Fabrication of a Cost-Effective Piezoresistive Pressure Sensor Based on PVC/Reduced Graphene Oxide (rGO) Composite
سال انتشار: 1401
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 324
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شناسه ملی سند علمی:
ICCNRT05_045
تاریخ نمایه سازی: 8 آذر 1401
چکیده مقاله:
In this research, a cost-effective piezoresistive sensor based on polyvinyl chloride/reduced graphene oxide (PVC/rGO) was fabricated and its performance was investigated. Composites were prepared by adding ۰.۱-۳۰ wt.% of rGO to the PVC matrix followed by solution casting. The plot of electrical conduction-concentration was constructed to obtain the percolation threshold concentration. It was found that the percolation threshold of reduced graphene oxide leading to a continuous stable electrical conductivity in PVC matrix is about۲۵% beyond which electrical resistance was reduced drastically from some ۸۰۰GΩ to lower than۱۰۰KΩ range The relative change in electrical resistance of prepared polymer parts as a result of pressure (stress), strain, torsion and low strength impact was studied. The results showed that the fabricated composite can be used for sensing and/or monitoring and measurement of any mechanical displacement with high sensitivity, promising reproducibility and satisfactory durability.
کلیدواژه ها:
نویسندگان
Samira Dabbagh
Research Laboratory for Electrochemical Instrumentation and Energy Systems, Department of PhysicalChemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
Mina Namvari
Sabanci University SUNUM Nanotechnology Research Centre, TR-۳۴۹۵۶ , Istanbul, Turkey
Iraj Ahadzadeh
Research Laboratory for Electrochemical Instrumentation and Energy Systems, Department of PhysicalChemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran