基于PEDOT:PSS/PDMS柔性材料的快速响应人体温度传感器的设计

  温度是人类活动检测、危机确认和异常身体状况诊断中不可或缺的基本参数之一，作为反应产热和散热平衡的一个指数，温度直接影响理疗过程中的反应及反应速率。因此，精确检测和维持平衡的体温对于人的健康和疾病康复而言都是至关重要的。柔性温度传感器较好的柔韧性、较强的灵活性以及对人体皮肤无刺激性等特点，使得其可以被广泛地应用到体温检测中去。

  本文所制备的柔性温度传感器是以聚二甲基硅氧烷（Polydimethylsiloxane, PDMS）为基底材料、聚（3,4-亚乙二氧基噻吩）-聚（苯乙烯磺酸）（Poly（3,4-ethylenedioxythiophene）-poly（styrenesulfonate）, PEDOT:PSS）、石墨烯、聚乙烯醇（Polyvinyl alcohol, PVA）、乙二醇和曲拉通为热敏材料的，主要采用旋涂的制备工艺，将热敏材料直接旋涂在基底材料上制备而成的。通过绘制的电阻温度系数（Temperature coefficient of resistance, TCR）图形和线性拟合曲线图，本文发现所制备的柔性温度传感器具有-0.33% ℃^-1的灵敏度和0.9976的线性度；通过让36.5 ℃的热源远离和靠近柔性温度传感器，发现该传感器具有1.3 s的响应时间、5.9 s的恢复时间；通过绘制温度和电阻相对变化率的图形，发现该传感器具有至少为0.1 ℃的分辨率，通过让热源循环远离和靠近柔性温度传感器30次，发现每次循环后柔性温度传感器的电阻值都能回到初始值，该柔性温度传感器具有较好的重复性。由此可知本文所制备的柔性温度传感器具有较好的线性度、较快的响应速度、较高的分辨率和较好的重复性。

  为了验证本文所制备的柔性温度传感器有能够在实际应用使用的潜力，本文将柔性温度传感器用于测量人体不同部位温度、用于运动中的人体温度检测、用于细微温度变化的识别、用于不同水温的测量、用于长时间的温度检测、对人体皮肤无刺激的测试。通过这些应用测试，本文发现所制备的柔性温度传感器有较高的准确性、可以用于长时间的温度检测、对皮肤无刺激等，展示了其在体温检测和监测、可穿戴设备、医疗护理等方面具有较大的潜力。

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