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

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