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Thermal properties of spent coffee ground biocomposite using epoxy resin matrix

Coffee is one of the most popular drinks in the world. The use of coffee produces a large amount of coffee waste (spent coffee grounds). These spent coffee grounds contain cellulose and hemicellulose which have the potential to be used as a biocomposite material. The objective of this work was to s...

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Main Authors: Ismail, Aini, Quratul, Maulida, Cut Rizka, Mursal, Jalil, Zulkarnain, Md Fadzullah, Siti Hajar Sheikh
Format: Conference or Workshop Item
Language:English
Published: 2023
Online Access:http://eprints.utem.edu.my/id/eprint/27900/1/Thermal%20properties%20of%20spent%20coffee%20ground%20biocomposite%20using%20epoxy%20resin%20matrix.pdf
http://eprints.utem.edu.my/id/eprint/27900/
https://pubs.aip.org/aip/acp/article-abstract/2613/1/020009/2866389/Thermal-properties-of-spent-coffee-ground?redirectedFrom=fulltext
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spelling my.utem.eprints.279002024-09-20T16:13:29Z http://eprints.utem.edu.my/id/eprint/27900/ Thermal properties of spent coffee ground biocomposite using epoxy resin matrix Ismail Aini, Quratul Maulida, Cut Rizka Mursal Jalil, Zulkarnain Md Fadzullah, Siti Hajar Sheikh Coffee is one of the most popular drinks in the world. The use of coffee produces a large amount of coffee waste (spent coffee grounds). These spent coffee grounds contain cellulose and hemicellulose which have the potential to be used as a biocomposite material. The objective of this work was to study the thermal properties of spent coffee grounds biocomposite by using epoxy resin as a matrix. The particle size of spent coffee grounds was 20 and 40 mesh. The compositions of spent coffee grounds and epoxy resin for each particle size were 80/20, 85/15, 90/10, and 95/05 (vol.%). The biocomposite samples have been successfully fabricated by using the press method with 9 tons of load. The density and porosity of biocomposite samples have been examined. The thermal conductivity of biocomposite samples has been measured by a single-plate method. Differential scanning calorimetry and thermogravimetric analysis and have been also used to analyze the thermal properties of samples. The results found that the density of spent coffee grounds biocomposite was 0.605 – 0.789 g/cm3. The porosity of biocomposite samples was found to be in the range of 12 – 14%. TGA showed that the spent coffee grounds biocomposite had a stable weight up to 250 °C. Fast decomposition of the sample occurred after 250 °C. DSC spectra showed that there was an endothermic peak at 85 °C with the enthalpy change of 218 J/g. Another endothermic peak was also observed at 466 °C, related to the thermal depolymerization of the samples. The thermal conductivity of the spent coffee grounds biocomposite was 0.038 – 0.054 W/m K indicating that the spent coffee grounds biocomposite is quite suitable for thermal insulation. Composition spent coffee ground has a significant effect on the thermal and physical properties of biocomposite. This work found that the thermal conductivity of biocomposite correlates with its density and porosity. 2023 Conference or Workshop Item PeerReviewed text en http://eprints.utem.edu.my/id/eprint/27900/1/Thermal%20properties%20of%20spent%20coffee%20ground%20biocomposite%20using%20epoxy%20resin%20matrix.pdf Ismail and Aini, Quratul and Maulida, Cut Rizka and Mursal and Jalil, Zulkarnain and Md Fadzullah, Siti Hajar Sheikh (2023) Thermal properties of spent coffee ground biocomposite using epoxy resin matrix. In: 11th Annual International Conference: On Sciences and Engineering, AIC 2021, 29 September 2021through 30 September 2021, Banda Aceh. https://pubs.aip.org/aip/acp/article-abstract/2613/1/020009/2866389/Thermal-properties-of-spent-coffee-ground?redirectedFrom=fulltext
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
description Coffee is one of the most popular drinks in the world. The use of coffee produces a large amount of coffee waste (spent coffee grounds). These spent coffee grounds contain cellulose and hemicellulose which have the potential to be used as a biocomposite material. The objective of this work was to study the thermal properties of spent coffee grounds biocomposite by using epoxy resin as a matrix. The particle size of spent coffee grounds was 20 and 40 mesh. The compositions of spent coffee grounds and epoxy resin for each particle size were 80/20, 85/15, 90/10, and 95/05 (vol.%). The biocomposite samples have been successfully fabricated by using the press method with 9 tons of load. The density and porosity of biocomposite samples have been examined. The thermal conductivity of biocomposite samples has been measured by a single-plate method. Differential scanning calorimetry and thermogravimetric analysis and have been also used to analyze the thermal properties of samples. The results found that the density of spent coffee grounds biocomposite was 0.605 – 0.789 g/cm3. The porosity of biocomposite samples was found to be in the range of 12 – 14%. TGA showed that the spent coffee grounds biocomposite had a stable weight up to 250 °C. Fast decomposition of the sample occurred after 250 °C. DSC spectra showed that there was an endothermic peak at 85 °C with the enthalpy change of 218 J/g. Another endothermic peak was also observed at 466 °C, related to the thermal depolymerization of the samples. The thermal conductivity of the spent coffee grounds biocomposite was 0.038 – 0.054 W/m K indicating that the spent coffee grounds biocomposite is quite suitable for thermal insulation. Composition spent coffee ground has a significant effect on the thermal and physical properties of biocomposite. This work found that the thermal conductivity of biocomposite correlates with its density and porosity.
format Conference or Workshop Item
author Ismail
Aini, Quratul
Maulida, Cut Rizka
Mursal
Jalil, Zulkarnain
Md Fadzullah, Siti Hajar Sheikh
spellingShingle Ismail
Aini, Quratul
Maulida, Cut Rizka
Mursal
Jalil, Zulkarnain
Md Fadzullah, Siti Hajar Sheikh
Thermal properties of spent coffee ground biocomposite using epoxy resin matrix
author_facet Ismail
Aini, Quratul
Maulida, Cut Rizka
Mursal
Jalil, Zulkarnain
Md Fadzullah, Siti Hajar Sheikh
author_sort Ismail
title Thermal properties of spent coffee ground biocomposite using epoxy resin matrix
title_short Thermal properties of spent coffee ground biocomposite using epoxy resin matrix
title_full Thermal properties of spent coffee ground biocomposite using epoxy resin matrix
title_fullStr Thermal properties of spent coffee ground biocomposite using epoxy resin matrix
title_full_unstemmed Thermal properties of spent coffee ground biocomposite using epoxy resin matrix
title_sort thermal properties of spent coffee ground biocomposite using epoxy resin matrix
publishDate 2023
url http://eprints.utem.edu.my/id/eprint/27900/1/Thermal%20properties%20of%20spent%20coffee%20ground%20biocomposite%20using%20epoxy%20resin%20matrix.pdf
http://eprints.utem.edu.my/id/eprint/27900/
https://pubs.aip.org/aip/acp/article-abstract/2613/1/020009/2866389/Thermal-properties-of-spent-coffee-ground?redirectedFrom=fulltext
_version_ 1811599520845266944
score 13.211869

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