Polylactic acid (PLA)-based nanocomposites were prepared by twin-screw extrusion. Graphene oxide (GO) and an ionic liquid (IL) were used as additives separately and simultaneously. The characterization of the samples was carried out by means of Fourier transform infrared (FT-IR) and Raman spectroscopies, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The viscoelastic behavior was determined using dynamic mechanical analysis (DMA) and rheological measurements. IL acted as internal lubricant increasing the mobility of PLA chains in the solid and rubbery states; however, the effect was less dominant when the composites were melted. When GO and IL were included, the viscosity of the nanocomposites at high temperatures presented a quasi-Newtonian behavior and, therefore, the processability of PLA was highly improved.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7926343 | PMC |
| http://dx.doi.org/10.3390/polym13040655 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Recent Advances in the Evaluation of the Toxicological and Ecotoxicological Risks of Polymer, Zinc Oxide, Titanium Dioxide and Graphene Oxide Nanoparticles.
Nanomaterials (Basel)
January 2025
Department Biochemistry & Physiology, Faculty of Pharmacy and Food Sciences, Universitat de Barcelona, 08028 Barcelona, Spain.
Nanotechnology has substantial potential for advancements in the fields of biology and medicine [...
View Article and Find Full Text PDFCorrection: Robertson et al. Al Modification of Graphene Oxide Membranes: Effect of Al Source. 2022, , 1237.
Membranes (Basel)
January 2025
Department of Mechanical Engineering, Union College, Schenectady, NY 12308, USA.
The authors wish to make a correction to the published paper [...
View Article and Find Full Text PDFCross-Linked Self-Standing Graphene Oxide Membranes: A Pathway to Scalable Applications in Separation Technologies.
Membranes (Basel)
January 2025
Centre for Advanced 2D Materials, National University of Singapore, Singapore 117546, Singapore.
The large-scale implementation of 2D material-based membranes is hindered by mechanical stability and mass transport control challenges. This work describes the fabrication, characterisation, and testing of self-standing graphene oxide (GO) membranes cross-linked with oxides such as FeO, AlO, CaSO, NbO, and a carbide, SiC. These cross-linking agents enhance the mechanical stability of the membranes and modulate their mass transport properties.
View Article and Find Full Text PDFA Sensitive and Selective Electrochemical Aptasensor for Carbendazim Detection.
Biosensors (Basel)
January 2025
School of Science, Computing, and Engineering Technology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
Carbendazim (CBZ) is used to prevent fungal infections in agricultural crops. Given its high persistence and potential for long-term health effects, it is crucial to quickly identify pesticide residues in food and the environment in order to mitigate excessive exposure. Aptamer-based sensors offer a promising solution for pesticide detection due to their exceptional selectivity, design versatility, ease of use, and affordability.
View Article and Find Full Text PDFCombined Graphene Oxide with 2-Methoxyestradiol for Effective Anticancer Therapy in-vitro Model.
Int J Nanomedicine
January 2025
Department of Medical Chemistry, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland.
Introduction: This article describes the invention of graphene oxide (GO) or reduced graphene oxide (rGO) functionalised with 2-methoxy estradiol. The presence of polar hydroxyl groups enables the binding of 2-ME to GO/rGO through hydrogen bonds with epoxy and hydroxyl groups located on the surface and carbonyl and carboxyl groups located at the edges of graphene flake sheets.
Methods: The patented method of producing the subject of the invention and the research results regarding its anticancer effectiveness via cytotoxicity in an in vivo model (against A375 melanoma and 143B osteosarcoma cells) are described.
Want 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!