Surface-Modified Cellulose Nanocrystal-incorporated Poly(butylene succinate) Nanocomposites
- Surface-Modified Cellulose Nanocrystal-incorporated Poly(butylene succinate) Nanocomposites
- 조세연; 이민의; 곽효원; 진형준
- Issue Date
- Fibers and polymers
- VOL 19, NO 7-1402
- In this work, surface acetylation of cellulose nanocrystals was performed to improve their interfacial adhesion with hydrophobic polymer matrix and to restore their thermal stability by removing the sulfate groups. The morphological, chemical, and thermal characteristics of the surface-modified cellulose nanocrystals (ACNs) were confirmed by field emission-transmission electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy. Furthermore, poly(butylene succinate) (PBS)/ACNs nanocomposites were also prepared via melt-mixing process, and the reinforcing effects of ACNs on the thermal, mechanical, and biodegradable properties of the nanocomposites were investigated. The Young's modulus and tensile strength of the PBS/ACN nanocomposites increased from 115.36 and 33.67 MPa for the neat PBS to 130.55 MPa and 39.97 MPa, respectively. The thermal stability and biodegradability of the nanocomposites also increased with increasing ACN content.
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