Preparation and Properties of Wet-Spun Microcomposite Filaments from Various CNFs and Alginate
| Autor: | Jeong-Ki Kim, Seung-Hwan Lee, Won-Jae Yoo, Jaegyoung Gwon, Gu-Joong Kwon, Eun-Ah Lee, Ji-Soo Park, Song-Yi Han, Chan-Woo Park, Young Ho Seo, Azelia Wulan Cindradewi |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
microcomposite filament Polymers and Plastics cellulose nanofibril Organic chemistry 02 engineering and technology 010402 general chemistry 01 natural sciences Article chemistry.chemical_compound QD241-441 Microfluidic channel Ultimate tensile strength alginate Cellulose Composite material Elastic modulus Spinning Sodium alginate General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Deep eutectic solvent chemistry wet-spinning 0210 nano-technology |
| Zdroj: | Polymers, Vol 13, Iss 1709, p 1709 (2021) Polymers Volume 13 Issue 11 |
| ISSN: | 2073-4360 |
| Popis: | We aimed to improve the mechanical properties of alginate fibers by reinforcing with various cellulose nanofibrils (CNFs). Pure cellulose nanofibril (PCNF), lignocellulose nanofibril (LCNF) obtained via deep eutectic solvent (DES) pretreatment, and TEMPO-oxidized lignocellulose nanofibril (TOLCNF) were employed. Sodium alginate (AL) was mixed with PCNF, LCNF, and TOLCNF with a CNF content of 5–30%. To fabricate microcomposite filaments, the suspensions were wet-spun in calcium chloride (CaCl2) solution through a microfluidic channel. Average diameters of the microcomposite filaments were in the range of 40.2–73.7 μm, which increased with increasing CNF content and spinning rate. The tensile strength and elastic modulus improved as the CNF content increased to 10%, but the addition of 30% CNF deteriorated the tensile properties. The tensile strength and elastic modulus were in the order of LCNF/AL > PCNF/AL > TOLCNF/AL > AL. An increase in the spinning rate improved the tensile properties. |
| Databáze: | OpenAIRE |
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