The tribological characteristics of cotton fibers play an important role in engineering and materials science, and real contact behavior is a significant aspect in the friction behavior of cotton fibers. In this study, the tribological characteristics of cotton fibers and their relationship with the real contact behavior are investigated through reciprocating linear tribotesting and real contact analysis. Results show that the friction coefficient decreases with a general increase in load or velocity, and the load and velocity exhibit a co-influence on the friction coefficient. The dynamic change in the real contact area is recorded clearly during the experiments and corresponds to the fluctuations observed in the friction coefficient. Moreover, the friction coefficient is positively correlated with the real contact area based on a quantitative analysis of the evolution of friction behavior and the real contact area at different loads and velocities. This correlation is evident at low velocities and medium load.

棉纤维的摩擦学特性在工程和材料科学中起着重要作用，而实际的接触行为是棉纤维摩擦行为的重要方面。在这项研究中，通过往复线性摩擦试验和真实接触分析，研究了棉纤维的摩擦学特性及其与真实接触行为的关系。结果表明，摩擦系数随着载荷或速度的总体增加而减小，并且载荷和速度对摩擦系数具有共同影响。实验过程中清楚地记录了实际接触区域的动态变化，并与观察到的摩擦系数波动相对应。而且，通过对不同载荷和速度下的摩擦行为和实际接触面积的演变进行定量分析，得出摩擦系数与实际接触面积呈正相关。这种相关性在低速和中等负载下很明显。