Multifunctional colored polyester fabric treated with dopamine hydrochloride at room temperature: higher tensile,hydrophilicity and anti-bacterial properties along with aminolysis |
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Authors: | Leila Rastegar Majid Montazer Hamdam Gaminian |
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Affiliation: | 1.Department of Textile Engineering, Amirkabir University of Technology,Functional Fibrous Structures & Environmental Enhancement (FFSEE),Tehran,Iran;2.Department of Textile Engineering, Amirkabir Nanotechnology Research Institute (ANTRI), Amirkabir University of Technology,Functional Fibrous Structures and Environmental Enhancement (FFSEE),Tehran,Iran |
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Abstract: | In this work, dopamine hydrochloride, an environmental friendly compound, was applied on polyester fabric through conventional simple impregnation method in alkaline solution (pH=8.5) at room temperature. In situ spontaneous oxidative polymerization of dopamine form polydopamine (PDA) along with aminolysis of polyester fabric surface. Also, a range of colored polyester fabric were successfully achieved by formation of polydopamine adhesive coating layer at different concentration of dopamine hydrochloride (0.001-4 g/l). Fourier transform infrared spectroscopy and field emission scanning electron microscopy showed deposition of polydopmaine on the polyester fabric surface. The modified colored polyester fabric showed reasonable durability against washing, rubbing and light. The treated polyester fabric with 2 g/l dopamine hydrochloride as optimum concentration indicated not only lower spreading time for water droplet and electrical resistance with higher tensile strength but also very good bactericidal activity against Staphylococcus aureus and Escherichia coli. |
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