Mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk

Thermosetting epoxies are low-density polymers with excellent adhesion, mechanical properties, and resistance to environmental degradation. They are widely used as molds and castings for manufacturing, protective coatings, and reinforcement material for aircraft. However, polymer brittleness is a ma...

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Main Authors: Hamid, Norul Hisham, Wan Baderul Hisan, Wan Sulwani Izzati, Abdullah, Ummi Hani, Abdul Azim, Ammir Affan, Md. Tahir, Paridah
Format: Article
Language:English
Published: North Carolina State University 2019
Online Access:http://psasir.upm.edu.my/id/eprint/81316/1/Mechanical%20propereties%20and%20moisture%20absorption%20.pdf
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author Hamid, Norul Hisham
Wan Baderul Hisan, Wan Sulwani Izzati
Abdullah, Ummi Hani
Abdul Azim, Ammir Affan
Md. Tahir, Paridah
author_facet Hamid, Norul Hisham
Wan Baderul Hisan, Wan Sulwani Izzati
Abdullah, Ummi Hani
Abdul Azim, Ammir Affan
Md. Tahir, Paridah
author_sort Hamid, Norul Hisham
collection UPM
description Thermosetting epoxies are low-density polymers with excellent adhesion, mechanical properties, and resistance to environmental degradation. They are widely used as molds and castings for manufacturing, protective coatings, and reinforcement material for aircraft. However, polymer brittleness is a major disadvantage preventing its widespread application. The addition of filler materials such as nanoparticles has attracted considerable attention. Using reinforcement materials for biocomposite derived from a natural, renewable and sustainable material will lower the manufacturing cost for epoxy composites. This study investigated the physical and mechanical properties of epoxy composites reinforced with amorphous and crystalline silica. The amorphous and crystalline silica were obtained by the precipitation method from the carbonization of rice husk at 700 °C and 1000 °C for 6 h, separately. The epoxy resin was mixed with 5 wt%, 10 wt%, and 15 wt% concentrations (by weight) of amorphous and crystalline silica, separately. Silica 10 nm to 30 nm in size was obtained, as observed by scanning electron microscopy (SEM). The epoxy nano-crystalline silica composite had a significantly lower thickness swelling value compared to the epoxy nano-amorphous silica composite. However, the epoxy nano-crystalline silica composite had significantly better mechanical properties.
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spelling upm.eprints-813162021-11-06T00:01:20Z http://psasir.upm.edu.my/id/eprint/81316/ Mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk Hamid, Norul Hisham Wan Baderul Hisan, Wan Sulwani Izzati Abdullah, Ummi Hani Abdul Azim, Ammir Affan Md. Tahir, Paridah Thermosetting epoxies are low-density polymers with excellent adhesion, mechanical properties, and resistance to environmental degradation. They are widely used as molds and castings for manufacturing, protective coatings, and reinforcement material for aircraft. However, polymer brittleness is a major disadvantage preventing its widespread application. The addition of filler materials such as nanoparticles has attracted considerable attention. Using reinforcement materials for biocomposite derived from a natural, renewable and sustainable material will lower the manufacturing cost for epoxy composites. This study investigated the physical and mechanical properties of epoxy composites reinforced with amorphous and crystalline silica. The amorphous and crystalline silica were obtained by the precipitation method from the carbonization of rice husk at 700 °C and 1000 °C for 6 h, separately. The epoxy resin was mixed with 5 wt%, 10 wt%, and 15 wt% concentrations (by weight) of amorphous and crystalline silica, separately. Silica 10 nm to 30 nm in size was obtained, as observed by scanning electron microscopy (SEM). The epoxy nano-crystalline silica composite had a significantly lower thickness swelling value compared to the epoxy nano-amorphous silica composite. However, the epoxy nano-crystalline silica composite had significantly better mechanical properties. North Carolina State University 2019-08 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/81316/1/Mechanical%20propereties%20and%20moisture%20absorption%20.pdf Hamid, Norul Hisham and Wan Baderul Hisan, Wan Sulwani Izzati and Abdullah, Ummi Hani and Abdul Azim, Ammir Affan and Md. Tahir, Paridah (2019) Mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk. BioResources, 14 (3). pp. 7363-7374. ISSN 1930-2126 https://bioresources.cnr.ncsu.edu/resources/mechanical-properties-and-moisture-absorption-of-epoxy-composites-mixed-with-amorphous-and-crystalline-silica-from-rice-husk/ 10.15376/biores.14.3.7363-7374
spellingShingle Hamid, Norul Hisham
Wan Baderul Hisan, Wan Sulwani Izzati
Abdullah, Ummi Hani
Abdul Azim, Ammir Affan
Md. Tahir, Paridah
Mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk
title Mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk
title_full Mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk
title_fullStr Mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk
title_full_unstemmed Mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk
title_short Mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk
title_sort mechanical propereties and moisture absorption of epoxy composite mixed with amorphous and crystalline silica from rice husk
url http://psasir.upm.edu.my/id/eprint/81316/1/Mechanical%20propereties%20and%20moisture%20absorption%20.pdf
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