Use of kraft lignin as compatibilizer in wood flour-polypropylene Composites

Effect of Kraft lignin as a compatibilizer on the short-term water absorption (2 and 24 hours) and mechanical properties of wood flour-polypropylene composites was studied. The black liquor of Chooka pulp and paper mill was acidified and Kraft lignin was extracted by precipitation. The extracted li...

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Autores principales:	Rabi Behroz, Hamed Unsi kord khelili, Saeid Kazemi najafi
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2011
Materias:	wood- plastic composites compatibilizer Kraft lignin MECHANICAL PROPERTIES water absorption physical mixing method Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/09e98e0f7de64950b5d04d2e18e5363a
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spelling	oai:doaj.org-article:09e98e0f7de64950b5d04d2e18e5363a2021-12-02T07:43:20ZUse of kraft lignin as compatibilizer in wood flour-polypropylene Composites1735-09132383-112X10.22092/ijwpr.2011.117201https://doaj.org/article/09e98e0f7de64950b5d04d2e18e5363a2011-09-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_117201_c091dcae687dd917710f5efa94d8f5fb.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XEffect of Kraft lignin as a compatibilizer on the short-term water absorption (2 and 24 hours) and mechanical properties of wood flour-polypropylene composites was studied. The black liquor of Chooka pulp and paper mill was acidified and Kraft lignin was extracted by precipitation. The extracted lignin at three levels of 2, 5 and 10 percent was mixed with wood flour by physical mixing method. All materials used were oven-dried. Wood flour, lignin and PP with or without MAPP were used to produce composites by flat hot press method. The results of this study indicated that generally lignin improved physical (short term water absorption) and mechanical properties (flexural modulus, flexural strength and impact strength). The bending test result showed that without MAPP, the composites with 2 and 10 percent lignin exhibited higher flexural modulus and strength, respectively. But at the presence of compatibilizer, the composites with 5 percent lignin exhibited the highest flexural modulus and strength. The composite with 2 percent of lignin exhibited higher flexural modulus and short-term water absorption rather than the composites with 2% MAPP. This result indicated positive effect of lignin in the composites. Also the composites with 10 percent lignin exhibited the highest impact strength and short-term water absorption. But there were no significant difference between the impact strength of composites with 5 and 10 percent lignin.Rabi BehrozHamed Unsi kord kheliliSaeid Kazemi najafiRegional Information Center for Science and Technology (RICeST)articlewood- plastic compositescompatibilizerKraft ligninMECHANICAL PROPERTIESwater absorptionphysical mixing methodForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 26, Iss 3, Pp 454-465 (2011)
institution	DOAJ
collection	DOAJ
language	FA
topic	wood- plastic composites compatibilizer Kraft lignin MECHANICAL PROPERTIES water absorption physical mixing method Forestry SD1-669.5
spellingShingle	wood- plastic composites compatibilizer Kraft lignin MECHANICAL PROPERTIES water absorption physical mixing method Forestry SD1-669.5 Rabi Behroz Hamed Unsi kord khelili Saeid Kazemi najafi Use of kraft lignin as compatibilizer in wood flour-polypropylene Composites
description	Effect of Kraft lignin as a compatibilizer on the short-term water absorption (2 and 24 hours) and mechanical properties of wood flour-polypropylene composites was studied. The black liquor of Chooka pulp and paper mill was acidified and Kraft lignin was extracted by precipitation. The extracted lignin at three levels of 2, 5 and 10 percent was mixed with wood flour by physical mixing method. All materials used were oven-dried. Wood flour, lignin and PP with or without MAPP were used to produce composites by flat hot press method. The results of this study indicated that generally lignin improved physical (short term water absorption) and mechanical properties (flexural modulus, flexural strength and impact strength). The bending test result showed that without MAPP, the composites with 2 and 10 percent lignin exhibited higher flexural modulus and strength, respectively. But at the presence of compatibilizer, the composites with 5 percent lignin exhibited the highest flexural modulus and strength. The composite with 2 percent of lignin exhibited higher flexural modulus and short-term water absorption rather than the composites with 2% MAPP. This result indicated positive effect of lignin in the composites. Also the composites with 10 percent lignin exhibited the highest impact strength and short-term water absorption. But there were no significant difference between the impact strength of composites with 5 and 10 percent lignin.
format	article
author	Rabi Behroz Hamed Unsi kord khelili Saeid Kazemi najafi
author_facet	Rabi Behroz Hamed Unsi kord khelili Saeid Kazemi najafi
author_sort	Rabi Behroz
title	Use of kraft lignin as compatibilizer in wood flour-polypropylene Composites
title_short	Use of kraft lignin as compatibilizer in wood flour-polypropylene Composites
title_full	Use of kraft lignin as compatibilizer in wood flour-polypropylene Composites
title_fullStr	Use of kraft lignin as compatibilizer in wood flour-polypropylene Composites
title_full_unstemmed	Use of kraft lignin as compatibilizer in wood flour-polypropylene Composites
title_sort	use of kraft lignin as compatibilizer in wood flour-polypropylene composites
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2011
url	https://doaj.org/article/09e98e0f7de64950b5d04d2e18e5363a
work_keys_str_mv	AT rabibehroz useofkraftligninascompatibilizerinwoodflourpolypropylenecomposites AT hamedunsikordkhelili useofkraftligninascompatibilizerinwoodflourpolypropylenecomposites AT saeidkazeminajafi useofkraftligninascompatibilizerinwoodflourpolypropylenecomposites
_version_	1718399200328155136

Use of kraft lignin as compatibilizer in wood flour-polypropylene Composites

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