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| 1 | 新型人工关节材料UHMWPE中添加剂结构的研究显示文摘合成了乙二胺缩水杨醛西佛碱铜配合物、1,6-己二胺缩水杨醛西佛碱铜配合物、1,2-环己二胺缩水杨醛西佛碱铜配合物、邻苯二胺缩水杨醛西佛碱铜配合物和纳米级乙二胺缩水杨醛西佛碱铜配合物共5种二胺缩水杨醛西佛碱铜配合物作为改性超高分子量聚乙烯(UHMWPE)的添加剂。通过傅里叶变换红外光谱仪和扫描电镜对产物的结构、形貌和粒径进行了表征。采用往复摩擦磨损试验机研究了改性UHMWPE/钛合金的摩擦系数,并测定磨损表面三维形貌。结果表明:烷基越小改性活性越高,烷基最小的乙二胺缩水杨醛西佛碱铜配合物的摩擦学改性活性最高;在改性添加剂低用量(5%)情况下,对于减少改性UHMWPE的磨损,纳米级乙二胺缩水杨醛西佛碱铜配合物粉体比微米级添加剂效果更加显著。 | 傅晶 左波 吴莉 | 2018 | 武汉工程大学学报2018，40，2： | 6 |
| 2 | Frictional behaviors of rough soft contact on wet and dry pipeline surfaces:With application to deepwater pipelaying显示文摘Elastic rubbers are widely used in nature and engineering.In order to better understand soft rough contact under dry and wet conditions during deepwater pipelaying process,various polyurethane(PU)discs both in PU-pipe and PU-steel sliding combinations have been investigated by using self-developed tribometer.The tribological test results show that the friction coefficient can be clearly seen:PU90 | TAN GuiBin WANG DeGuo LIU ShuHai WANG Hao ZHANG SiWei | 2013 | Science China(Technological Sciences)2013，56，12： | 4 |
| 3 | 国内全膝关节置换磨损测试及数值模拟研究进展显示文摘人工膝关节磨损的模拟机测试及数值模拟是体外评价假体磨损性能、预测膝关节产品临床表现的重要方法。基于文献检索,在步态运动条件下,对国内学者体外磨损测试采用的力学和运动学曲线及国人测量的曲线进行对比,并对体外模拟机试验和数值模拟模型的方法进行对比、归纳和分析;结果表明,国内测量数据还不能直接作为模拟机磨损测试和数值模拟的加载条件,国人的膝关节力学和运动学数据与国际标准相比有所差异。对于体外模拟机测试,国内不同机构的测试方法相近,但结果有一定差别。对于磨损数值计算研究,国内与国外基本同步,但是磨损计算结果较体外测试均较低。基于国人膝关节力学和运动学数据的人工膝关节磨损性能评价体系是研究的方向。 | 崔文 杨抒 张小刚 张亚丽 张静 张骁 陈瑱贤 靳忠民 | 2021 | 中华骨科杂志2021，41，7： | 2 |
| 4 | Biodegradable lubricating mesoporous silica nanoparticles for osteoarthritis therapy显示文摘Osteoarthritis is characterized by lubrication failure of the articular cartilage and severe inflammation of the joint capsule.Lubricating mesoporous silica nanoparticles(MSNs)have been developed for the treatment of osteoarthritis based on enhanced lubrication and local drug delivery.However,MSNs are difficult to degrade in vivo in a short time,resulting in potential toxic effect due to bioaccumulation.In this study,biodegradable MSNs(bMSNs)were prepared through an oil–water biphase stratification method,and modified with poly(2-methacryloyloxyethyl phosphocholine)(PMPC)to synthesize lubricating drug-loaded nanoparticles(bMSNs–NH_(2)@PMPC)by photopolymerization.The in vitro degradation test demonstrated that the bMSNs and bMSNs–NH_(2)@PMPC almost degraded within 7 days.The tribiological test showed that the lubrication property of the bMSNs–NH2@PMPC was greatly improved,with a reduction of 50%in the friction coefficient(COF)compared with the bMSNs.It was attributed to hydration lubrication mechanism by which a tenacious hydration layer is formed surrounding the zwitterionic headgroups(N+(CH_(3))^(3)and PO4-)in PMPC polyelectrolyte polymer.Additionally,the bMSNs–NH_(2)@PMPC maintained excellent lubrication property under degradation and achieved sustained drug release behavior compared with the bMSNs.In summary,the biodegradable bMSNs–NH2@PMPC developed in this study with the properties of enhanced lubrication and drug delivery may be a promising approach for osteoarthritis therapy. | Li WAN Yi WANG Xiaolong TAN Yulong SUN Jing LUO Hongyu ZHANG | 2022 | Friction2022，10，1： | 2 |
| 5 | Investigation on tribological behaviors of the modified UHMWPE with different structures of Schiff base copper complexes显示文摘Investigation on the law of tribological modifying activity influenced by structure of additives will make prediction and design of materials tribological behaviors possible.Four types of diamine Schiff base Cu(II)complexes as additives for modifying UHMWPE are synthesized,they are respectively:Cu(II)complex with ethlenediamion-N,N′-bis(salicylidene),Cu(II)complex with 1,6-hexanediamine-N,N′-bis(salicylidene),Cu(II)complex with 1,2-cyclohexanediamion-N,N′-bis(salicylidene)and Cu(II)complex with 1,2-phenylendiamion-N,N′-bis(salicylidene).Friction coefficient of the modified UHMWPE/Ti6Al4V is studied using a reciprocating friction and wear tester between line/surface contacts sliding in reciprocating under the condition of boundary lubrication with 25 vol% calf serum deionized water solution,at the same time volume loss of wear of the polymers is measured.3D topographies of the worn surfaces of the polymers and images of the worn surfaces of titanium alloys against the polymers are investigated respectively by CWLM and SEM.How the structural unit R of Schiff base copper complexes in the modified UHMWPE influences their tribological modifying activity is also discussed.Results show that the smaller the group R is,the higher the modifying activity is obtained,and the open chain is more reactive than that of alkyl and aromatic ring.Therefore,the Cu(II)complex with ethlenediamion-N,N′-bis(salicylidene)has the highest tribological modifying activity as its R group is the smallest and open. | WU Li GAO XinLei GAO WanZhen | 2013 | Science China(Technological Sciences)2013，56，12： | 0 |
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