Developing Hydrophilic Teflon via Cold Spray
摘要
Cold gas sprayCold gas spray is an emerging material deposition technique with promising applications across diverse industries, including aerospace, automotive, and electronics. Telecommunications are essential for modern society, driving the demand for faster communication, which is often limited by the lack of thermally stable substrates. Polytetrafluoroethylene (PTFEPTFE (Teflon™) or Teflon) stands out as a promising substrate for flexible electronics due to its exceptional thermal resistance, chemical stability, and electrical insulation properties. However, the hydrophobicHydrophobic and low surface energy nature of PTFEPTFE (Teflon™) is a significant barrier to using it as a substrate for electronics, as it inhibits effective adhesion of coatings. Our research addresses this challenge by employing cold spray technology to deposit a ceramic layer onto PTFEPTFE (Teflon™), promoting strong adhesion of conductive coatings. We assessed the bonding method, ceramic coating quality, surface roughnessSurface roughness, thickness, and successfully printed an electronic circuit on the modified PTFEPTFE (Teflon™), testing properties like resistance, conductivity, and adhesion. This advancement represents a crucial step forward in utilizing PTFEPTFE (Teflon™) as a substrate for electronic circuits, potentially benefiting multiple industries.