Swellable elastomeric HNBR-MgO composite : magnesium oxide as a novel swelling and reinforcement filler
In this paper, we introduce a novel reactive rubber composite made by compounding magnesium oxide (MgO) powder with hydrogenated nitrile butadiene rubber (HNBR). This HNBR-MgO composite system initially looks and behaves like rubber, but exposure to water causes it to swell and stiffen. Compared wit...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/103632 http://hdl.handle.net/10220/19373 |
| _version_ | 1824453685655109632 |
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| author | Han, Dingzhi Qu, Meng Yue, Chee Yoon Lou, Yucun Musso, Simone Robisson, Agathe |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Han, Dingzhi Qu, Meng Yue, Chee Yoon Lou, Yucun Musso, Simone Robisson, Agathe |
| author_sort | Han, Dingzhi |
| collection | NTU |
| description | In this paper, we introduce a novel reactive rubber composite made by compounding magnesium oxide (MgO) powder with hydrogenated nitrile butadiene rubber (HNBR). This HNBR-MgO composite system initially looks and behaves like rubber, but exposure to water causes it to swell and stiffen. Compared with conventional swellable materials, which lose stiffness significantly upon swelling, the sealing capacity of these novel reactive composites improves significantly with their improved stiffness. Three mixing ratios of HNBR and MgO were examined in this study, and their properties upon reaching equilibrium in water of 82°C were reported. The elastic modulus value tripled, reaching 80 MPa, while doubling in volume for the rubber filled with 40% by volume of MgO. After drying, modulus of this particular composite increased even further to almost 200 MPa while the volume expansion was largely retained (shrinkage of approximately 10%). In this paper, we will show that the increase in elastic modulus and volume increase are related to the reaction of MgO with water to form magnesium hydroxide, absorbing water molecules into the composite and chemically reacting with it in the process. |
| first_indexed | 2025-02-19T03:10:21Z |
| format | Journal Article |
| id | ntu-10356/103632 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:10:21Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1036322023-03-04T17:20:32Z Swellable elastomeric HNBR-MgO composite : magnesium oxide as a novel swelling and reinforcement filler Han, Dingzhi Qu, Meng Yue, Chee Yoon Lou, Yucun Musso, Simone Robisson, Agathe School of Mechanical and Aerospace Engineering School of Materials Science & Engineering DRNTU::Engineering::Materials::Composite materials In this paper, we introduce a novel reactive rubber composite made by compounding magnesium oxide (MgO) powder with hydrogenated nitrile butadiene rubber (HNBR). This HNBR-MgO composite system initially looks and behaves like rubber, but exposure to water causes it to swell and stiffen. Compared with conventional swellable materials, which lose stiffness significantly upon swelling, the sealing capacity of these novel reactive composites improves significantly with their improved stiffness. Three mixing ratios of HNBR and MgO were examined in this study, and their properties upon reaching equilibrium in water of 82°C were reported. The elastic modulus value tripled, reaching 80 MPa, while doubling in volume for the rubber filled with 40% by volume of MgO. After drying, modulus of this particular composite increased even further to almost 200 MPa while the volume expansion was largely retained (shrinkage of approximately 10%). In this paper, we will show that the increase in elastic modulus and volume increase are related to the reaction of MgO with water to form magnesium hydroxide, absorbing water molecules into the composite and chemically reacting with it in the process. Accepted version 2014-05-20T01:42:56Z 2019-12-06T21:16:44Z 2014-05-20T01:42:56Z 2019-12-06T21:16:44Z 2014 2014 Journal Article Han, D., Qu, M., Yue, C. Y., Lou, Y., Musso, S., & Robisson, A. (2014). Swellable elastomeric HNBR-MgO composite: Magnesium oxide as a novel swelling and reinforcement filler. Composites Science and Technology, in press. https://hdl.handle.net/10356/103632 http://hdl.handle.net/10220/19373 10.1016/j.compscitech.2014.05.002 179263 en Composites science and technology © 2014 Published by Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Composites Science and Technology, Published by Elsevier Ltd.. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.compscitech.2014.05.002]. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Composite materials Han, Dingzhi Qu, Meng Yue, Chee Yoon Lou, Yucun Musso, Simone Robisson, Agathe Swellable elastomeric HNBR-MgO composite : magnesium oxide as a novel swelling and reinforcement filler |
| title | Swellable elastomeric HNBR-MgO composite : magnesium oxide as a novel swelling and reinforcement filler |
| title_full | Swellable elastomeric HNBR-MgO composite : magnesium oxide as a novel swelling and reinforcement filler |
| title_fullStr | Swellable elastomeric HNBR-MgO composite : magnesium oxide as a novel swelling and reinforcement filler |
| title_full_unstemmed | Swellable elastomeric HNBR-MgO composite : magnesium oxide as a novel swelling and reinforcement filler |
| title_short | Swellable elastomeric HNBR-MgO composite : magnesium oxide as a novel swelling and reinforcement filler |
| title_sort | swellable elastomeric hnbr mgo composite magnesium oxide as a novel swelling and reinforcement filler |
| topic | DRNTU::Engineering::Materials::Composite materials |
| url | https://hdl.handle.net/10356/103632 http://hdl.handle.net/10220/19373 |
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