Polypropylene-based wood-plastic composites: Effect of using a coupling agent derived from a renewable resource

In this work, post-consumer polypropylene and wood flour from Pinus elliottii were used to produce wood plastic composites. The effect of polypropylene grafted with itaconic acid used as a coupling agent on mechanical properties, thermal stability and morphology of the composites was investigated an...

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Autor principal:	Poletto,Matheus
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2017
Materias:	Flexural strength mechanical properties Pinus elliottii thermal stability wood flour
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2017000300002
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spelling	oai:scielo:S0718-221X20170003000022017-07-12Polypropylene-based wood-plastic composites: Effect of using a coupling agent derived from a renewable resourcePoletto,Matheus Flexural strength mechanical properties Pinus elliottii thermal stability wood flour In this work, post-consumer polypropylene and wood flour from Pinus elliottii were used to produce wood plastic composites. The effect of polypropylene grafted with itaconic acid used as a coupling agent on mechanical properties, thermal stability and morphology of the composites was investigated and compared with the composite developed with polypropylene grafted with maleic anhydride, commonly used as coupling agent in wood plastic composites. Composites with 30 wt% of wood flour and 2 wt% of coupling agent were produced in a co-rotating twin-screw extruder and after were injection molded. The mechanical properties showed that flexural strength improved on 29% and 35% with addition of polypropylene grafted with itaconic acid and polypropylene grafted with maleic anhydride respectively, when compared with the wood plastic composites without coupling agent. On the other hand, the incorporation of polypropylene grafted with itaconic acid does not change the impact strength values significantly. Additionally, the temperature corresponding to 3 wt% of weight loss determined by thermogravimetry for composites with polypropylene grafted with itaconic acid increased by 14°C when compared with wood plastic composites without coupling agent, while addition of polypropylene grafted with maleic anhydride increased approximately 6°C the composite thermal stability. A morphological study revealed the positive effect of the polypropylene grafted with itaconic acid on the interfacial bonding of recycled polypropylene and wood flour.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.19 n.3 20172017-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2017000300002en10.4067/S0718-221X2017005000022
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Flexural strength mechanical properties Pinus elliottii thermal stability wood flour
spellingShingle	Flexural strength mechanical properties Pinus elliottii thermal stability wood flour Poletto,Matheus Polypropylene-based wood-plastic composites: Effect of using a coupling agent derived from a renewable resource
description	In this work, post-consumer polypropylene and wood flour from Pinus elliottii were used to produce wood plastic composites. The effect of polypropylene grafted with itaconic acid used as a coupling agent on mechanical properties, thermal stability and morphology of the composites was investigated and compared with the composite developed with polypropylene grafted with maleic anhydride, commonly used as coupling agent in wood plastic composites. Composites with 30 wt% of wood flour and 2 wt% of coupling agent were produced in a co-rotating twin-screw extruder and after were injection molded. The mechanical properties showed that flexural strength improved on 29% and 35% with addition of polypropylene grafted with itaconic acid and polypropylene grafted with maleic anhydride respectively, when compared with the wood plastic composites without coupling agent. On the other hand, the incorporation of polypropylene grafted with itaconic acid does not change the impact strength values significantly. Additionally, the temperature corresponding to 3 wt% of weight loss determined by thermogravimetry for composites with polypropylene grafted with itaconic acid increased by 14°C when compared with wood plastic composites without coupling agent, while addition of polypropylene grafted with maleic anhydride increased approximately 6°C the composite thermal stability. A morphological study revealed the positive effect of the polypropylene grafted with itaconic acid on the interfacial bonding of recycled polypropylene and wood flour.
author	Poletto,Matheus
author_facet	Poletto,Matheus
author_sort	Poletto,Matheus
title	Polypropylene-based wood-plastic composites: Effect of using a coupling agent derived from a renewable resource
title_short	Polypropylene-based wood-plastic composites: Effect of using a coupling agent derived from a renewable resource
title_full	Polypropylene-based wood-plastic composites: Effect of using a coupling agent derived from a renewable resource
title_fullStr	Polypropylene-based wood-plastic composites: Effect of using a coupling agent derived from a renewable resource
title_full_unstemmed	Polypropylene-based wood-plastic composites: Effect of using a coupling agent derived from a renewable resource
title_sort	polypropylene-based wood-plastic composites: effect of using a coupling agent derived from a renewable resource
publisher	Universidad del Bío-Bío
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2017000300002
work_keys_str_mv	AT polettomatheus polypropylenebasedwoodplasticcompositeseffectofusingacouplingagentderivedfromarenewableresource
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Polypropylene-based wood-plastic composites: Effect of using a coupling agent derived from a renewable resource

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