The role of prepared ZnO nanoparticles on improvement of mechanical and antibacterial properties of flexible polyurethane foams: experimental modeling
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The antibacterial polyurethane foam-ZnO nanocomposites with high strength are prepared along with reducing the amount of consumable tin catalyst. The effect of three key parameters on the foams strength (weight percentage of ZnO nanoparticles, isocyanate index, and amount of tin catalyst) is optimized using response surface methodology. The cellular morphology and matrix structure of prepared foams were investigated by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy respectively. In addition, using tensile tests, the optimum conditions found for the maximum tensile strength (193.5 kPa) were isocyanate index: 109, tin catalyst: 0.14 g per 100 g polyol, and weight percentage of ZnO nanoparticles: 1.5 with good agreement between the predicted and experimental values. Moreover, the results of compression strength of the samples showed that the resistance to compression of the optimal nanocomposite was increased in comparison with the neat foams. The antibacterial activity of the optimal nanocomposite was investigated against Escherichia coli and Staphylococcus aureus bacteria. Eventually, the results showed that the synthetic foam with optimal conditions in addition to high strength compared to pure foam requires less tin catalyst and has appropriate antibacterial properties.
KeywordsPolyurethane foam nanocomposite Tin catalyst High strength RSM Antibacterial
The authors thank the University of Zanjan, Iran for financial and other supports.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 3.Fabris H (1976) Advances in urethane science and technology. Technomic, New YorkGoogle Scholar
- 4.Woods G (1987) ICI polyurethanes. Wiley, New YorkGoogle Scholar
- 5.Lamba NMK, Woodhouse KA, Cooper SL (1998) Polyurethanes in biomedical applications. CRC Press, FloridaGoogle Scholar
- 9.Abhilash M (2010) Insilico analysis of cranberry proanthocyanidin epicatechin (4beta-8, 2beta-0-7) as an inhibitor for modelled afimbrial adhesin virulence protein of uropathogenic Escherichia coli. Int J Pharm Biol Sci 1:1–7Google Scholar
- 10.Shi LE, Xing L, Hou B, Ge H, Guo X, Tang Z (2010) Inorganic nano mental oxides used as anti-microorganism agents for pathogen control. In: Mendez-Vilas A (ed) Current research, technology and education topics in applied microbiology and microbial, 2nd edn. Formatex Research Center, SpainGoogle Scholar
- 15.Ebrahimiasl S, Zakaria A, Kassim A, Basri SN (2015) Novel conductive polypyrrole/zinc oxide/chitosan bionanocomposite: synthesis, characterization, antioxidant, and antibacterial activities. Int J Nanomed 10:217Google Scholar
- 23.Ashton Acton Q (2013) Carbamates—advances in research and application. Scholarly Editions, Atlanta, GeorgiaGoogle Scholar
- 29.de Mello D, Pezzin SH, Amico SC (2009) The effect of post-consumer PET particles on the performance of flexible polyurethane foams. PolymTest 28:702–708Google Scholar
- 32.Montgomery DC (1997) Design and analysis of experiment, 5th edn. Wiley, New YorkGoogle Scholar