纺织学报 ›› 2024, Vol. 45 ›› Issue (08): 26-34.doi: 10.13475/j.fzxb.20240400901
• 纺织科技新见解学术沙龙专栏:先进非织造品与技术 • 上一篇 下一篇
吕子豪1, 徐慧慧1, 袁小红2, 王清清1, 魏取福1()
LÜ Zihao1, XU Huihui1, YUAN Xiaohong2, WANG Qingqing1, WEI Qufu1()
摘要:
为解决传统抗菌非织造用品防护性能差、制备成本高和潜在毒性大等问题,以水刺棉为基材,通过低分子质量壳聚糖改性、柠檬酸共价交联和光敏剂染整一体化负载工艺,制备了具有高效广谱、抗菌耐久、安全低毒和绿色低碳的光动力抗菌水刺棉。利用紫外/可见光分光光度计、傅里叶红外光谱仪、荧光光谱仪对光动力水刺棉的化学结构和光动力学性能进行表征,通过抗菌实验探究了不同接触时间下光动力水刺棉的抗菌性能与抗菌耐久性能。结果显示:光动力水刺棉在10 min光照下能够淬灭50%以上的1,3-二苯基异苯并呋喃,属于主导能量转移的Ⅱ型光动力机制,在15 min内杀灭99%以上的金黄色葡萄球菌,在60 min内杀灭90%以上的大肠杆菌,表明功能化的水刺棉具有优异的光动力抗菌特性;此外,光动力水刺棉经光漂白和水洗使役后仍具有显著的抗菌耐久性,均可满足生物医用材料对生物安全性的要求,具有大规模制备新一代光触媒非织造用品的应用潜力。
中图分类号:
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