Study of Improving Fracture Toughness of Un-Saturated Polyester with Addition of Mixing Percentage of CPO Oils

Unsaturated polyester is a polymer that is widely used as a basic matrix to form strong composites for engineering applications such as for cars, ships and aeroplanes. The advantages of using this material are owing to have a fairly high tensile strength when reinforced with appropriate reinforcing...

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Main Authors: Nusyirwan Adnand, Ilham S
Format: Article
Language:English
Published: Department of Mechanical Engineering, Faculty of Engineering, Universitas Andalas 2022-10-01
Series:Metal: Jurnal Sistem Mekanik dan Termal
Online Access:https://metal.ft.unand.ac.id/index.php/metal/article/view/205
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author Nusyirwan Adnand
Ilham S
author_facet Nusyirwan Adnand
Ilham S
author_sort Nusyirwan Adnand
collection DOAJ
description Unsaturated polyester is a polymer that is widely used as a basic matrix to form strong composites for engineering applications such as for cars, ships and aeroplanes. The advantages of using this material are owing to have a fairly high tensile strength when reinforced with appropriate reinforcing fibers, light and easy to shape. However, due to its brittle nature, this material cannot withstand shock loads. Therefore, it is necessary to overcome that weakness. Crude Palm Oil (CPO) can give benefits as a strengthening agent. However, its proper mixture to polyester need to be figured out so that it would help in improving crack resistance properties of this polyester. This can be done by determining of fracture resistance value of the mixture polymer. A crack resistance testing was carried out and crthe itical stress intensity factor was calculated based on ASTM D 5005. The composition of the CPO mixture was varied from 100%: 0%, 10%: 20%, 30%: 40%. From the test results, it can be identified that the greatest critical stress intensity factor is  = 15.787  MPa.m<sup>1/2</sup>. This is found out in composition of 30% CPO. Meanwhile the critical intensity factor of pure Unsaturated Polyester (UP) is only 2,023 MPa.m<sup>1/2</sup>. There is approximately 700% improvement that can be gained in mixing with CPO.
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language English
publishDate 2022-10-01
publisher Department of Mechanical Engineering, Faculty of Engineering, Universitas Andalas
record_format Article
series Metal: Jurnal Sistem Mekanik dan Termal
spelling doaj-art-ede52eb0d08a46ffaaa7ae6e45823b042025-02-01T10:20:39ZengDepartment of Mechanical Engineering, Faculty of Engineering, Universitas AndalasMetal: Jurnal Sistem Mekanik dan Termal2598-11372597-44832022-10-016213213710.25077/metal.6.2.132-137.2022123Study of Improving Fracture Toughness of Un-Saturated Polyester with Addition of Mixing Percentage of CPO OilsNusyirwan Adnand0Ilham S1Andalas UniversityAndalas UniversityUnsaturated polyester is a polymer that is widely used as a basic matrix to form strong composites for engineering applications such as for cars, ships and aeroplanes. The advantages of using this material are owing to have a fairly high tensile strength when reinforced with appropriate reinforcing fibers, light and easy to shape. However, due to its brittle nature, this material cannot withstand shock loads. Therefore, it is necessary to overcome that weakness. Crude Palm Oil (CPO) can give benefits as a strengthening agent. However, its proper mixture to polyester need to be figured out so that it would help in improving crack resistance properties of this polyester. This can be done by determining of fracture resistance value of the mixture polymer. A crack resistance testing was carried out and crthe itical stress intensity factor was calculated based on ASTM D 5005. The composition of the CPO mixture was varied from 100%: 0%, 10%: 20%, 30%: 40%. From the test results, it can be identified that the greatest critical stress intensity factor is  = 15.787  MPa.m<sup>1/2</sup>. This is found out in composition of 30% CPO. Meanwhile the critical intensity factor of pure Unsaturated Polyester (UP) is only 2,023 MPa.m<sup>1/2</sup>. There is approximately 700% improvement that can be gained in mixing with CPO.https://metal.ft.unand.ac.id/index.php/metal/article/view/205
spellingShingle Nusyirwan Adnand
Ilham S
Study of Improving Fracture Toughness of Un-Saturated Polyester with Addition of Mixing Percentage of CPO Oils
Metal: Jurnal Sistem Mekanik dan Termal
title Study of Improving Fracture Toughness of Un-Saturated Polyester with Addition of Mixing Percentage of CPO Oils
title_full Study of Improving Fracture Toughness of Un-Saturated Polyester with Addition of Mixing Percentage of CPO Oils
title_fullStr Study of Improving Fracture Toughness of Un-Saturated Polyester with Addition of Mixing Percentage of CPO Oils
title_full_unstemmed Study of Improving Fracture Toughness of Un-Saturated Polyester with Addition of Mixing Percentage of CPO Oils
title_short Study of Improving Fracture Toughness of Un-Saturated Polyester with Addition of Mixing Percentage of CPO Oils
title_sort study of improving fracture toughness of un saturated polyester with addition of mixing percentage of cpo oils
url https://metal.ft.unand.ac.id/index.php/metal/article/view/205
work_keys_str_mv AT nusyirwanadnand studyofimprovingfracturetoughnessofunsaturatedpolyesterwithadditionofmixingpercentageofcpooils
AT ilhams studyofimprovingfracturetoughnessofunsaturatedpolyesterwithadditionofmixingpercentageofcpooils