The Influence of Manufacturing Factors in the Short-Fiber Non-Woven Chestnut Hedgehog Spine-Reinforced Polyester Composite Performance
One of the most important agricultural products in the northeast of Portugal is sweet chestnuts. In this region only, several tons of this product are produced every year. Sweet chestnuts are enclosed in a hedgehog covered with a large number of short and fine spines and containing more than one nut...
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Format: | Article |
Language: | English |
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Taylor & Francis Group
2021-09-01
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Series: | Journal of Natural Fibers |
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Online Access: | http://dx.doi.org/10.1080/15440478.2019.1691109 |
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author | J. E. Ribeiro J. Rocha L. Queijo |
author_facet | J. E. Ribeiro J. Rocha L. Queijo |
author_sort | J. E. Ribeiro |
collection | DOAJ |
description | One of the most important agricultural products in the northeast of Portugal is sweet chestnuts. In this region only, several tons of this product are produced every year. Sweet chestnuts are enclosed in a hedgehog covered with a large number of short and fine spines and containing more than one nut. This hedgehog, with long spines, does not have any commercial value, and they are considered an agricultural waste that is left in the fields to be incorporated into the soil. In this work, the authors propose to study the influence of some factors in the short-fiber non-woven chestnut hedgehog spine-reinforced polyester composite performance. For this purpose, the tensile properties of chestnut spines were determined by implementing a design of experiments (DOE) approach developed by Taguchi. Thus, the factors that will be controlled are the fiber dispersion which is defined by fiber/matrix mass ratio or weight fraction, the interfacial strength that could be improved using an alkali–silane treatment and, finally, the moisture level in the fibers. For each factor, three levels were used, an L9 orthogonal array of experiments was implemented to evaluate tensile and flexural properties. These properties were determined based on results of 54 tests, and the maximum mean values for tensile and flexural strength were 23.5 MPa and 33.6 MPa, respectively. The most influential factor for maximizing the tensile strength was the volume fraction of fiber with a contribution of 30%, and most influential factor for maximizing the flexural strength was the moisture level with a contribution of 65%. The determined mean value of tensile strength of the spines was 148 MPa. |
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issn | 1544-0478 1544-046X |
language | English |
last_indexed | 2024-03-11T23:26:32Z |
publishDate | 2021-09-01 |
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series | Journal of Natural Fibers |
spelling | doaj.art-50d76be8dac6489ab77d1e0223119ac32023-09-20T12:50:17ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2021-09-011891307131910.1080/15440478.2019.16911091691109The Influence of Manufacturing Factors in the Short-Fiber Non-Woven Chestnut Hedgehog Spine-Reinforced Polyester Composite PerformanceJ. E. Ribeiro0J. Rocha1L. Queijo2ESTIG, C. Sta. ApolóniaESTIG, C. Sta. ApolóniaESTIG, C. Sta. ApolóniaOne of the most important agricultural products in the northeast of Portugal is sweet chestnuts. In this region only, several tons of this product are produced every year. Sweet chestnuts are enclosed in a hedgehog covered with a large number of short and fine spines and containing more than one nut. This hedgehog, with long spines, does not have any commercial value, and they are considered an agricultural waste that is left in the fields to be incorporated into the soil. In this work, the authors propose to study the influence of some factors in the short-fiber non-woven chestnut hedgehog spine-reinforced polyester composite performance. For this purpose, the tensile properties of chestnut spines were determined by implementing a design of experiments (DOE) approach developed by Taguchi. Thus, the factors that will be controlled are the fiber dispersion which is defined by fiber/matrix mass ratio or weight fraction, the interfacial strength that could be improved using an alkali–silane treatment and, finally, the moisture level in the fibers. For each factor, three levels were used, an L9 orthogonal array of experiments was implemented to evaluate tensile and flexural properties. These properties were determined based on results of 54 tests, and the maximum mean values for tensile and flexural strength were 23.5 MPa and 33.6 MPa, respectively. The most influential factor for maximizing the tensile strength was the volume fraction of fiber with a contribution of 30%, and most influential factor for maximizing the flexural strength was the moisture level with a contribution of 65%. The determined mean value of tensile strength of the spines was 148 MPa.http://dx.doi.org/10.1080/15440478.2019.1691109chestnut hedgehog spinenatural fiberscompositepolyestermechanical propertiesmanufacturing factors |
spellingShingle | J. E. Ribeiro J. Rocha L. Queijo The Influence of Manufacturing Factors in the Short-Fiber Non-Woven Chestnut Hedgehog Spine-Reinforced Polyester Composite Performance Journal of Natural Fibers chestnut hedgehog spine natural fibers composite polyester mechanical properties manufacturing factors |
title | The Influence of Manufacturing Factors in the Short-Fiber Non-Woven Chestnut Hedgehog Spine-Reinforced Polyester Composite Performance |
title_full | The Influence of Manufacturing Factors in the Short-Fiber Non-Woven Chestnut Hedgehog Spine-Reinforced Polyester Composite Performance |
title_fullStr | The Influence of Manufacturing Factors in the Short-Fiber Non-Woven Chestnut Hedgehog Spine-Reinforced Polyester Composite Performance |
title_full_unstemmed | The Influence of Manufacturing Factors in the Short-Fiber Non-Woven Chestnut Hedgehog Spine-Reinforced Polyester Composite Performance |
title_short | The Influence of Manufacturing Factors in the Short-Fiber Non-Woven Chestnut Hedgehog Spine-Reinforced Polyester Composite Performance |
title_sort | influence of manufacturing factors in the short fiber non woven chestnut hedgehog spine reinforced polyester composite performance |
topic | chestnut hedgehog spine natural fibers composite polyester mechanical properties manufacturing factors |
url | http://dx.doi.org/10.1080/15440478.2019.1691109 |
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