Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium Dioxide
The increasing demand for polymer composites with novel or improved properties requires novel fillers. To meet the challenges posed, nanofillers such as graphene, carbon nanotubes, and titanium dioxide (TiO<sub>2</sub>) have been used. In the present work, few-layer graphene (FLG) and ir...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/10/1550 |
| _version_ | 1797534349249216512 |
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| author | Vineet Kumar Anuj Kumar Minseok Song Dong-Joo Lee Sung-Soo Han Sang-Shin Park |
| author_facet | Vineet Kumar Anuj Kumar Minseok Song Dong-Joo Lee Sung-Soo Han Sang-Shin Park |
| author_sort | Vineet Kumar |
| collection | DOAJ |
| description | The increasing demand for polymer composites with novel or improved properties requires novel fillers. To meet the challenges posed, nanofillers such as graphene, carbon nanotubes, and titanium dioxide (TiO<sub>2</sub>) have been used. In the present work, few-layer graphene (FLG) and iron oxide (Fe<sub>3</sub>O<sub>4</sub>) or TiO<sub>2</sub> were used as fillers in a room-temperature-vulcanized (RTV) silicone rubber (SR) matrix. Composites were prepared by mixing RTV-SR with nanofillers and then kept for vulcanization at room temperature for 24 h. The RTV-SR composites obtained were characterized with respect to their mechanical, actuation, and magnetic properties. Fourier-transform infrared spectroscopy (FTIR) analysis was performed to investigate the composite raw materials and finished composites, and X-ray photoelectron spectroscopy (XPS) analysis was used to study composite surface elemental compositions. Results showed that mechanical properties were improved by adding fillers, and actuation displacements were dependent on the type of nanofiller used and the applied voltage. Magnetic stress-relaxation also increased with filler amount and stress-relaxation rates decreased when a magnetic field was applied parallel to the deformation axes. Thus, this study showed that the inclusion of iron oxide (Fe<sub>3</sub>O<sub>4</sub>) or TiO<sub>2</sub> fillers in RTV-SR improves mechanical, actuation, and magnetic properties. |
| first_indexed | 2024-03-10T11:28:23Z |
| format | Article |
| id | doaj.art-037fc2e5db6f462f8b48203cad849963 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T11:28:23Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-037fc2e5db6f462f8b48203cad8499632023-11-21T19:24:35ZengMDPI AGPolymers2073-43602021-05-011310155010.3390/polym13101550Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium DioxideVineet Kumar0Anuj Kumar1Minseok Song2Dong-Joo Lee3Sung-Soo Han4Sang-Shin Park5School of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaSchool of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaGraduate School of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaSchool of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaSchool of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaSchool of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaThe increasing demand for polymer composites with novel or improved properties requires novel fillers. To meet the challenges posed, nanofillers such as graphene, carbon nanotubes, and titanium dioxide (TiO<sub>2</sub>) have been used. In the present work, few-layer graphene (FLG) and iron oxide (Fe<sub>3</sub>O<sub>4</sub>) or TiO<sub>2</sub> were used as fillers in a room-temperature-vulcanized (RTV) silicone rubber (SR) matrix. Composites were prepared by mixing RTV-SR with nanofillers and then kept for vulcanization at room temperature for 24 h. The RTV-SR composites obtained were characterized with respect to their mechanical, actuation, and magnetic properties. Fourier-transform infrared spectroscopy (FTIR) analysis was performed to investigate the composite raw materials and finished composites, and X-ray photoelectron spectroscopy (XPS) analysis was used to study composite surface elemental compositions. Results showed that mechanical properties were improved by adding fillers, and actuation displacements were dependent on the type of nanofiller used and the applied voltage. Magnetic stress-relaxation also increased with filler amount and stress-relaxation rates decreased when a magnetic field was applied parallel to the deformation axes. Thus, this study showed that the inclusion of iron oxide (Fe<sub>3</sub>O<sub>4</sub>) or TiO<sub>2</sub> fillers in RTV-SR improves mechanical, actuation, and magnetic properties.https://www.mdpi.com/2073-4360/13/10/1550rubber compositeshybrid fillerfew-layer graphenetitanium dioxideiron oxide |
| spellingShingle | Vineet Kumar Anuj Kumar Minseok Song Dong-Joo Lee Sung-Soo Han Sang-Shin Park Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium Dioxide Polymers rubber composites hybrid filler few-layer graphene titanium dioxide iron oxide |
| title | Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium Dioxide |
| title_full | Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium Dioxide |
| title_fullStr | Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium Dioxide |
| title_full_unstemmed | Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium Dioxide |
| title_short | Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium Dioxide |
| title_sort | properties of silicone rubber based composites reinforced with few layer graphene and iron oxide or titanium dioxide |
| topic | rubber composites hybrid filler few-layer graphene titanium dioxide iron oxide |
| url | https://www.mdpi.com/2073-4360/13/10/1550 |
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