Synthesis of HBP-HTC and its application to cotton fabric as an antimicrobial auxiliary |
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| Authors: | Feng Zhang Yuyue Chen Hong Ling Desuo Zhang |
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| Institution: | (1) College of Textile and Clothing Engineering, Soochow University, Suzhou, 215021, P.R. China;(2) Department of Textile Engineering, Shazhou Institute of Technology, Zhangjiagang, 215600, P.R. China |
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| Abstract: | A quaternary ammonium compound, 2-hydroxypropyltrimethylammonium chloride amino-terminated hyper-branched polymer (HBP-HTC),
was synthesized from an amino-terminated hyperbranched polymer (HBP-NH2) and 2,3-epoxypropyltrimethylammonium chloride (EPTAC) as a grafting agent in aqueous solution. Its molecular weight and
possible structure were characterized by gel permeation chromatography (GPC), Fourier transform infrared spectroscopy (FTIR)
and nuclear magnetic resonance spectroscopy (1H-NMR). The cotton fabric was treated with 2 g/l HBP-HTC aqueous solution for 30 min at room temperature to provide the cotton fabric with antimicrobial properties. The antimicrobial
activities of the HBP-HTC aqueous solutions and the HBP-HTC treated cotton fabrics were evaluated quantitatively. The results
indicated that the HBP-HTC treated cotton fabric showed 99.92 % reduction of bacteria S. aureus and 99.66 % reduction of bacteria E. coli, respectively. The antimicrobial activities of the HBP-HTC treated cotton fabrics were maintained at over 99.00 % reduction
level even after being exposed to 20 consecutive home laundering conditions. |
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| Keywords: | HBP-HTC Antimicrobial activity Cotton fabric |
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