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광경화성 수지와 다중벽 탄소나노튜브 혼합물을 이용한 신축성 센서 소재
우상구(S. G. Woo),Morteza Vatani,이인환(I. H. Lee),Jae Won Choi,김호찬(H. C. Kim),조해용(H. Y. Cho) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
Recently, advancement of science enable robots to introduce at the many fields, along with a variety of sensors. The use of the tactile sensor has increasingly interest to the robots. The tactile sensor help robots to operate safely and sensitively by mechanical contact from external environment. In this regards, many kinds of tactile sensors were developed. However, in these sensors, electrode was used as a detector that leads to complex fabrication process. Furthermore, the use of electrode impede manufacturing of large scale tactile sensor. Moreover, to improve the performance of the sensor, it should be atteched on the curved surface. This study is on the fabrication of flexible tactile sensor using a photocureable resin and MWCNTs, which is possible to make large scale tactile sensor using direct writing as simple fabrication process. The MWCNTs are used as a conductive material, because it has excellent piezo resistance effect. The MWCNTs are mixed with photocureable polymer by ultrasonic dispersion method. The photocureable polymer has the flexiblity after curing process by ultraviolet rays. Therefore, the mixture has similar chracteristics with photocureable polymer as well as piezo resistance effect. To use the MWCNTs mixture at the flexible tactile sensor as a wire, it is dispensed by direct writing. This paper suggests conductive material and fabrication process for flexible tactile sensor.