任乃飞,宋佳佳,李保家,黄立静,李志祥,辛志铎.飞秒激光刻蚀氧化锆表面微纳结构及其润湿与抗菌性能[J].表面技术,2022,51(9):359-370.
REN Nai-fei,SONG Jia-jia,LI Bao-jia,HUANG Li-jing,LI Zhi-xiang,XIN Zhi-duo.Micro-nano Structures, Wettability and Antibacterial Property on Zirconia Surfaces by Femtosecond Laser Etching[J].Surface Technology,2022,51(9):359-370 |
| 飞秒激光刻蚀氧化锆表面微纳结构及其润湿与抗菌性能 |
| Micro-nano Structures, Wettability and Antibacterial Property on Zirconia Surfaces by Femtosecond Laser Etching |
| |
| DOI：10.16490/j.cnki.issn.1001-3660.2022.09.038 |
| 中文关键词: 氧化锆 飞秒激光 化学修饰 微纳结构 润湿性 抗菌性 |
| 英文关键词:zirconia femtosecond laser chemical modification micro-nano structure wettability antibacterial property |
| 基金项目:国家自然科学基金(51805220，61405078) |
|
|
| Author | Institution |
| REN Nai-fei | School of Mechanical Engineering, Jiangsu Zhenjiang 212013, China;Jiangsu Provincial Key Laboratory of Center for Photon Manufacturing Science and Technology,Jiangsu Zhenjiang 212013, China |
| SONG Jia-jia | School of Mechanical Engineering, Jiangsu Zhenjiang 212013, China;Jiangsu Provincial Key Laboratory of Center for Photon Manufacturing Science and Technology,Jiangsu Zhenjiang 212013, China |
| LI Bao-jia | Jiangsu Provincial Key Laboratory of Center for Photon Manufacturing Science and Technology,Jiangsu Zhenjiang 212013, China ;School of Materials Science and Engineering,Jiangsu Zhenjiang 212013, China ;Institute of Micro-Nano Optoelectronic and Terahertz Technology, Jiangsu University, Jiangsu Zhenjiang 212013, China |
| HUANG Li-jing | School of Mechanical Engineering, Jiangsu Zhenjiang 212013, China;Jiangsu Provincial Key Laboratory of Center for Photon Manufacturing Science and Technology,Jiangsu Zhenjiang 212013, China ;Institute of Micro-Nano Optoelectronic and Terahertz Technology, Jiangsu University, Jiangsu Zhenjiang 212013, China |
| LI Zhi-xiang | Jiangsu Provincial Key Laboratory of Center for Photon Manufacturing Science and Technology,Jiangsu Zhenjiang 212013, China ;School of Materials Science and Engineering,Jiangsu Zhenjiang 212013, China |
| XIN Zhi-duo | School of Mechanical Engineering, Jiangsu Zhenjiang 212013, China;Jiangsu Provincial Key Laboratory of Center for Photon Manufacturing Science and Technology,Jiangsu Zhenjiang 212013, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 构筑氧化锆表面微纳结构，提高表面疏水性能。方法 用飞秒激光在氧化锆表面刻蚀网格结构，随后用硬脂酸修饰所得表面，系统研究了激光能量密度、激光扫描速度对氧化锆表面形貌及润湿性的影响，分析不同处理条件下氧化锆的表面形貌和润湿性，通过润湿模型进一步揭示润湿性转变内在机理。进一步通过在饱和大肠杆菌溶液中浸泡的试验，对不同处理条件下氧化锆表面的抗菌性能进行了测试和分析。结果 在9.6 J/cm2的过高能量密度以及10 mm/s的过小扫描速度下会导致氧化锆表面过度烧蚀，破坏表面微结构，不利于提高表面疏水性。发现激光纹理化氧化锆的最佳参数为激光能量密度8.3 J/cm2，扫描速度20 mm/s，制备的微凸起结构为表面覆盖大量纳米结构的周期性锥状阵列，凹槽的平均宽度和平均深度分别为(27.598±1.376)μm和(33.825±0.559)μm，此时表面粗糙度最大为9.556 μm，随着表面粗糙度的增加，微纳复合结构可以截留更多的空气，减少固液接触面积，表面具有最大的水接触角为(163.9±1.5)°，最小的水滚动角为(4.3±0.8)°。平板菌落计数法测定结果显示，此时硬脂酸修饰的激光纹理化氧化锆超疏水表面的抗菌率最高，为(89.1±3.6)%。结论 采用飞秒激光刻蚀结合硬脂酸修饰的方法，通过激光参数优化，可在氧化锆表面产生微纳复合结构，增加其表面粗糙度，从而制备得到疏水甚至超疏水的氧化锆表面，超疏水氧化锆表面截留的空气层对大肠杆菌的黏附具有很好的抑制作用，表现出明显的抗菌性，有望扩展氧化锆在牙科领域的应用。 |
| 英文摘要: |
| Laser etching is an advanced surface processing technology, which can produce micro-nano surface structures with regular patterns and significantly improve the surface roughness. Compared with other laser etching, femtosecond laser etching on zirconia surface can greatly reduce thermal side effects such as thermal crack and heat-affected zone. In this paper, the zirconia surface is etched by femtosecond laser along a mesh pattern and then is modified with stearic acid. By changing the laser processing parameters, different surface micro/nano structures are obtained, and the surface morphology and wettability of the resulting zirconia samples are studied. Furthermore, the antibacterial properties of the zirconia surfaces obtained under different treatment conditions are tested and analyzed by using E.coli as test bacteria. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501715号