Static electricity accumulated on fabrics often causes discharged discomfort, fire, explosion, and cardiovascular diseases. Meanwhile, the electricity can be harvested and used for self-powered wearable devices. Therefore, it is essential to regulate fabric triboelectricity through studying the relationship between friction coefficients and triboelectric charges. In this paper, a reciprocating tribometer coupled with triboelectric testing instruments is designed to collect tribological and triboelectric properties for laterally sliding fabric based triboelectric nanogenerators (F-TENGs). In this case, the regulation factors involve motion conditions (including load, frequency, friction angle, etc.), surface components and environments. The results show that faster sliding speed and lower humidity produce higher triboelectric outputs of F-TENGs. Especially, amino groups modified silk shows an extremely strong electron-donating ability and achieves a high triboelectric current of 382.2 nA when paired with polyimide, which is enhanced by 1.67 times compared with silk. Most importantly, the friction coefficient values of F-TENGs show almost the same trend as the triboelectric outputs. Based on this, a sensing system for monitoring comfort level of fabrics is successfully designed through rubbing tested fabrics and observing indicator lamps. This work proposes a tribological approach with valuable insights of the underlying mechanism of triboelectric charging and extended applications.

中文翻译：

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基于织物摩擦起电和摩擦学行为的服装舒适感传感系统

织物上积累的静电常常会导致放电不适、火灾、爆炸和心血管疾病。同时，电力可以被收集并用于自供电的可穿戴设备。因此，有必要通过研究摩擦系数与摩擦电荷之间的关系来调节织物的摩擦带电。在本文中，设计了一种与摩擦起电测试仪器相结合的往复式摩擦磨损仪，用于收集基于横向滑动织物的摩擦起电纳米发电机（F-TENG）的摩擦学和摩擦起电特性。在这种情况下，调节因素涉及运动条件（包括载荷、频率、摩擦角等）、表面成分和环境。结果表明，更快的滑动速度和更低的湿度会产生更高的 F-TENG 摩擦电输出。尤其是氨基改性蚕丝表现出极强的给电子能力，与聚酰亚胺配对时可达到382.2nA的高摩擦电流，比蚕丝提高了1.67倍。最重要的是，F-TENG 的摩擦系数值显示出与摩擦电输出几乎相同的趋势。在此基础上，成功设计了一种通过摩擦测试织物和观察指示灯来监测织物舒适度的传感系统。这项工作提出了一种摩擦学方法，对摩擦起电的基本机制和扩展应用具有宝贵的见解。