Fully Integrated Flexible Dielectric Monitoring Sensor System for Real-Time In Situ Prediction of the Degree of Cure and Glass Transition Temperature of an Epoxy Resin

摘要: Flexible dielectric sensors received significant interest for real-time in situ cure monitoring of polymeric composites over the past decade. Currently, state-of-the-art mainly focus on detecting distinct stages composite curing process. While low-cost and quantitative thermal, mechanical, chemical properties materials during is great interest, to date, such a sensor system has not been realized because existing devices excessively depend external instrumentations, combined with lack an embedded reliable data processing module. Here, fully integrated (DMS) incorporating temperature developed, capable temperature, degree cure, glass transition ( $T_{g}$ ) composites. An independent characterization kinetics was performed using differential scanning calorimetry Raman spectroscopy. These enabled associating main physical transformations particular features observed measurements. We demonstrate accurate estimation epoxy resin. The proposed shows potential new generation intelligent manufacturing technology materials.