Microfluidic Fabrication of Highly Stretchable Soft Strain Sensor Based on Natural Rubber
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초록
내용
Recently, wearable strain sensors have gained considerable attention due to its promising applications in human motion detection, soft robotics and smart clothing. In this study, we prepared a mechanically tough and stretchable elastomer conducting microfiber by combining latex and conducting fillers by using microfluidic devices comprising co-axial aligned micro capillaries. The elastomer microfiber demonstrates a highly stretchable with wide sensing range and high linearity. The microfiber also exhibits good sensitivity (gauge factor (GF) = 3.85) and fast resistance change based on stretch through the connection/partial disconnection of conductive network. The developed elastomer microfibers are promising for health-care monitoring by detecting human motions like bending of joint, walking and running.