The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules
In this study, Sylgard 184 silicone rubber (SylSR) matrix composites with shear thickening fluid (STF) microcapsules (SylSR/STF) were fabricated. Their mechanical behaviors were characterized by dynamic thermo-mechanical analysis (DMA) and quasi-static compression. Their damping properties increased...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/12/2704 |
| _version_ | 1797592897323794432 |
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| author | Chun Wei Xiaofei Hao Chaoying Mao Fachun Zhong Zhongping Liu |
| author_facet | Chun Wei Xiaofei Hao Chaoying Mao Fachun Zhong Zhongping Liu |
| author_sort | Chun Wei |
| collection | DOAJ |
| description | In this study, Sylgard 184 silicone rubber (SylSR) matrix composites with shear thickening fluid (STF) microcapsules (SylSR/STF) were fabricated. Their mechanical behaviors were characterized by dynamic thermo-mechanical analysis (DMA) and quasi-static compression. Their damping properties increased with the addition ofSTF into the SR in DMA tests and the SylSR/STF composites presented decreased stiffness and an obvious positive strain rate effect in the quasi-static compression test. Moreover, the impact resistance behavior of the SylSR/STF composites was tested by the drop hammer impact test. The addition of STF enhanced the impact protective performance of silicone rubber, and the impact resistance increased with the increase of STF content, which should be ascribed to the shear thickening and energy absorption of STF microcapsules in the composites. Meanwhile, in another matrix, hot vulcanized silicone rubber (HTVSR) with a mechanical strength higher than Sylgard 184, the impact resistance capacity of its composite with STF (HTVSR/STF) was also examined by the drop hammer impact test. It is interesting to note that the strength of the SR matrix obviously influenced the enhancement effect of STF on the impact resistance of SR. The stronger the strength of SR, the better the effect of STF on improving the impact protective performance of SR. This study not only provides a new method for packaging STF and improving the impact resistance behavior of SR, but is also beneficial for the design of STF-related protective functional materials and structures. |
| first_indexed | 2024-03-11T02:00:43Z |
| format | Article |
| id | doaj.art-23e5c0ec68474615ac465bac760238ce |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T02:00:43Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-23e5c0ec68474615ac465bac760238ce2023-11-18T12:13:34ZengMDPI AGPolymers2073-43602023-06-011512270410.3390/polym15122704The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid MicrocapsulesChun Wei0Xiaofei Hao1Chaoying Mao2Fachun Zhong3Zhongping Liu4Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, ChinaInstitute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, ChinaInstitute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, ChinaInstitute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, ChinaInstitute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, ChinaIn this study, Sylgard 184 silicone rubber (SylSR) matrix composites with shear thickening fluid (STF) microcapsules (SylSR/STF) were fabricated. Their mechanical behaviors were characterized by dynamic thermo-mechanical analysis (DMA) and quasi-static compression. Their damping properties increased with the addition ofSTF into the SR in DMA tests and the SylSR/STF composites presented decreased stiffness and an obvious positive strain rate effect in the quasi-static compression test. Moreover, the impact resistance behavior of the SylSR/STF composites was tested by the drop hammer impact test. The addition of STF enhanced the impact protective performance of silicone rubber, and the impact resistance increased with the increase of STF content, which should be ascribed to the shear thickening and energy absorption of STF microcapsules in the composites. Meanwhile, in another matrix, hot vulcanized silicone rubber (HTVSR) with a mechanical strength higher than Sylgard 184, the impact resistance capacity of its composite with STF (HTVSR/STF) was also examined by the drop hammer impact test. It is interesting to note that the strength of the SR matrix obviously influenced the enhancement effect of STF on the impact resistance of SR. The stronger the strength of SR, the better the effect of STF on improving the impact protective performance of SR. This study not only provides a new method for packaging STF and improving the impact resistance behavior of SR, but is also beneficial for the design of STF-related protective functional materials and structures.https://www.mdpi.com/2073-4360/15/12/2704shear thickening fluidsilicone rubbermicrocapsuleimpact resistance behavior |
| spellingShingle | Chun Wei Xiaofei Hao Chaoying Mao Fachun Zhong Zhongping Liu The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules Polymers shear thickening fluid silicone rubber microcapsule impact resistance behavior |
| title | The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules |
| title_full | The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules |
| title_fullStr | The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules |
| title_full_unstemmed | The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules |
| title_short | The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules |
| title_sort | mechanical properties of silicone rubber composites with shear thickening fluid microcapsules |
| topic | shear thickening fluid silicone rubber microcapsule impact resistance behavior |
| url | https://www.mdpi.com/2073-4360/15/12/2704 |
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