Low-Cost Inkjet-Printed Temperature Sensors on Paper Substrate for the Integration into Natural Fiber-Reinforced Lightweight Components

• DOI: 10.3390/chemosensors9050095
• Publication Date: 2021-04-27T10:19:11Z
• Authors: Johanna Zikulnig; Mohammed Khalifa; Lukas Rauter; Herfried Lammer; Jürgen Kosel
• Keywords: Structural Health Monitoring

In a unique approach to develop “green” solution for in-situ monitoring, low-cost inkjet-printed temperature sensors on paper substrate were fully integrated into natural fiber-reinforced lightweight components which structural health monitoring is becoming increasingly important. The results showed that the remained functional after vacuum infusion process; furthermore, integration of improved mechanical integrity and stability parts, as demonstrated by tensile testing. To verify qualification printed target application, samples exposed varying humidity conditions inside climate chamber. linear dependence in range interest (−20 60 °C) with TCR ranging from 1.576 × 10−3 K−1 1.713 K−1. Furthermore, tests humid environments indicated used paper-based could be made almost insensitive changes ambient embedding them materials. This study demonstrates feasibility integrating components, paves way towards other highly relevant sensing devices, such strain sensors, smart, sustainable, environmentally compatible composite