| Title: |
New approach for 3D printing of cellulose solutions and making aerogels from them |
| Authors: |
Négrier, Marion; Sauceau, Martial; Sescousse, Romain; Budtova, Tatiana |
| Contributors: |
Centre de Mise en Forme des Matériaux (CEMEF); Mines Paris - PSL (École nationale supérieure des mines de Paris); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS); Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement (RAPSODEE); Centre National de la Recherche Scientifique (CNRS)-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi); Institut Mines-Télécom Paris (IMT)-Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Institut Mines-Télécom Paris (IMT)-Communauté d'universités et établissements de Toulouse (Comue de Toulouse); Carnot MINES |
| Source: |
ACS Spring 2025 - American Chemical Society Spring 2025 ; https://hal.science/hal-05428060 ; ACS Spring 2025 - American Chemical Society Spring 2025, Mar 2025, San-Diego CA, United States |
| Publisher Information: |
CCSD |
| Publication Year: |
2025 |
| Collection: |
HAL de Mines Albi (École nationale supérieure des mines d'Albi-Carmaux) |
| Subject Terms: |
[SPI]Engineering Sciences [physics] |
| Subject Geographic: |
San-Diego CA; United States |
| Description: |
International audience ; Polysaccharide-based 3D printed objects are promising materials with customized shapes for life science applications. A classical approach is to use gelation to stabilize the shape of printed solution. To vary solution rheological properties, nanocellulose is often used. In this work, we developed a new approach allowing printing dissolved cellulose with no crosslinking and no additives, only by varying solution rheological properties and adjusting cellulose solubility. These printed cellulose objects were then transformed into aerogels, lightweight and nanostructured materials. In addition, we demonstrated that this approach can be applied not only to neat reference cellulose, but also to dissolved cellulose textile.Microcrystalline cellulose and viscose textile were dissolved in ionic liquid. By adjusting cellulose solubility, solution viscoelastic properties were varied with the goal to obtain yield-stress fluid. The printed objects were of various shapes, composed of many layers and self-standing. The solvent was then washed out by a non-solvent, and cellulose was dried with supercritical CO2. 3D printed cellulose aerogels obtained from MCC and viscose possess porosity higher than 90%, a specific surface area around 250 m²/g and a low density (< 0.2 g/cm3).The developed approach opens new easy ways of printing cellulose solutions and valorizing waste textile.AcknowledgmentsWe are grateful to Institut Carnot MINES and PSL for the financial support of this work. We thank Julien Jaxel (PERSEE, MINES Paris) for supercritical drying. |
| Document Type: |
conference object |
| Language: |
English |
| Availability: |
https://hal.science/hal-05428060 |
| Accession Number: |
edsbas.83FCAA5F |
| Database: |
BASE |