EFFECT OF VIRGIN HETEROPHASIC PP COPOLYMER CONTENT ON MOISTURE ABSORPTION, THERMAL AND MECHANICAL PROPERTIES OF RECYCLED POLYETHYLENE WOOD FLOUR COMPOSITES

The effect of virgin heterophasic PP copolymer (vPP) content on moisture absorption, as well as on thermal and mechanical properties of recycled polyethylene/ wood flour composites was investigated. The polymer matrix of recycled post-consumed plastic waste (rPE) was composed of a matrix of LDPE and...

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Autores principales:	ARANGO,CAROLINA, RODRÍGUEZ-LLAMAZARES,SADDYS, CASTAÑO,JOHANNA, ZUNIGA,ALEJANDRO
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2014
Materias:	recycled LDPE-PP blend wood plastic composite mechanical properties water absorption properties
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000100027
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spelling	oai:scielo:S0717-970720140001000272015-11-12EFFECT OF VIRGIN HETEROPHASIC PP COPOLYMER CONTENT ON MOISTURE ABSORPTION, THERMAL AND MECHANICAL PROPERTIES OF RECYCLED POLYETHYLENE WOOD FLOUR COMPOSITESARANGO,CAROLINARODRÍGUEZ-LLAMAZARES,SADDYSCASTAÑO,JOHANNAZUNIGA,ALEJANDRO recycled LDPE-PP blend wood plastic composite mechanical properties water absorption properties The effect of virgin heterophasic PP copolymer (vPP) content on moisture absorption, as well as on thermal and mechanical properties of recycled polyethylene/ wood flour composites was investigated. The polymer matrix of recycled post-consumed plastic waste (rPE) was composed of a matrix of LDPE and a part of PP. Wood flour of Pinus radiata was used as filler at a constant loading of 45 wt.%. rPE/vPP blends and their composites were manufactured by melt blending, and then by injection molding. The morphology of the blends and composites was analyzed by means of scanning electron microscopy. The addition of vPP improved tensile and flexural moduli and flexural strength of wood plastic composites (WPC). The highest increase of these properties was observed for a WPC sample with a rPE/vPP ratio of 19. WPC made with higher virgin PP content (rPE/vPP ratio = 9 and 5.7) showed lower increase of mechanical properties compared to polymer matrix and WrPE samples. The moisture uptake of WPC made of rPE/vPP blend was higher than those of rPE, and their mechanical properties were more adversely affected by immersion in water. TGA results indicate that rPE are thermally more stable than rPE/vPP blends. The incorporation of heterophasic PP copolymer into the recycled polymer matrix of WPC delays the starting of wood flour degradation.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.59 n.1 20142014-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000100027en10.4067/S0717-97072014000100027
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	recycled LDPE-PP blend wood plastic composite mechanical properties water absorption properties
spellingShingle	recycled LDPE-PP blend wood plastic composite mechanical properties water absorption properties ARANGO,CAROLINA RODRÍGUEZ-LLAMAZARES,SADDYS CASTAÑO,JOHANNA ZUNIGA,ALEJANDRO EFFECT OF VIRGIN HETEROPHASIC PP COPOLYMER CONTENT ON MOISTURE ABSORPTION, THERMAL AND MECHANICAL PROPERTIES OF RECYCLED POLYETHYLENE WOOD FLOUR COMPOSITES
description	The effect of virgin heterophasic PP copolymer (vPP) content on moisture absorption, as well as on thermal and mechanical properties of recycled polyethylene/ wood flour composites was investigated. The polymer matrix of recycled post-consumed plastic waste (rPE) was composed of a matrix of LDPE and a part of PP. Wood flour of Pinus radiata was used as filler at a constant loading of 45 wt.%. rPE/vPP blends and their composites were manufactured by melt blending, and then by injection molding. The morphology of the blends and composites was analyzed by means of scanning electron microscopy. The addition of vPP improved tensile and flexural moduli and flexural strength of wood plastic composites (WPC). The highest increase of these properties was observed for a WPC sample with a rPE/vPP ratio of 19. WPC made with higher virgin PP content (rPE/vPP ratio = 9 and 5.7) showed lower increase of mechanical properties compared to polymer matrix and WrPE samples. The moisture uptake of WPC made of rPE/vPP blend was higher than those of rPE, and their mechanical properties were more adversely affected by immersion in water. TGA results indicate that rPE are thermally more stable than rPE/vPP blends. The incorporation of heterophasic PP copolymer into the recycled polymer matrix of WPC delays the starting of wood flour degradation.
author	ARANGO,CAROLINA RODRÍGUEZ-LLAMAZARES,SADDYS CASTAÑO,JOHANNA ZUNIGA,ALEJANDRO
author_facet	ARANGO,CAROLINA RODRÍGUEZ-LLAMAZARES,SADDYS CASTAÑO,JOHANNA ZUNIGA,ALEJANDRO
author_sort	ARANGO,CAROLINA
title	EFFECT OF VIRGIN HETEROPHASIC PP COPOLYMER CONTENT ON MOISTURE ABSORPTION, THERMAL AND MECHANICAL PROPERTIES OF RECYCLED POLYETHYLENE WOOD FLOUR COMPOSITES
title_short	EFFECT OF VIRGIN HETEROPHASIC PP COPOLYMER CONTENT ON MOISTURE ABSORPTION, THERMAL AND MECHANICAL PROPERTIES OF RECYCLED POLYETHYLENE WOOD FLOUR COMPOSITES
title_full	EFFECT OF VIRGIN HETEROPHASIC PP COPOLYMER CONTENT ON MOISTURE ABSORPTION, THERMAL AND MECHANICAL PROPERTIES OF RECYCLED POLYETHYLENE WOOD FLOUR COMPOSITES
title_fullStr	EFFECT OF VIRGIN HETEROPHASIC PP COPOLYMER CONTENT ON MOISTURE ABSORPTION, THERMAL AND MECHANICAL PROPERTIES OF RECYCLED POLYETHYLENE WOOD FLOUR COMPOSITES
title_full_unstemmed	EFFECT OF VIRGIN HETEROPHASIC PP COPOLYMER CONTENT ON MOISTURE ABSORPTION, THERMAL AND MECHANICAL PROPERTIES OF RECYCLED POLYETHYLENE WOOD FLOUR COMPOSITES
title_sort	effect of virgin heterophasic pp copolymer content on moisture absorption, thermal and mechanical properties of recycled polyethylene wood flour composites
publisher	Sociedad Chilena de Química
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000100027
work_keys_str_mv	AT arangocarolina effectofvirginheterophasicppcopolymercontentonmoistureabsorptionthermalandmechanicalpropertiesofrecycledpolyethylenewoodflourcomposites AT rodriguezllamazaressaddys effectofvirginheterophasicppcopolymercontentonmoistureabsorptionthermalandmechanicalpropertiesofrecycledpolyethylenewoodflourcomposites AT castanojohanna effectofvirginheterophasicppcopolymercontentonmoistureabsorptionthermalandmechanicalpropertiesofrecycledpolyethylenewoodflourcomposites AT zunigaalejandro effectofvirginheterophasicppcopolymercontentonmoistureabsorptionthermalandmechanicalpropertiesofrecycledpolyethylenewoodflourcomposites
_version_	1718445514277519360

EFFECT OF VIRGIN HETEROPHASIC PP COPOLYMER CONTENT ON MOISTURE ABSORPTION, THERMAL AND MECHANICAL PROPERTIES OF RECYCLED POLYETHYLENE WOOD FLOUR COMPOSITES

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