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首页> 外文期刊>RSC Advances >Poly(N-isopropylacrylamide) microgel-based thin film actuators for humidity sensing
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Poly(N-isopropylacrylamide) microgel-based thin film actuators for humidity sensing

机译：聚（N-异丙基丙烯酰胺）用于湿度传感的微凝胶基薄膜致动器

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In this submission we fabricated a humidity-responsive polymer-based actuator by layering negatively charged poly( N -isopropylacrylamide)- co -acrylic acid microgels and positively charged poly(diallyldimethyl ammonium chloride) on top of a flexible plastic substrate. We show that the extent of the actuation (bending) was dependent on the atmospheric humidity. This property was used to detect atmospheric humidity by hanging weights from the actuator, which were rested on the pan of a top loading balance. This was done in such a way that the amount of the mass resting on the balance depended on the extent of actuator bending, which could then be related to humidity. We found the mass read by the balance to be linearly dependent on the atmospheric humidity in the range of 0–50% humidity, and the devices could be used to detect 0.02% humidity changes. These experiments show that the actuation of the devices can be used for sensing applications, in this case humidity, but will be used in the future to detect various atmospheric gases and other vapors.
机译：在该提交中，我们通过在柔性塑料基板的顶部层叠带负电荷的聚（N-异丙基丙烯酰胺） - 共丙烯酸微凝胶和带正电的聚（二烯丙基甲基氯化铵）来制造湿度响应的聚合物基致动器。我们表明，致动（弯曲）的程度依赖于大气湿度。该属性用于通过悬挂致动器的砝码来检测大气湿度，这些性能在顶部装载平衡的平底锅上搁置。这是以这样的方式完成的，即围绕平衡的质量的量取决于致动器弯曲的程度，然后可以与湿度有关。我们发现余量读取的质量依赖于0-50％湿度范围内的大气湿度，并且可以使用该装置来检测0.02％的湿度变化。这些实验表明，在这种情况下，这些实验可用于感测应用，但将在将来使用，以检测各种大气气体和其他蒸气。

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