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請使用永久網址來引用或連結此文件:
https://irlib.pccu.edu.tw/handle/987654321/32157
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| 題名: | Synthesis and properties of antibacterial polyurethane with novel Bis(3-pyridinemethanol) silver chain extender |
| 作者: | Tsou, Chi-Hui
Lee, Hsun-Tsing
Hung, Wei-Song
Wang, Chyung-Chyung
Shu, Chia-Chen
Suen, Maw-Cherng
De Guzman, Manuel |
| 貢獻者: | 紡工系 |
| 關鍵詞: | Polyurethane
Chain extender
Bis(3-pyridinemethanol) silver
Antibacterial
Positron annihilation lifetime spectroscopy
Free volume |
| 日期: | 2016-02-24 |
| 上傳時間: | 2016-03-11 15:25:32 (UTC+8) |
| 摘要: | To synthesize antibacterial polyurethane (PU) films, a novel chain extender, bis(3-pyridinemethanol) silver (BPDS), and a PU prepolymer were also synthesized through coordination and covalent reactions. The effects of incorporating different amounts of BPDS were investigated by characterizing the BPDS/PU films using various instruments: FTIR, TGA, DSC, DMA, XRD, EDX, universal testing machine, contact angle goniometer, and positron annihilation spectroscopy (PALS). With a higher BPDS content, the glass transition temperature, final degradation temperature, and Young's modulus were all enhanced; however, the tensile strength and elongation at break were both reduced. PALS analysis revealed that the more rigid and randomly packed structure of the BPDS/PU films at a higher BPDS content was characterized by a broader free volume size distribution that consisted largely of much smaller free volume holes. Quantitative tests with Staphylococcus aureus and Escherichia coli indicated excellent antibacterial properties, suggesting that the PU films could be used repeatedly. (C) 2016 Elsevier Ltd. All rights reserved. |
| 關聯: | POLYMER 卷: 85 頁碼: 96-105 |
| 顯示於類別: | [紡織工程學系] 期刊論文
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