Desenvolvimento de placa de circuito impresso biodegradável com laminado termoplástico reciclado utilizado manufatura aditiva

Abstract

The printed circuit board (PCB) manufacturing and recycling process contains toxic metals, solvents, acids, dioxins and photolithography chemicals. Therefore, we are looking for PCB manufacturing methods with as few chemicals as possible and non-toxic base materials. The material that makes up the base is called laminate and the connections between the components occur through busbars (conductive paths). The possibility of replacing the laminate and busbar materials with thermoplastic polyethylene terephthalate (PET) and thermoplastic composites and carbon-based materials, respectively, was analyzed. The additive manufacturing (AM) process was used to manufacture the PCB using PET and composite filament. The AM variant chosen was FDM (Fused Deposition Modelling), which allows the production of solid objects in thermoplastic materials. The objective of the research was to study the applicability of recycled materials from commonly used FDM products for the manufacture of printed circuit boards (PCB), whosesubstrate is PET (Polyethylene Terephthalate) from bottle packaging and the fiberglass composite filament busbar carbon.