Abstract
In this study, lightweight and flexible polyurethane (PU) foams loaded with multiwalled carbon nanotubes (MWCNTs) are synthesized by the free-rising foaming process. The CNT's surface functionality influences cellular structure and mechanical, acoustic wave absorption characteristics of the nanocomposite foams. Flow resistivity and compressive mechanical properties of the fabricated samples have been studied. The acoustic wave absorbency within a wide range of frequencies (63–6300 Hz) was evaluated for the prepared PU/CNT foamed nanocomposite samples. Results indicated that carbon nanotubes' functionalization enhanced the acoustic absorption coefficient above 1000 Hz frequencies. The unfunctionalized-based PU/CNT nanocomposite foam exhibited better acoustical properties within low frequencies. In addition, by functionalizing MWCNT, the nanocomposite foams' mechanical dam** behavior decreases, indicating enhanced interfaces between PU segments and CNT particles via functionalization, which leads to a lower viscous response to the mechanical field.
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References
Niyogi S, Hamon M, Hu H, Zhao B, Bhowmik P, Sen R et al (2002) Chemistry of single-walled carbon nanotubes. Acc Chem Res 35:1105–1113
Moniruzzaman M, Winey KI (2006) Polymer nanocomposites containing carbon nanotubes. Macromolecules 39:5194–5205
Ma P-C, Siddiqui NA, Marom G, Kim J-K (2010) Dispersion and functionalization of carbon nanotubes for polymer-based nanocomposites: a review. Compos A Appl Sci Manuf 41:1345–1367
Hirsch A (2002) Functionalization of single-walled carbon nanotubes. Angew Chem Int Ed 41:1853–1859
Balasubramanian K, Burghard M (2005) Chemically functionalized carbon nanotubes. Small 1:180–192
Hirsch A, Vostrowsky O (2005) Functionalization of carbon nanotubes. Springer, Functional molecular nanostructures, pp 193–237
Tasis D, Tagmatarchis N, Bianco A, Prato M (2006) Chemistry of carbon nanotubes. Chem Rev 106:1105–1136
Bernal MM, Martin-Gallego M, Romasanta LJ, Mortamet A-C, López-Manchado MA, Ryan AJ et al (2012) Effect of hard segment content and carbon-based nanostructures on the kinetics of flexible polyurethane nanocomposite foams. Polymer 53:4025–4032
Verdejo R, Bernal MM, Romasanta LJ, Tapiador FJ, Lopez-Manchado MA (2011) Reactive nanocomposite foams. Cell Polym 30:45–62
Verdejo R, Stämpfli R, Alvarez-Lainez M, Mourad S, Rodriguez-Perez M, Brühwiler P et al (2009) Enhanced acoustic dam** in flexible polyurethane foams filled with carbon nanotubes. Compos Sci Technol 69:1564–1569
Bandarian M, Shojaei A, Rashidi AM (2011) Thermal, mechanical and acoustic dam** properties of flexible open-cell polyurethane/multi-walled carbon nanotube foams: effect of surface functionality of nanotubes. Polym Int 60:475–482
Basirjafari S, Malekfar R, Khadem SE (2012) Low loading of carbon nanotubes to enhance acoustical properties of poly (ether) urethane foams. J Appl Phys 112:104312
Lee J, Kim GH, Ha CS (2012) Sound absorption properties of polyurethane/nano-silica nanocomposite foams. J Appl Polym Sci 123:2384–2390
Yang Z, Yuan L, Gu Y, Li M, Sun Z, Zhang Z (2013) Improvement in mechanical and thermal properties of phenolic foam reinforced with multiwalled carbon nanotubes. J Appl Polym Sci 130:1479–1488
Bahrambeygi H, Sabetzadeh N, Rabbi A, Nasouri K, Shoushtari AM, Babaei MR (2013) Nanofibers (PU and PAN) and nanoparticles (Nanoclay and MWNTs) simultaneous effects on polyurethane foam sound absorption. J Polym Res 20:1–10
Bernal MM, Lopez-Manchado MA, Verdejo R (2011) In situ foaming evolution of flexible polyurethane foam nanocomposites. Macromol Chem Phys 212:971–979
Gheydari M, Dorraji MS, Fazli M, Rasoulifard M, Almaie S, Daneshvar H et al (2021) Preparation of open-cell polyurethane nanocomposite foam with Ag 3 PO 4 and GO: antibacterial and adsorption characteristics. J Polym Res 28:1–12
Hasani Baferani A, Ohadi A, Katbab AA (2021) Toward mechanistic understanding the effect of aspect ratio of carbon nanotubes upon different properties of polyurethane/carbon nanotube nanocomposite foam. Polym Eng Sci 61:3037–3049
Baferani AH, Keshavarz R, Asadi M, Ohadi A (2018) Effects of silicone surfactant on the properties of open-cell flexible polyurethane foams. Adv Polym Technol 37:21643
Hasani Baferani A, Katbab AA, Ohadi AR (2017) The role of sonication time upon acoustic wave absorption efficiency, microstructure, and viscoelastic behavior of flexible polyurethane/CNT nanocomposite foam. Eur Polymer J 90:383–391
Allard J, Atalla N (2009) Propagation of sound in porous media: modelling sound absorbing materials 2Ed. John Wiley & Sons
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This paper resulted from a Ph.D. project (ethics code number: AUT.P6 169) approved by the Graduate Committee of Amirkabir University of Technology (Tehran Polytechnic).
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Hasani Baferani, A., Katbab, A.A. & Ohadi, A.R. Study the effects of functionality of carbon nanotubes upon acoustic wave absorption coefficient, microstructure, and viscoelastic behavior of polyurethane/CNT nanocomposite foam. J Polym Res 29, 227 (2022). https://doi.org/10.1007/s10965-022-03086-3
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DOI: https://doi.org/10.1007/s10965-022-03086-3