Circular Economy of Silicon Based Materials

C. Sims
Bowling Green State University, Ohio, United States

Poster stand number: W143

Keywords: Green Chemistry, Silicone Upcycling, Environmental Coatings, Rapid Cure, Hydrophobic

Two patent pending innovative technologies focusing on silicon-based materials. First, a method was developed for the upcycling of silicone polymer waste into monomeric components. Utilizing ambient catalytic methods, silicone polymers are rapidly broken down into cyclic siloxanes which are then repolymerized to new materials. This extension to the life cycle of silicon materials offers an alternative method to reduce current dependence on foreign silicon materials manufacturing and high energy usage of initial polymer production. Second, a tri-cure coating system was developed for the protection of stone, glass, metal, wood, and other building/vehicular materials from environmental degradation while offering graffiti resistance on smooth surfaces. This technology utilizes three distinct curing methodologies to undergo a rapid, photo-initiated cure upon exposure to UV light which is quickly followed by a secondary amine-epoxy surface adhesion and sol-gel alkoxysilane crosslinking. The design of the system allows it to be stored over 1-year as a one-pot multi-application method coating. Surfaces are enhanced with hydrophobicity, oxidative and flame resistance, anti-fouling capabilities, and chemical, photo, and thermal stability. The nature of this system allows for modifiability including the addition of conductive metals and chemically active dyes with minimal alteration to its refractive index and general performance.