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Cellulose Fibre-Reinforced Biofoam for Structural Applications

Traditionally, polymers and macromolecular components used in the foam industry are mostly derived from petroleum. The current transition to a bio-economy creates demand for the use of more renewable feedstocks. Soybean oil is a vegetable oil, composed mainly of triglycerides, that is suitable mater...

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Autores principales: Obradovic, Jasmina, Voutilainen, Mikko, Virtanen, Pasi, Lassila, Lippo, Fardim, Pedro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5553527/
https://www.ncbi.nlm.nih.gov/pubmed/28772981
http://dx.doi.org/10.3390/ma10060619
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author Obradovic, Jasmina
Voutilainen, Mikko
Virtanen, Pasi
Lassila, Lippo
Fardim, Pedro
author_facet Obradovic, Jasmina
Voutilainen, Mikko
Virtanen, Pasi
Lassila, Lippo
Fardim, Pedro
author_sort Obradovic, Jasmina
collection PubMed
description Traditionally, polymers and macromolecular components used in the foam industry are mostly derived from petroleum. The current transition to a bio-economy creates demand for the use of more renewable feedstocks. Soybean oil is a vegetable oil, composed mainly of triglycerides, that is suitable material for foam production. In this study, acrylated epoxidized soybean oil and variable amounts of cellulose fibres were used in the production of bio-based foam. The developed macroporous bio-based architectures were characterised by several techniques, including porosity measurements, nanoindentation testing, scanning electron microscopy, and thermogravimetric analysis. It was found that the introduction of cellulose fibres during the foaming process was necessary to create the three-dimensional polymer foams. Using cellulose fibres has potential as a foam stabiliser because it obstructs the drainage of liquid from the film region in these gas-oil interfaces while simultaneously acting as a reinforcing agent in the polymer foam. The resulting foams possessed a porosity of approximately 56%, and the incorporation of cellulose fibres did not affect thermal behaviour. Scanning electron micrographs showed randomly oriented pores with irregular shapes and non-uniform pore size throughout the samples.
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spelling pubmed-55535272017-08-14 Cellulose Fibre-Reinforced Biofoam for Structural Applications Obradovic, Jasmina Voutilainen, Mikko Virtanen, Pasi Lassila, Lippo Fardim, Pedro Materials (Basel) Article Traditionally, polymers and macromolecular components used in the foam industry are mostly derived from petroleum. The current transition to a bio-economy creates demand for the use of more renewable feedstocks. Soybean oil is a vegetable oil, composed mainly of triglycerides, that is suitable material for foam production. In this study, acrylated epoxidized soybean oil and variable amounts of cellulose fibres were used in the production of bio-based foam. The developed macroporous bio-based architectures were characterised by several techniques, including porosity measurements, nanoindentation testing, scanning electron microscopy, and thermogravimetric analysis. It was found that the introduction of cellulose fibres during the foaming process was necessary to create the three-dimensional polymer foams. Using cellulose fibres has potential as a foam stabiliser because it obstructs the drainage of liquid from the film region in these gas-oil interfaces while simultaneously acting as a reinforcing agent in the polymer foam. The resulting foams possessed a porosity of approximately 56%, and the incorporation of cellulose fibres did not affect thermal behaviour. Scanning electron micrographs showed randomly oriented pores with irregular shapes and non-uniform pore size throughout the samples. MDPI 2017-06-06 /pmc/articles/PMC5553527/ /pubmed/28772981 http://dx.doi.org/10.3390/ma10060619 Text en © 2017 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
Obradovic, Jasmina
Voutilainen, Mikko
Virtanen, Pasi
Lassila, Lippo
Fardim, Pedro
Cellulose Fibre-Reinforced Biofoam for Structural Applications
title Cellulose Fibre-Reinforced Biofoam for Structural Applications
title_full Cellulose Fibre-Reinforced Biofoam for Structural Applications
title_fullStr Cellulose Fibre-Reinforced Biofoam for Structural Applications
title_full_unstemmed Cellulose Fibre-Reinforced Biofoam for Structural Applications
title_short Cellulose Fibre-Reinforced Biofoam for Structural Applications
title_sort cellulose fibre-reinforced biofoam for structural applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5553527/
https://www.ncbi.nlm.nih.gov/pubmed/28772981
http://dx.doi.org/10.3390/ma10060619
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