Composite of polylactic acid and microcellulose from kombucha membranes
| Autor: | Andrea Guevara-Morales, Bárbara Estefanía Arteaga-Ballesteros, Horacio Vieyra, U. Figueroa-López, Eduardo San Martín-Martínez |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Kombucha
Materials science Polymers and Plastics General Chemical Engineering Composite number 02 engineering and technology 010402 general chemistry 01 natural sciences chemistry.chemical_compound stomatognathic system Polylactic acid composite Polymers and polymer manufacture Physical and Theoretical Chemistry polylactic acid bacterial cellulose technology industry and agriculture respiratory system equipment and supplies 021001 nanoscience & nanotechnology 0104 chemical sciences TP1080-1185 Membrane chemistry Chemical engineering Bacterial cellulose kombucha lipids (amino acids peptides and proteins) scoby 0210 nano-technology |
| Zdroj: | e-Polymers, Vol 21, Iss 1, Pp 015-026 (2020) |
| ISSN: | 1618-7229 |
| DOI: | 10.1515/epoly-2021-0001 |
| Popis: | Polylactic acid (PLA) is one of the main components of biodegradable and biocompatible composites. Bacterial cellulose from kombucha membranes is an excellent candidate to be used as a natural filler of eco-composites because it is renewable, has low cost, low density, and acceptable specific strength properties, and is biodegradable. The study aimed to prepare composites of PLA and bacterial cellulose to produce a biodegradable and compostable material. The bacterial microcellulose was obtained from kombucha membranes and blended with PLA by extrusion. The composites contained a PLA with 1%, 3%, and 5% of cellulose. We characterized the PLA, bacterial microcellulose, and composites to ascertain their size and aspect, degree of crystallinity, distribution of the cellulose into PLA, and their mechanical properties. We observed an increase in crystallinity proportional to the cellulose content for the blends and found that the 3% cellulose blend withstands the stress of up to 40 MPa and temperatures up to 120°C before distortion. |
| Databáze: | OpenAIRE |
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