鞋底止滑性能的研究进展

论述了鞋底止滑性能的研究目的和意义以及国内外在鞋底止滑性能方面的研究现状 ,在此基础上对其发展趋势作了预测 ,有助于进一步研究鞋底的止滑性能和提高鞋子的防滑性能。     

Predicting slips based on the STM 603 whole-footwear tribometer under different coefficient of friction testing conditions

Assessing footwear slip-resistance is critical to preventing slip and fall accidents. The STM 603 (SATRA Technology) is commonly used to assess footwear friction but its ability to predict human slips while walking is unclear. This study assessed this apparatus’ ability to predict slips across footwear designs and to determine if modifying the test parameters alters predictions. The available coefficient of friction (ACOF) was measured with the device for nine different footwear designs using 12 testing conditions with varying vertical force, speed and shoe angle. The occurrence of slipping and the required coefficient of friction was quantified from human gait data including 124 exposures to liquid contaminants. ACOF values varied across the test conditions leading to different slip prediction models. Generally, a steeper shoe angle (13°) and higher vertical forces (400 or 500?N) modestly improved predictions of slipping. This study can potentially guide improvements in predictive test conditions for this device.

Practitioner Summary: Frictional measures by the STM603 (SATRA Technology) were able to predict human slips under liquid contaminant conditions. Test parameters did have an influence on the measurements. An increased shoe-floor testing angle resulted in better slip predictions than test methods specified in the ASTM F2913 standard.     

温度和材料对鞋底止滑性能的影响

根据摩擦学原理和高分子材料的摩擦学理论,结合几种常用鞋底材料的结构特征,分别对四种常用材料(橡胶,EVA,PU,TPR)的无花纹鞋底在不同温度下的干燥的玻璃路面上进行了摩擦实验,测得了鞋底在玻璃路面上的摩擦系数,利用这些摩擦系数值来表征鞋底止滑性能的高低。实验结果显示:温度、材料以及温度与材料的交互作用对鞋底止滑性能的影响都是高度显著的;其中橡胶鞋底的止滑性能是四种鞋底中最好的,TPR鞋底在冰路面上也具有良好的止滑性能,因此,橡胶和TPR可以用作寒冷地区冰雪路面上的防滑鞋的鞋底材料。