Self-similar arrays of carbon nanotubes and nonwoven fibers with tunable surface wettability

•Self-similar CNTs and nonwoven fiber surfaces with controllable surface wettability.•Analytical model to guide the apparent contact angle of CNT decorated nonwovens.•A satisfactory agreement has been observed between the theory and experiments. Self-similar materials can assist in the transition of...

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Veröffentlicht in:Materials letters 2018-10, Vol.228, p.133-136
Hauptverfasser: Nagy, Krisztina, Rajput, Krishn Gopal, Tóth, Ildikó Y., Rao, P.V. Kameswara, Sharma, Sumit, Kumar, Vijay, Rawal, Amit, Kukovecz, Akos
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Sprache:eng
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Zusammenfassung:•Self-similar CNTs and nonwoven fiber surfaces with controllable surface wettability.•Analytical model to guide the apparent contact angle of CNT decorated nonwovens.•A satisfactory agreement has been observed between the theory and experiments. Self-similar materials can assist in the transition of hydrophobic to hydrophilic state in a well-controlled manner. Herein, we report an ensemble of carboxylic functionalized carbon nanotubes (CNTs) decorated on the self-similar nonwoven surface using a facile, scalable and inexpensive vacuum filtration process for tunable surface wettability. Increasing the amount of CNTs combined with the vacuum assisted nonwoven material reduced the apparent equilibrium contact angle systematically. A simple analytical model has been proposed to predict the apparent equilibrium contact angle by formulating a direct relationship with the structural parameters of CNTs and nonwoven materials. In general, a satisfactory agreement was observed between the theoretical and experimental apparent equilibrium contact angles of CNT decorated nonwoven materials.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2018.05.085