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Preparation of Antibacterial Waterborne Polyurethane/silver Nanocomposite |
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| Authors: | Chein‐I Wu Jiann‐Wen Huang Ya‐Lan Wen Shaw‐Bing Wen Yun‐Hwei Shen Mou‐Yung Yeh |
| Affiliation: | 1. Department of Resources Engineering, National Cheng Kung University, 1 Ta‐Hseu Rd., Tainan, Taiwan, R.O.C.;2. Tainan Woman's College of Arts & Technology, 529 Chung Cheng Rd., Yung Kang City, 710, Taiwan, R.O.C.;3. Department of Nursing, Meiho Institute of Technology, 23 Ping Kuang Rd., Neipu Hsiang, Pingtung 912, Taiwan, R.O.C.;4. Center for General Education, Meiho Institute of Technology, 23 Ping Kuang Rd., Neipu Hsiang, Pingtung 912, Taiwan, R.O.C.;5. Department of Chemistry, National Cheng Kung University, 1 Ta‐Hseu Rd., Tainan, Taiwan, R.O.C.;6. Sastainable Enoirionment Research Center, National Cheng Kung University, 1 Ta‐Hseu Rd., Tainan, Taiwan, R.O.C. |
| Abstract: | Stable aqueous dispersions of silver (Ag) nanoparticles were prepared by reducing silver nitrate solutions with sodium borohydride (NaBH4) in the presence of waterborne polyurethane as a stabilizing agent. WPU/Ag nanocomposites were obtained after evaporating water. Transmission electron microscope (TEM) shows nanoscale Ag particles are well dispersed in WPU matrix at a lower concentration, while particles exhibit a little aggregation at a higher concentration. UV‐visible spectra, X‐ray powder diffraction, and energy dispersive X‐ray spectrometer (EDS) confirm the existence of Ag particle in WPU matrix. The WPU/Ag composite films show good antibiotic ability. |
| Keywords: | Waterborne polyurethane WPU/Ag nanocomposites Antibiotic ability Ag particle |