2025 AIChE Annual Meeting

(170b) Advancing Specialized Manufacturing through Large-Scale Additive Manufacturing with Cellulose-Based Composites

Large-Scale Additive Manufacturing (LSAM) is enabling a shift toward rapid, energy-efficient production of large, complex parts using sustainable materials. By integrating cellulose-based bio-composites into LSAM, we are unlocking new pathways to create domestic supply chain for industrial sectors such as housing and marine manufacturing. Recent innovations in cellulose fiber formation and advanced drying technologies have dramatically improved the scalability and cost-efficiency of cellulose production. These advancements make it possible to generate high-volume, structurally viable cellulose materials suitable for composite feedstocks.

At ORNL and UMaine, we have demonstrated LSAM's potential not only in direct manufacturing, such as modular housing panels, but also in re-manufacturing and recycling of end-of-life composite components. This dual-use approach supports a circular economy model and reduces landfill waste. By combining advanced bio-based materials with scalable digital manufacturing processes, LSAM offers a compelling solution for achieving high-performance, low-carbon production systems across multiple industries.