PET Modular Interiors: Revolutionizing Deep Space Habitability Through Recycled Material Systems

Traditional spacecraft interiors are characterized by monolithic construction, limited reconfigurability, and psychologically
sterile environments that negatively impact crew well-being during long-duration missions. This paper presents a novel
approach to habitat interiors utilizing recycled polyethylene terephthalate (PET) in modular panel systems that transform
waste material into high-value interior components. The system achieves 40% mass reduction versus conventional
aluminum interiors, enables rapid reconfiguration without specialized tools, and provides demonstrable psychological
benefits through personalization and aesthetic control. Technical validation confirms compliance with NASA STD 6001
requirements while offering an 85% cost reduction through circular economy principles. Implementation pathways
demonstrate TRL advancement to 6 within 36 months via ISS demonstration, positioning PET modular interiors as an
enabling technology for sustainable deep space exploration.