Production potential of cellulose nanofibers from industrial residues: Efficiency and nanofiber characteristics
| Autor: | Maxime Noël, Linn Berglund, Kristiina Oksman, Yvonne Aitomäki, Tommy Öman |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Biomaterial 02 engineering and technology Raw material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Grinding law.invention chemistry.chemical_compound Crystallinity chemistry Chemical engineering Magazine law Nanofiber Brewing Cellulose 0210 nano-technology business Agronomy and Crop Science |
| Zdroj: | Industrial Crops and Products. 92:84-92 |
| ISSN: | 0926-6690 |
| Popis: | The aim of this study was to evaluate the production potential of cellulose nanofibers from two different industrial bio-residues: wastes from the juice industry (carrot) and the beer brewing process (BSG). The mechanical separation of the cellulose nanofibers was by ultrafine grinding. X-ray diffraction (XRD) and Raman spectroscopy revealed that the materials were mechanically isolated without significantly affecting their crystallinity. The carrot residue was more easily bleached and consumed less energy during grinding, using only 0.9 kWh/kg compared to 21 kWh/kg for the BSG. The carrot residue also had a 10% higher yield than the BSG. Moreover, the dried nanofiber networks showed high mechanical properties, with an average modulus and strength of 12.9 GPa and 210 MPa, respectively, thus indicating a homogeneous nanosize distribution. The study showed that carrot residue has great potential for the industrial production of cellulose nanofibers due to its high quality, processing efficiency, and low raw material cost. |
| Databáze: | OpenAIRE |
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