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MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties

Functional magnesium oxide-lignin hybrid materials were obtained via mechanical grinding. Their particle shape and size as well as physicochemical properties were characterized. MgO-lignin materials with biocomponent content (between 20% and 80% amount of total weight of filler) were used as a parti...

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Autores principales: Bula, Karol, Kubicki, Grzegorz, Jesionowski, Teofil, Klapiszewski, Łukasz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7040937/
https://www.ncbi.nlm.nih.gov/pubmed/32050717
http://dx.doi.org/10.3390/ma13030809
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author Bula, Karol
Kubicki, Grzegorz
Jesionowski, Teofil
Klapiszewski, Łukasz
author_facet Bula, Karol
Kubicki, Grzegorz
Jesionowski, Teofil
Klapiszewski, Łukasz
author_sort Bula, Karol
collection PubMed
description Functional magnesium oxide-lignin hybrid materials were obtained via mechanical grinding. Their particle shape and size as well as physicochemical properties were characterized. MgO-lignin materials with biocomponent content (between 20% and 80% amount of total weight of filler) were used as a partially bio-structured modifier of low density polyethylene. The composites with 5% by weight of dual fillers and polyethylene grafted with maleic anhydride were compounded in a twin screw extruder working in co-rotating mode. The prepared blends were cast extruded using a single screw extruder and laboratory cast line. The properties of the obtained films were verified in case of their weldability. The seal strength as well as shear test and tear strength of the welded sheets were examined. The results showed that the shortest equivalent time required to perform correct weld occurred in the system, where the highest amount of lignin was used in hybrid filler MgO-L (1:5 w/w). From mechanical tests of welds, a sharp increase in ultimate seal force was noticed for almost all compositions with lignin, especially where MgO was coupled with a high lignin content. For those composition seal open force raised up to 37.0 N, from the value of 23.6 N, achieved for neat low density polyethylene (LDPE). Tear strength of weld sheets confirmed once more that LDPE composition with MgO-L (1:5 w/w) achieved the highest ultimate force with its value of 71.5 N, and it was ~20.0 N higher than in the case of neat LDPE.
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spelling pubmed-70409372020-03-09 MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties Bula, Karol Kubicki, Grzegorz Jesionowski, Teofil Klapiszewski, Łukasz Materials (Basel) Article Functional magnesium oxide-lignin hybrid materials were obtained via mechanical grinding. Their particle shape and size as well as physicochemical properties were characterized. MgO-lignin materials with biocomponent content (between 20% and 80% amount of total weight of filler) were used as a partially bio-structured modifier of low density polyethylene. The composites with 5% by weight of dual fillers and polyethylene grafted with maleic anhydride were compounded in a twin screw extruder working in co-rotating mode. The prepared blends were cast extruded using a single screw extruder and laboratory cast line. The properties of the obtained films were verified in case of their weldability. The seal strength as well as shear test and tear strength of the welded sheets were examined. The results showed that the shortest equivalent time required to perform correct weld occurred in the system, where the highest amount of lignin was used in hybrid filler MgO-L (1:5 w/w). From mechanical tests of welds, a sharp increase in ultimate seal force was noticed for almost all compositions with lignin, especially where MgO was coupled with a high lignin content. For those composition seal open force raised up to 37.0 N, from the value of 23.6 N, achieved for neat low density polyethylene (LDPE). Tear strength of weld sheets confirmed once more that LDPE composition with MgO-L (1:5 w/w) achieved the highest ultimate force with its value of 71.5 N, and it was ~20.0 N higher than in the case of neat LDPE. MDPI 2020-02-10 /pmc/articles/PMC7040937/ /pubmed/32050717 http://dx.doi.org/10.3390/ma13030809 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bula, Karol
Kubicki, Grzegorz
Jesionowski, Teofil
Klapiszewski, Łukasz
MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties
title MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties
title_full MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties
title_fullStr MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties
title_full_unstemmed MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties
title_short MgO-Lignin Dual Phase Filler as an Effective Modifier of Polyethylene Film Properties
title_sort mgo-lignin dual phase filler as an effective modifier of polyethylene film properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7040937/
https://www.ncbi.nlm.nih.gov/pubmed/32050717
http://dx.doi.org/10.3390/ma13030809
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