Solvent-Rich Pre-Coagulation Bath for Tunable Liquid-State Fusion Enables Robust Two-Step Polymer Embedded Printing.

ABSTRACT: Effective interlayer fusion is a critical step enabling a 3D printing process. For engineering polymer printing, interlayer fusion is usually either heat-enabled or binder-based, which may introduce thermal residual stress, warpage, and undesirable impurities. To overcome such challenges, a two-step immersion phase separation (IPS)-based room-temperature polymer fusion and solidification approach for self-supported engineering polymer printing, termed IPS-embedded 3D printing (IPS-E3DP) is introduced. IPS-E3DP is implemented by first depositing polymer inks in a solvent-rich yield-stress pre-coagulation support bath to have an intermediate green part and then immersing the intermediate green part in a non-solvent coagulation bath for complete solidification. During the first critical step,

SUBMITTER: Song K 

PROVIDER: S-EPMC12561439 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature