Innovation of Pencil Lead Drawn Paper Sensors (PLDPS) Using Electrical Resistance (ER) Measurement: I. Optimal Conditions of Interfacial, Mechanical, and Sensing Properties

다국어 초록 (Multilingual Abstract)

A study was performed to utilize Pencil Lead Drawn Paper Sensor (PLDPS) as a strain and damage sensor bydrawing multiply Pencil Sensors on two paper types. To evaluate the optimal paper as a PLDPS substrate of two type papers,i.e., plain and Han papers were used. The stability and uniformity of the mechanical properties, were compared for the papertypes. Variability of electrical resistivity (ER) was also determined using four different types of pencil lead to make thePLDPS. In the evaluation of the properties of the PLDPS, for the different pencil lead types, the pencil lead weight wasdetermined by drawing multiple lines and the ER of neat pencil leads and PLDPS compared. Interfacial properties of thePLDPS with different pencil lead types were measured by a spreading test, which provides information on wetting andpermeability properties, using double distilled water. The sensitivity and uniformity of the pencil lead paper sensors made offour different pencil leads were compared in tensile loading. Plain paper was more suitable than Han Paper for use as thesubstrate of PLDPS. In addition, compared to other pencil leads, 6B, which exhibited low sensitivity but high uniformity, wasdetermined to be the most suitable pencil lead.

참고문헌 (Reference)

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