为制备具有抗菌和导电性能的柔性电子器件,将多巴胺在碱性有氧条件下聚合在蚕丝织物表面,以硝酸银和吡咯为原料,通过氧化还原反应生成银和聚吡咯,得到具有高效抗菌活性和导电性的聚吡咯/银/聚多巴胺蚕丝织物。采用红外光谱、扫描电镜和X射线衍射对聚吡咯/银/聚多巴胺蚕丝织物表面形貌和结构进行分析。测试其表面热稳定性能和疏水性能。此外,通过抑菌圈的方法测试其表面抗菌性能,发现聚吡咯/银/聚多巴胺蚕丝织物可快速杀死金黄色葡萄球菌和大肠杆菌。最后,利用四探针测试仪,探究了不同吡咯和硝酸银浓度对复合织物导电性能的影响。该蚕丝织物有望应用于柔性可穿戴电子器件和传感器等领域。
In order to prepare flexible electronic devices with antibacterial and conductive properties,dopamine was polymerized on the surface of silk fabric under alkaline aerobic condition.Silver and polypyrrole were synthesized by REDOX reaction using silver nitrate and pyrrole as raw materials,and then polypyrrole/silver/polydopamine silk fabric with high antibacterial activity and conductivity was obtained.The surface morphology and structure of polypyrrole/silver/polydopamine silk fabric were analyzed by infrared spectroscopy,scanning electron microscopy and X-ray diffraction.The thermal stability and hydrophobicity of its surface were tested.In addition,the bacteriostatic ring test revealed that the polypyrrole/silver/polydopamine silk fabric could kill Staphylococcus aureus and Escherichia coli rapidly.Finally,the influence of different concentration of pyrrole and silver nitrate on the electrical conductivity of composite fabric was investigated by using four-probe tester.The silk fabric was expected to be used in the fields of flexible wearable electronic devices,biological devices and sensors.
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基金资助
中国博士后科学基金资助项目(2021M701449);江苏省博士后科研资助计划项目(2021K080A);江苏省先进纺织工程技术中心协同创新基金(XJFZ/2021/10,XJFZ/2021/19);浙江省清洁染整技术研究重点实验室开放基金资助(QJRZ2109)
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