Curing Temperature Effects on the Tensile Properties and Hardness of γ−Fe2O3 Reinforced PDMS Nanocomposites
The mechanical properties of plain polydimethylsiloxane (PDMS) and its nanocomposites have been exploited for various theranostic biomedical applications. Although several research groups have investigated the effects of preparation conditions—especially curing temperature and time—on bulk mechanica...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/6562373 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561460130086912 |
|---|---|
| author | Yvonne Konku-Asase Abu Yaya Kwabena Kan-Dapaah |
| author_facet | Yvonne Konku-Asase Abu Yaya Kwabena Kan-Dapaah |
| author_sort | Yvonne Konku-Asase |
| collection | DOAJ |
| description | The mechanical properties of plain polydimethylsiloxane (PDMS) and its nanocomposites have been exploited for various theranostic biomedical applications. Although several research groups have investigated the effects of preparation conditions—especially curing temperature and time—on bulk mechanical properties of plain PDMS, there are no reported similar studies for its nanocomposites. In this study, mechanical properties of PDMS reinforced by different volume fractions (ϕmnp=0–2 vol. %) of γ-Fe2O3 nanoparticles (NPs) were investigated and quantitative data presented for different curing temperatures (25, 100, and 150°C). To a large extent, γ-Fe2O3 NPs were uniformly dispersed in the PDMS matrix with no primary chemical bonds formed. For the temperatures tested, the data showed an increase for Young’s modulus (E) of about 170% (1.36–3.71 MPa) and a decrease of the ultimate tensile strength (UTS) of about 65% (6.48–2.93 MPa) with increasing concentration of the NPs. Furthermore, hardness (Shore A) (H) increased with curing temperature but decreased with concentration. Based on the findings, we conclude that the linear relationship between the calculated mechanical properties (E, UTS, H) and small ϕmnp is independent of the curing temperature. The experimental data provide useful background information for the selection of processing parameters for PDMS nanocomposite fabrication. |
| format | Article |
| id | doaj-art-ce8efe89a1624da788fb36b5228dc619 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-ce8efe89a1624da788fb36b5228dc6192025-02-03T01:24:57ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/65623736562373Curing Temperature Effects on the Tensile Properties and Hardness of γ−Fe2O3 Reinforced PDMS NanocompositesYvonne Konku-Asase0Abu Yaya1Kwabena Kan-Dapaah2Department of Biomedical Engineering, School of Engineering Sciences, P.O. Box LG 77, Legon, GhanaDepartment of Materials Science and Engineering, School of Engineering Sciences, P.O. Box LG 77, Legon, GhanaDepartment of Biomedical Engineering, School of Engineering Sciences, P.O. Box LG 77, Legon, GhanaThe mechanical properties of plain polydimethylsiloxane (PDMS) and its nanocomposites have been exploited for various theranostic biomedical applications. Although several research groups have investigated the effects of preparation conditions—especially curing temperature and time—on bulk mechanical properties of plain PDMS, there are no reported similar studies for its nanocomposites. In this study, mechanical properties of PDMS reinforced by different volume fractions (ϕmnp=0–2 vol. %) of γ-Fe2O3 nanoparticles (NPs) were investigated and quantitative data presented for different curing temperatures (25, 100, and 150°C). To a large extent, γ-Fe2O3 NPs were uniformly dispersed in the PDMS matrix with no primary chemical bonds formed. For the temperatures tested, the data showed an increase for Young’s modulus (E) of about 170% (1.36–3.71 MPa) and a decrease of the ultimate tensile strength (UTS) of about 65% (6.48–2.93 MPa) with increasing concentration of the NPs. Furthermore, hardness (Shore A) (H) increased with curing temperature but decreased with concentration. Based on the findings, we conclude that the linear relationship between the calculated mechanical properties (E, UTS, H) and small ϕmnp is independent of the curing temperature. The experimental data provide useful background information for the selection of processing parameters for PDMS nanocomposite fabrication.http://dx.doi.org/10.1155/2020/6562373 |
| spellingShingle | Yvonne Konku-Asase Abu Yaya Kwabena Kan-Dapaah Curing Temperature Effects on the Tensile Properties and Hardness of γ−Fe2O3 Reinforced PDMS Nanocomposites Advances in Materials Science and Engineering |
| title | Curing Temperature Effects on the Tensile Properties and Hardness of γ−Fe2O3 Reinforced PDMS Nanocomposites |
| title_full | Curing Temperature Effects on the Tensile Properties and Hardness of γ−Fe2O3 Reinforced PDMS Nanocomposites |
| title_fullStr | Curing Temperature Effects on the Tensile Properties and Hardness of γ−Fe2O3 Reinforced PDMS Nanocomposites |
| title_full_unstemmed | Curing Temperature Effects on the Tensile Properties and Hardness of γ−Fe2O3 Reinforced PDMS Nanocomposites |
| title_short | Curing Temperature Effects on the Tensile Properties and Hardness of γ−Fe2O3 Reinforced PDMS Nanocomposites |
| title_sort | curing temperature effects on the tensile properties and hardness of γ fe2o3 reinforced pdms nanocomposites |
| url | http://dx.doi.org/10.1155/2020/6562373 |
| work_keys_str_mv | AT yvonnekonkuasase curingtemperatureeffectsonthetensilepropertiesandhardnessofgfe2o3reinforcedpdmsnanocomposites AT abuyaya curingtemperatureeffectsonthetensilepropertiesandhardnessofgfe2o3reinforcedpdmsnanocomposites AT kwabenakandapaah curingtemperatureeffectsonthetensilepropertiesandhardnessofgfe2o3reinforcedpdmsnanocomposites |