Polystyrene/thermoplastic polyurethane interpenetrating network-based nanocomposite with high-speed, thermo-responsive shape memory behavior

Ghosh T, Voit B, Karak N (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Polymer Elsevier

Book Volume: 200

Article Number: 122575

DOI: 10.1016/j.polymer.2020.122575

Abstract

In the recent years, generation of flexible, mechanically tough, shape memory (SM) polymers has gained a remarkable significance both in academic section and in the field of soft robotics, smart textiles, self-deployable structures (especially used in aerospace), actuators, bio-medical devices and so on. But designing of such materials poses a credible challenge to researchers in the field. Hence, in this work, we develop a bis(hydroxyalkyl)-poly(dimethylsiloxane) capped-(3-aminopropyl)trimethoxysilane functionalized-hydroxy iron oxide anchored-reduced graphene oxide nanohybrid which serves as a reinforcing agent for the generation of nanocomposites with SM, self-tightening and hydrophobic attributes. The prepared polystyrene/thermoplastic polyurethane (PS/TPU) interpenetrating network (IPN) nanocomposites recover their original shape at a faster rate (within 20–40s upon thermal heating and within 100–140s upon exposure to sunlight) compared to other similar type SM materials (require h to min). Moreover, the nanocomposites also showed thermally actuated artificial muscle-like and self-tightening behaviors. In addition, the nanocomposite containing 1 wt% nanohybrid demonstrated >200% increase in tensile strength, >120% increase in initial thermal degradation temperature, and strong surface hydrophobicity (static contact angle >120°). Therefore, the reported nanocomposites have considerable prospect for different smart applications.

Involved external institutions

Tezpur University IN India (IN) Leibniz-Institut für Polymerforschung Dresden e. V. DE Germany (DE)

How to cite

APA:

Ghosh, T., Voit, B., & Karak, N. (2020). Polystyrene/thermoplastic polyurethane interpenetrating network-based nanocomposite with high-speed, thermo-responsive shape memory behavior. Polymer, 200. https://doi.org/10.1016/j.polymer.2020.122575

MLA:

Ghosh, Tuhin, Brigitte Voit, and Niranjan Karak. "Polystyrene/thermoplastic polyurethane interpenetrating network-based nanocomposite with high-speed, thermo-responsive shape memory behavior." Polymer 200 (2020).

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