织物表面摩擦特性测试装置及试验研究

A Measurement Apparatus and Evaluation for Surface Friction Properties of Fabrics

为了评价织物表面的摩擦特性,表征织物和皮肤接触过程中摩擦力的动态变化信息,研制了一种能测试织物表面动态摩擦特性的机械测试装置,该装置集成了机械装置、传感器及控制系统,能一次性测试织物的静、动摩擦系数.基于测试过程中采集的原始数据,定义了摩擦功、静摩擦系数及动摩擦系数3个指标来评价织物表面的摩擦特性.试验采用12种典型的织物样本,对织物的表面摩擦特性进行了客观测试及主观评价,并在日本Kawabata KES-FB4系统上进行了对比试验.结果表明:针对12种典型的织物样本,3个评价指标均存在着显著的差异,牛仔布具有最大的静摩擦系数,经编网眼针织布具有最小的静摩擦系数,与常理相符.客观测试得到的动态指标摩擦功和主观评价的结果具有一致性.本测试装置得到的动态摩擦系数和KES-FB4测试得到的平均摩擦系数也具有一致性.该测试装置可以为相关领域的研究提供一种新的测试手段.

A measurement apparatus and a test method were proposed to evaluate the surface friction properties of fabrics. The apparatus was capable of measuring the dynamic friction performance of fabrics including the dynamic coefficient of friction and relative friction work during the dynamic friction contacts in one step of measurement based on the mechanical device, sensors and control system. Three indicators were defined to characterize the friction performance of the fabrics. Twelve types of fabrics made from different textile materials were objectively and subjectively measured and the experiments for the correlation with Kawabata KES-FB4 system were conducted. The test results show that there were significant differences in the friction performance of all fabrics. The denim had the maximum static friction coefficient and the mesh knitted fabric had the minimum static friction coefficient. The correlation analysis reveals that objective measuring results of friction work were consistent with the subjective evaluations, and the test results of the dynamic friction coefficient were also consistent with the mean friction coefficient results of the KES-FB4 measurements.