{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Reyes G"],"funding":["European Research Council"],"pagination":["2908-2916"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9003243"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["4(4)"],"pubmed_abstract":["We use dry-jet wet spinning in a coaxial configuration by extruding an aqueous colloidal suspension of oxidized nanocellulose (hydrogel shell) combined with airflow in the core. The coagulation of the hydrogel in a water bath results in hollow filaments (HF) that are drawn continuously at relatively high rates. Small-angle and wide-angle X-ray scattering (SAXS/WAXS) reveals the orientation and order of the cellulose sheath, depending on the applied shear flow and drying method (free-drying and drying under tension). The obtained dry HF show Young's modulus and tensile strength of up to 9 GPa and 66 MPa, respectively. Two types of phase-change materials (PCM), polyethylene glycol (PEG) and paraffin (PA), are used as infills to enable filaments for energy regulation. An increased strain (9%) is observed in the PCM-filled filaments (HF-PEG and HF-PA). The filaments display similar thermal behavior (dynamic scanning calorimetry) compared to the neat infill, PEG, or paraffin, reaching a maximum latent heat capacity of 170 J·g<sup>-1</sup> (48-55 °C) and 169 J·g<sup>-1</sup> (52-54 °C), respectively. Overall, this study demonstrates the facile and scalable production of two-component core-shell filaments that combine structural integrity, heat storage, and thermoregulation properties."],"journal":["ACS applied polymer materials"],"pubmed_title":["Hollow Filaments Synthesized by Dry-Jet Wet Spinning of Cellulose Nanofibrils: Structural Properties and Thermoregulation with Phase-Change Infills."],"pmcid":["PMC9003243"],"funding_grant_id":["788489"],"pubmed_authors":["Yazdani MR","Reyes G","Ajdary R","Rojas OJ"],"additional_accession":[]},"is_claimable":false,"name":"Hollow Filaments Synthesized by Dry-Jet Wet Spinning of Cellulose Nanofibrils: Structural Properties and Thermoregulation with Phase-Change Infills.","description":"We use dry-jet wet spinning in a coaxial configuration by extruding an aqueous colloidal suspension of oxidized nanocellulose (hydrogel shell) combined with airflow in the core. The coagulation of the hydrogel in a water bath results in hollow filaments (HF) that are drawn continuously at relatively high rates. Small-angle and wide-angle X-ray scattering (SAXS/WAXS) reveals the orientation and order of the cellulose sheath, depending on the applied shear flow and drying method (free-drying and drying under tension). The obtained dry HF show Young's modulus and tensile strength of up to 9 GPa and 66 MPa, respectively. Two types of phase-change materials (PCM), polyethylene glycol (PEG) and paraffin (PA), are used as infills to enable filaments for energy regulation. An increased strain (9%) is observed in the PCM-filled filaments (HF-PEG and HF-PA). The filaments display similar thermal behavior (dynamic scanning calorimetry) compared to the neat infill, PEG, or paraffin, reaching a maximum latent heat capacity of 170 J·g<sup>-1</sup> (48-55 °C) and 169 J·g<sup>-1</sup> (52-54 °C), respectively. Overall, this study demonstrates the facile and scalable production of two-component core-shell filaments that combine structural integrity, heat storage, and thermoregulation properties.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Apr","modification":"2025-04-22T19:47:17.897Z","creation":"2025-04-06T02:53:19.425Z"},"accession":"S-EPMC9003243","cross_references":{"pubmed":["35425902"],"doi":["10.1021/acsapm.2c00177"]}}