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Wood Sawdust/Natural Rubber Ecocomposites Cross-Linked by Electron Beam Irradiation
The obtaining and characterization of some polymeric eco-composites based on wood sawdust and natural rubber is presented. The natural rubber was cross-linked using the electron beam irradiation. The irradiation doses were of 75, 150, 300 and 600 kGy and the concentrations of wood sawdust were of 10...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5456881/ https://www.ncbi.nlm.nih.gov/pubmed/28773626 http://dx.doi.org/10.3390/ma9070503 |
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author | Manaila, Elena Stelescu, Maria Daniela Craciun, Gabriela Ighigeanu, Daniel |
author_facet | Manaila, Elena Stelescu, Maria Daniela Craciun, Gabriela Ighigeanu, Daniel |
author_sort | Manaila, Elena |
collection | PubMed |
description | The obtaining and characterization of some polymeric eco-composites based on wood sawdust and natural rubber is presented. The natural rubber was cross-linked using the electron beam irradiation. The irradiation doses were of 75, 150, 300 and 600 kGy and the concentrations of wood sawdust were of 10 and 20 phr, respectively. As a result of wood sawdust adding, the physical and mechanical properties such as hardness, modulus at 100% elongation and tensile strength, showed significant improvements. The presence of wood sawdust fibers has a reinforcing effect on natural rubber, similar or better than of mineral fillers. An increase in the irradiation dose leads to the increasing of cross-link density, which is reflected in the improvement of hardness, modulus at 100% elongation and tensile strength of blends. The cross-linking rates, appreciated using the Flory-Rehner equation, have increased with the amount of wood sawdust in blends and with the irradiation dose. Even if the gel fraction values have varied irregularly with the amount of wood sawdust and irradiation dose it was over 90% for all blends, except for the samples without wood sawdust irradiated with 75 kGy. The water uptake increased with increasing of fiber content and decreased with the irradiation dose. |
format | Online Article Text |
id | pubmed-5456881 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-54568812017-07-28 Wood Sawdust/Natural Rubber Ecocomposites Cross-Linked by Electron Beam Irradiation Manaila, Elena Stelescu, Maria Daniela Craciun, Gabriela Ighigeanu, Daniel Materials (Basel) Article The obtaining and characterization of some polymeric eco-composites based on wood sawdust and natural rubber is presented. The natural rubber was cross-linked using the electron beam irradiation. The irradiation doses were of 75, 150, 300 and 600 kGy and the concentrations of wood sawdust were of 10 and 20 phr, respectively. As a result of wood sawdust adding, the physical and mechanical properties such as hardness, modulus at 100% elongation and tensile strength, showed significant improvements. The presence of wood sawdust fibers has a reinforcing effect on natural rubber, similar or better than of mineral fillers. An increase in the irradiation dose leads to the increasing of cross-link density, which is reflected in the improvement of hardness, modulus at 100% elongation and tensile strength of blends. The cross-linking rates, appreciated using the Flory-Rehner equation, have increased with the amount of wood sawdust in blends and with the irradiation dose. Even if the gel fraction values have varied irregularly with the amount of wood sawdust and irradiation dose it was over 90% for all blends, except for the samples without wood sawdust irradiated with 75 kGy. The water uptake increased with increasing of fiber content and decreased with the irradiation dose. MDPI 2016-06-23 /pmc/articles/PMC5456881/ /pubmed/28773626 http://dx.doi.org/10.3390/ma9070503 Text en © 2016 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 Manaila, Elena Stelescu, Maria Daniela Craciun, Gabriela Ighigeanu, Daniel Wood Sawdust/Natural Rubber Ecocomposites Cross-Linked by Electron Beam Irradiation |
title | Wood Sawdust/Natural Rubber Ecocomposites Cross-Linked by Electron Beam Irradiation |
title_full | Wood Sawdust/Natural Rubber Ecocomposites Cross-Linked by Electron Beam Irradiation |
title_fullStr | Wood Sawdust/Natural Rubber Ecocomposites Cross-Linked by Electron Beam Irradiation |
title_full_unstemmed | Wood Sawdust/Natural Rubber Ecocomposites Cross-Linked by Electron Beam Irradiation |
title_short | Wood Sawdust/Natural Rubber Ecocomposites Cross-Linked by Electron Beam Irradiation |
title_sort | wood sawdust/natural rubber ecocomposites cross-linked by electron beam irradiation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5456881/ https://www.ncbi.nlm.nih.gov/pubmed/28773626 http://dx.doi.org/10.3390/ma9070503 |
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