Viannie, Leema Rose and Banapurmath, N. R. and Soudagar, Manzoore Elahi M. and Nandi, Anilkumar and Hossain, Nazia and Shellikeri, Ashwini and Kaulgud, Vinita and Mujtaba, Ma and Khan, Sher Afghan and Asif, Mohammad (2021) Electrical and mechanical properties of flexible multiwalled carbon nanotube/poly (dimethylsiloxane) based nanocomposite sheets. Journal of Environmental Chemical Engineering, 9 (6). ISSN 2213-2929, DOI https://doi.org/10.1016/j.jece.2021.106550.
Full text not available from this repository.Abstract
In this study, the development of highly flexible polymer nanocomposite sheets using multi-walled carbon nanotube (MWCNT) in a poly (dimethylsiloxane) (PDMS) matrix has been presented. Solution processing technique was employed, and MWCNTs were dispersed in n-hexane, and PDMS is resulting in a homogenous dispersion (between 2 wt% and 10 wt%). Scanning electron micrograph (SEM) images show the distribution of MWCNTs within PDMS matrix, which form continuous conductive networks resulting in percolation threshold even at 2 wt% filler concentrations. The electrical conductivity of the fabricated nanocomposite sheets was found to be about 1.3-158.2 S/m. Samples with 2 wt% and 4 wt% filler concentrations exhibit excellent temporal stability both in ambient and vacuum conditions, with near-zero temperature coefficient of resistance. The nanocomposite sheets used for mechanical studies were made as per ASTM D-412-C standards. For an optimal filler concentration of 5.58 wt% can be observed with stiffness of 0.486 MPa, the tensile strength of 0.422 MPa, the electrical conductivity of about 39.5 S/m, and elongation up to 120%. Therefore, this filler concentration is most suited for fabricating flexible strain sensors with good conductivity and temporal stability.
| Item Type: | Article |
|---|---|
| Funders: | King Saud University [RSP-2021/42] |
| Uncontrolled Keywords: | Carbon nanotubes; Nanocomposites; Poly(dimethylsiloxane); Flexible sensor; Tensile strength; Strain sensor |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 09 Jun 2022 03:25 |
| Last Modified: | 09 Jun 2022 03:25 |
| URI: | http://eprints.um.edu.my/id/eprint/34398 |
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