冲击载荷作用下蛋白质水溶液润滑吸附膜的生长特性

发布时间：2018-03-08 18:09

  本文选题：冲击润滑　切入点：蛋白质吸附　出处：《医用生物力学》2017年06期 　论文类型：期刊论文

【摘要】：目的研究蛋白质水溶液挤压润滑条件下材料表面蛋白质吸附膜的动态生长特性及其影响因素。方法利用光干涉技术测量球盘点接触在循环冲击条件下BSA蛋白质水溶液的吸附膜厚的生长过程,并研究冲击载荷、冲击次数、材料表面性质对BSA水溶液的吸附成膜特性的影响。结果动态条件下蛋白质润滑吸附膜要比静态工况下的升高很多,冲击条件下蛋白质吸附膜不断生长,并最终达到稳定厚度。小载荷和疏水材料表面有利于蛋白质润滑吸附膜的生长。钢表面极易形成较厚吸附膜,而陶瓷表面吸附膜厚较低。结论针对冲击载荷作用下蛋白质水溶液润滑吸附膜的生长特性研究对人工关节磨损、松动等的治疗、预防具有一定的临床指导意义。
[Abstract]:Objective to study the dynamic growth characteristics and influencing factors of protein adsorption film on the surface of protein solution under the condition of squeeze lubrication of protein solution. Methods BSA protein water was measured by means of light interferometry under cyclic impact conditions. The growth process of the adsorption film thickness of the solution, The effects of impact load, impact times and material surface properties on the adsorption properties of BSA aqueous solution were studied. The protein adsorption film grows continuously under the shock condition, and finally reaches the stable thickness. The small load and hydrophobic material surface are favorable to the protein lubricating adsorption film growth, the steel surface is easy to form the thicker adsorption film, Conclusion the study on the growth characteristics of protein aqueous solution lubricated adsorption film under impact load has a certain clinical significance for the treatment and prevention of artificial joint wear and loosening.
【作者单位】： 青岛理工大学机械工程学院;
【基金】：教育部博士点基金(20133721110002)
【分类号】：R318.17
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本文编号：1584989