3D printing has been recently recognized as one of the most promising technologies due to the multiple options to fabricate cost-effective and customizable objects. However, the necessity to substitute fossil fuels as raw materials is increasing the research on bio-based inks with recyclable and eco-friendly properties. In this work, we formulated inks for the 3D printing of ionogels and hydrogels with bleached kraft pulp dissolved in [Emim][DMP] at different concentrations (1-4 wt%). We explored each ink's rheological properties and printability and compared the printability parameters with a commercial ink. The rheological results showed that the 3 % and 4 % cellulose-ionic liquid inks exhibited the best properties. Both had values of damping factor between 0.4 and 0.7 and values of yield stress between 1900 and 2500 Pa. Analyzing the printability, the 4 wt% ink was selected as the most promising because the printed ionogels and the hydrogels had the best print resolution and fidelity, similar to the reference ink. After printing, ionogels and hydrogels had values of the elastic modulus (G') between 10 and 10 Pa, and the ionogels are recyclables. Altogether, these 3D printed cellulose ionogels and hydrogels may have an opportunity in the electrochemical and medical fields, respectively.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.carbpol.2023.120897 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A flexible, water anchoring, and colorimetric ionogel for sweat monitoring.
Biomater Sci
December 2024
Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.
As water-saturated polymer networks, the easy water loss of hydrogels directly affects their end-use applications. Minimizing the ratio of free water and increasing the ratio of bound water in the gel system has become key to extending the service life. In this work, an ionogel is prepared that effectively regulates the proportion of free water and bound water through the formation of wrinkle angles by the hydrophilic and hydrophobic chains in the gel system and the non-volatile nature of the ionic liquid.
View Article and Find Full Text PDFNatural cellulose reinforced multifunctional eutectogels for wearable sensors and epidermal electrodes.
Carbohydr Polym
January 2025
Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, Hunan, PR China. Electronic address:
Article Synopsis
- Wearable electronics are revolutionizing health monitoring and clinical care, but existing materials like hydrogels and ionogels have limitations, such as weight issues and toxicity.
- The study introduces a new multifunctional eutectogel that combines the properties of sensors and electrodes, significantly improving its strength, conductivity, and temperature resilience through the addition of cotton cellulose nanofibers.
- This eutectogel demonstrates self-healing capabilities, strong adhesion, antibacterial properties, and is sensitive enough to detect human activities and control devices like a small car, making it promising for flexible wearable electronics.
Recent Advancements in Gel Polymer Electrolytes for Flexible Energy Storage Applications.
Polymers (Basel)
September 2024
Laboratory of Physical Chemistry of Polymers and Interfaces (LPPI), CY Cergy Paris Université, F-95000 Cergy, France.
Since the last decade, the need for deformable electronics exponentially increased, requiring adaptive energy storage systems, especially batteries and supercapacitors. Thus, the conception and elaboration of new deformable electrolytes becomes more crucial than ever. Among diverse materials, gel polymer electrolytes (hydrogels, organogels, and ionogels) remain the most studied thanks to the ability to tune the physicochemical and mechanical properties by changing the nature of the precursors, the type of interactions, and the formulation.
View Article and Find Full Text PDFPolyfunctional and Multisensory Bio-Ionoelastomers Enabled by Covalent Adaptive Networks With Hierarchically Dynamic Bonding.
Adv Mater
November 2024
Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575, Singapore.
Developing versatile ionoelastomers, the alternatives to hydrogels and ionogels, will boost the advancement of high-performance ionotronic devices. However, meeting the requirements of bio-derivation, high toughness, high stretchability, autonomous self-healing ability, high ionic conductivity, reprocessing, and favorable recyclability in a single ionoelastomer remains a challenging endeavor. Herein, a dynamic covalent and supramolecular design, lipoic acid (LA)-based dynamic covalent ionoelastomer (DCIE), is proposed via melt building covalent adaptive networks with hierarchically dynamic bonding (CAN-HDB), wherein lithium bonds aid in the dissociation of ions and the integration of dynamic disulfide metathesis, lithium bonds, and binary hydrogen bonds enhances the mechanical performances, self-healing capability, reprocessing, and recyclability.
View Article and Find Full Text PDFA gelatin-based ionogel with anti-swelling properties for underwater human physiological signal detection.
J Mater Chem B
July 2024
Institute of Petrochemical Technology, Jilin Institute of Chemical Technology, Jilin 132022, China.
A hydrogel is an ideal matrix material for flexible electronic devices, electronic skin and health detection devices due to its outstanding flexibility and stretchability. However, hydrogel-based flexible electronic devices swell once they are placed in a high humidity or underwater environment. The swelling behavior could damage the internal structure of hydrogels, ultimately leading to the reduction or complete loss of mechanical properties, electrical conductivity and sensing function.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!