混合聚合物的机械和抗菌性质 生物医学应用的复合钢筋
N Babers1, M G D El-Sherbiny2, M El-Shazly2
1Mechatronic Program Faculty of Engineering and Technology, Egyptian Chinese University, Cairo, Egypt.
Journal of biomaterials science. Polymer edition
|October 9, 2023
概括
一种由高密度聚乙烯,酸和二氧化纳米颗粒组成的新混合复合物显示出生物医学用途的前景. 最佳配方,HDPE-30%HAP-10%Ti,表现出优越的机械强度,耐磨性和抗菌性质.
科学领域:
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
背景情况:
- 生物相容材料对于医疗植入物至关重要.
- 高密度聚乙烯 (HDPE) 复合材料具有潜力,但需要增强的机械和 tribological 属性.
- 纳入酸 (HAp) 和二氧化 (Ti) 纳米颗粒可以提高复合材料的性能.
研究的目的:
- 为了研究HDPE-HAp-Ti混合复合材料的生物相容性,机械强度和tribological特性.
- 确定最佳成分,以提高生物医学应用中的性能.
- 评估开发的复合材料的抗菌活性.
主要方法:
- 使用双螺丝挤压制造HDPE-HAp-Ti混合复合材料的制造.
- 通过扫描电子显微镜 (SEM),传输电子显微镜 (TEM) 和X射线衍射 (XRD) 进行微结构分析.
- 机械测试 (拉力,曲,硬度),三角学测试 (摩擦,磨损) 和抗菌检测对E. 大肠杆菌和S. coli和S. 黄金色. 黄金色
主要成果:
- 最佳的复合材料,HDPE-30%HAP-10%Ti,显示出优良的机械性能 (拉伸强度25.93MPa,Young的模量为480MPa).
- 这种配方实现了低摩擦系数 (COF∼0.07) 和高耐磨性 (磨损率~1m).
- 对E.具有显著的抗性. 大肠杆菌和S. coli和S. 观测到了 aureus 的细菌生长.
结论:
- HDPE-30%HAP-10%Ti复合材料表现出卓越的生物相容性,机械完整性和三元学性能.
- 这种混合复合物是各种生物医学应用的有希望的候选者.
- 增强混合复合材料比传统材料具有优势,突出了微观结构和属性相关性的重要性.
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