Additive manufacturing of cellulose-based photopolymerizable resin with high strength and shape-memory

As one of the core advanced manufacturing technologies, additive manufacturing is of high application value in the aerospace, biomedical, and industrial component manufacturing fields. Nevertheless, current additive manufacturing materials (e.g., petroleum-based resins) face limitations such as poor stability, limited shape recovery, and insufficient mechanical properties, which restrict sustainable manufacturing progress. Inspired by the stress-dissipation mechanism in plant cell walls, we develop a cellulose-based photopolymerizable resin that delivers exceptional stiffness-deformability synergy and spatiotemporally shape memory capability. These structures integrate excellent mechanical strength and rapid recovery performance after deformation. The additive manufacturing cellulose-based photopolymerizable resin material exhibits a synergistic stiffness-deformability profile, achieving a compressive strength of 115.42 MPa and stiffness of 1404.16 MPa. These characteristics lay the foundation for specialized defense components, energy absorption systems, and spatiotemporal memory materials. Current additive manufacturing materials often suffer from poor stability, limited shape recovery, and insufficient mechanical properties. Here the authors develop a photopolymerizable resin with stiffness-deformability synergy and spatiotemporal shape memory capabilities.