Flexible Electrodes Printed on Porous Graphene-Skinned Quartz Fiber Fabric and Its Reliable Electrical Connection for Electrothermal Deicing

A flexible electrode is a key component of electrothermal film for deicing. Here, silver electrodes were fabricated via screen printing 55 wt % silver content polypolyphenoxy (PKHH) resin-based conductive paste on the porous graphene-skinned quartz fiber fabric without a precoating layer. PKHH is favorable for excellent performance of electrodes, such as low resistivity (1.32 × 10–5 Ω·cm), high adhesion (5B), and high tolerance for bending deformation. Fluorine-modified epoxy resin was introduced to electrically conductive adhesive (ECA) to improve the hydrophobicity and avoid the corrosion/oxidation of Ag during the deicing process, and ECA showed low resistivity (2.4 × 10–4 Ω·cm) and stable mechanical connection (15 MPa). The deicing feasibility of film was demonstrated.