARRIER PROPERTIES
title_fullStr	LOW DENSITY POLYETHYLENE (LDPE) NANOCOMPOSITES WITH PASSIVE AND ACTIVE BARRIER PROPERTIES
title_full_unstemmed	LOW DENSITY POLYETHYLENE (LDPE) NANOCOMPOSITES WITH PASSIVE AND ACTIVE BARRIER PROPERTIES
title_sort	low density polyethylene (ldpe) nanocomposites with passive and active barrier properties
publisher	Sociedad Chilena de Química
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200009
work_keys_str_mv	AT monicaaperez lowdensitypolyethyleneldpenanocompositeswithpassiveandactivebarrierproperties AT bernabelrivas lowdensitypolyethyleneldpenanocompositeswithpassiveandactivebarrierproperties AT karlaagarridomiranda lowdensitypolyethyleneldpenanocompositeswithpassiveandactivebarrierproperties AT victorhcamposrequena lowdensitypolyethyleneldpenanocompositeswithpassiveandactivebarrierproperties AT miguelmartinez lowdensitypolyethyleneldpenanocompositeswithpassiveandactivebarrierproperties AT johannacastano lowdensitypolyethyleneldpenanocompositeswithpassiveandactivebarrierproperties AT alvaromaldonado lowdensitypolyethyleneldpenanocompositeswithpassiveandactivebarrierproperties
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LOW DENSITY POLYETHYLENE (LDPE) NANOCOMPOSITES WITH PASSIVE AND ACTIVE BARRIER PROPERTIES

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