Abstract This work is mainly focused on developing a self-heating composite fabric using the PVF and PPP. Prepare a new functional composite self-heating fabric through core spun method based on the synergy of hygroscopic heating principle and the characteristics of piezoelectricity of tourmaline. PVF with good hygroscopicity and PPP with piezoelectric effect were blended to produce fabrics with continuous heating function. Spandex fiber filament was set as a core to introduce elasticity, and the PVF and PPP were set as a sheath. In order to test the heating insulation properties of the fabric better, an athlete volunteer to be test foe the self-heating properties of fabrics during exercise. The heart rate was used to characterize the athlete’s exercise intensity. The fever effect was not particularly obvious when the exercise intensity was low because the human body sweats less, but with the increase of exercise intensity, the heating effect increases obviously. And when the exercise intensity continues to increase, the body releases a lot of heat, which made the heat released by the fabric becomes less obvious. Therefore, the functional composite self-heating fabric is promising materials in sports injury protection of athletes applications.

中文翻译：

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自热复合面料及其在运动员运动损伤防护中的应用

摘要 这项工作的重点是开发一种使用 PVF 和 PPP 的自热复合织物。基于吸湿加热原理与电气石压电特性的协同作用，采用芯纺法制备新型功能性复合自发热织物。将具有良好吸湿性的PVF和具有压电效应的PPP混合，制成具有连续加热功能的织物。以氨纶长丝为芯以引入弹性，以PVF和PPP为鞘。为了更好地测试织物的隔热性能，一名运动员自愿测试织物在运动过程中的自热性能。心率用于表征运动员的运动强度。运动强度低时发热效果不是特别明显，因为人体出汗少，但随着运动强度的增加，发热效果明显增强。而当运动强度继续加大时，身体会释放出大量的热量，使得面料释放的热量变得不那么明显。因此，功能性复合自热面料是运动员运动损伤防护应用的有前景的材料。