在一次性外科手套上,MAO陶涂层具有环状阵列纹理的tribological特性
Jing Ji1, Zhenbo Bai1, Jinfeng Wang1
1Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Frontiers in bioengineering and biotechnology
|May 16, 2024
概括
这项研究用激光微弧氧化 (MAO) 陶涂层增强 (Mg) 合金表面. 纹理涂层显著增加摩擦,改善手术工具的抓地力,减少手术过程中的滑动.
科学领域:
- 生物材料工程 生物材料工程
- 表面科学是一门学科.
- 部落学 (tribology) 是一个学科.
背景情况:
- (Mg) 合金在生物医学应用中越来越多地使用.
- 像微弧氧化 (MAO) 这样的表面修饰技术改善了Mg合金的性能.
- 增强的表面摩擦对于手术工具处理至关重要.
研究的目的:
- 在AZ31 Mg合金上开发一种结合激光纹理和MAO的新型表面修饰.
- 评估开发的涂层的微观结构,耐磨性和摩擦性质.
- 评估改善手术工具握力和防止滑动的潜力.
主要方法:
- 使用激光对AZ31 Mg合金表面进行了纹理,以创建一个微升高的圆环阵列.
- 应用微弧氧化 (MAO) 来制造密集的陶涂层.
- 在生理盐水和绵羊血滑下,分析了与手术手套的摩擦性能,比较了纹理,无纹理和316L表面.
主要成果:
- 激光MAO陶涂层表现出均的生长和孔隙性降低 (从14.3%降至7.8%).
- 纹理涂层表现出良好的耐磨性.
- 激光MAO纹理表面的摩擦系数 (COF) 与无纹理和316L表面相比显著更高.
结论:
- 激光纹理和MAO技术的结合有效地在Mg合金上产生密集的陶涂层.
- 结合圆环的纹理显著增强了滑下的表面摩擦.
- 这种表面修改为改善手术工具抓地力和防止滑动提供了有希望的解决方案.
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