Hyperbranched polyurethane/triethanolamine functionalized multi‐walled carbon nanotube nanocomposites as remote induced smart materials
Abstract
Triethanolamine functionalized multi‐walled carbon nanotubes (TEA‐f‐MWCNTs)/hyperbranched polyurethane nanocomposites were prepared by the in situ polymerization technique. The functionalization of the MWCNTs was confirmed by Fourier transform infrared spectroscopy and Raman spectroscopy studies. The homogeneous distribution and the strong interfacial interaction of TEA‐f‐MWCNTs with the polyurethane chains were confirmed by transmission electron microscopy and Fourier transform infrared spectroscopy studies, respectively. Significant enhancements of tensile strength (6.5 − 28.5 MPa) and scratch resistance (3–7 kg) with content of TEA‐f‐MWCNTs (0–2 wt%) were observed. Thermogravimetric analysis showed an increase in thermal stability from 240 to 287 °C by the formation of nanocomposites. X‐ray diffraction and differential scanning calorimetry studies confirmed an increment in the degree of crystallinity of the nanocomposites with increase in TEA‐f‐MWCNT content. The extent of shape recovery as well as recovery speed were enhanced with increase in the output power of the microwave. Thus the studied nanocomposites could be utilized as non‐contact microwave energy tunable shape memory materials. © 2013 Society of Chemical Industry
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SMCs with good performances can be obtained using triethanolamine functionalized MWCNTs (TEA-f-MWCNTs, MWCNTs up to 2 wt%).
“SMCs with good performances can be also obtained using triethanolamine functionalized MWCNTs (TEA-f-MWCNTs, MWCNTs up to 2 wt%) [116].”
From Shape-memory polymers for multiple applications in the materials world (2016) · cites this paper as [116]
As a result of homogeneous distribution and strong interfacial interaction of TEA-f-MWCNTs with PU chains (hydrogen bonding and polar-polar interactions), the nanocomposite presented significant thermal stability, increased degree of crystallinity, enhanced tensile strength (28.5 MPa) and scratch resistance (7 kg).
“As a result of the homogeneous distribution and the strong interfacial interaction of TEA-f-MWCNTs with the PU chains (hydrogen bonding and polar-polar interactions), the nanocomposite presented: significant thermal stability accompanied with increased degree of crystallinity, enhanced tensile strength (28.5 MPa) and scratch resistance (7 kg).”
From Shape-memory polymers for multiple applications in the materials world (2016) · cites this paper as [116]
The shape recovery rate and shape recovery time were tuned upon microwave irradiation and depended strongly on the source power.
“The shape recovery rate and shape recovery time was tuned upon microwave irradiation and depended strongly on the source power (Fig. 9(b)).”
From Shape-memory polymers for multiple applications in the materials world (2016) · cites this paper as [116]
Cites
Cuevas, J. M., Rubio, R., Germán, L., Laza, J. M., Vilas, J. L., Rodriguez, M., & León, L. M. (2012) · Soft Matter · doi:10.1039/c2sm07481h · Cited by 75 · see citing works
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Shape-memory polymers for multiple applications in the materials world
Pilate, F., Toncheva, A., Dubois, P., & Raquez, J.-M. (2016) · European Polymer Journal · doi:10.1016/j.eurpolymj.2016.05.004 · Cited by 332 · see citing works
- Authors
- Kalita, H., & Karak, N.
- Affiliations
- Tezpur University (IN)
- Corresponding author
- Karak, Niranjan
- Venue
- Polymer International
- Publisher
- Wiley
- Published
- 2014-01-20
- Volume
- 63
- Issue
- 7
- Pages
- 1295-1302
- ISSN
- 0959-8103 (ISSN-L)
- 1097-0126
- OpenAlex
- W1954981995
- Cited by
- 20
- References
- 1
- Citations by year
- 2024: 3 · 2023: 1 · 2022: 2 · 2021: 1 · 2019: 5 · 2018: 1 · 2016: 3 · 2015: 3 · 2014: 1
- FWCI
- 1.05
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Polymer International (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Carbon Nanotubes in Composites
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Electromagnetic wave absorption materials
- Keywords
- hyperbranched polyurethane, multi-walled carbon nanotubes, polymer nanocomposites, in situ polymerization, shape memory materials, tensile strength, scratch resistance, thermal stability, crystallinity, interfacial interactions
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