Tribology of human skin and mechanical skin equivalents in contact with textiles
Tribology of human skin and mechanical skin equivalents in contact with textiles
复制标题
DOI：
10.1016/j.wear.2006.11.031
复制
发表时间：
2007-09-10
期刊：
影响因子：
5
通讯作者：
Gerhardt, L.-C.
中科院分区：
文献类型：
--
作者：
Derler, S.;Schrade, U.;Gerhardt, L.-C.
使用测力板对12名受试者进行了未经处理的人皮肤(手指)与参考纺织品的摩擦试验。在触摸实验中，受试者在1.5+/-0.7N的正常载荷下评估纺织品的表面粗糙度，平均摩擦系数在0.27到0.71之间，由于皮肤水合状态的不同，个体之间的摩擦系数有所不同。在受试者改变法向载荷的实验中，摩擦系数在相同的范围内，并且几乎没有载荷依赖性，这表明粘着和滞后都对摩擦行为起作用。将人体皮肤的结果与使用不同硅胶和聚氨酯材料作为机械皮肤当量的表观摩擦测量结果进行了比较。在干燥条件下，具有与皮肤相似的表面结构的聚氨酯涂层聚酰胺羊毛与人的皮肤具有最好的一致性。该材料的摩擦系数随参考纺织品含水率的增加而增大。一个逼真的皮肤模型与客观的摩擦测试方法相结合，将对纺织行业非常有用，并允许有效地开发具有改进的和皮肤适应的表面和摩擦性能的新纺织品，用于运动和医疗应用。(C)2007 Elsevier B.V.保留所有权利。
The friction of untreated human skin (finger) against a reference textile was investigated with 12 subjects using a force plate. In touch experiments, in which the subjects assessed the surface roughness of the textile at normal loads of 1.5 +/- 0.7 N, the average friction coefficients ranged from 0.27 to 0.71 and varied among individuals due to different states of skin hydration. In experiments, in which the subjects varied the normal load, the friction coefficients were in the same range and showed practically no load dependence, indicating that both adhesion and hysteresis are contributing to the friction behaviour. The results for human skin were compared with apparative friction measurements using different silicone and polyurethane materials as mechanical skin equivalents. A polyurethane coated polyamide fleece with a surface structure similar to that of skin showed the best correspondence with human skin under dry conditions. The friction coefficients of this material increased with the moisture content of the reference textile. A realistic skin model in combination with an objective friction test method would be very useful for the textile industry and allow the efficient development of new textiles with improved and skin-adapted surface and frictional properties for sport and medical applications. (C) 2007 Elsevier B.V. All rights reserved.