Fabrication of regenerated cellulose nanoparticles/waterborne polyurethane nanocomposites |
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| Authors: | Eunjoo Shin Soonmo Choi Jaewoong Lee |
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| Affiliation: | 1. Department of Organic Materials and Polymer Engineering, School of Engineering, Dong‐a University, Busan, Republic of Korea;2. Regional Research Institute for Fiber and Fashion Materials, Yeungnam University, Gyeongsan, Gyeongbuk, Republic of Korea;3. Department of Fiber System Engineering, College of Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, Republic of Korea |
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| Abstract: | Regenerated cellulose nanoparticles (RCNs) are ideal materials for new biomass polymer composites industries. RCNs and composites of RCNs and water‐borne polyurethane (RCN/WPU) were prepared using a facile and environmentally friendly approach without the use of any harmful chemicals. The morphological, thermal, and mechanical properties of the RCN/WPU nanocomposite were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), rheometer, wide‐angle X‐ray diffraction, and enzymatic hydrolysis. RCNs exhibited low crystallinity upon regeneration with an NaOH‐based aqueous solution, and were identified by SEM and TEM to consist of the more thermodynamically stable cellulose form. TGA showed that the thermal stability of RCN/WPU nanocomposites was increased by the addition of RCNs. Finally, enzymatic hydrolysis using cellulase indicated that the biodegradability of RCN/WPU nanocomposites was also improved. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 46633. |
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| Keywords: | biopolymers and renewable polymers composites nanoparticles nanowires and nanocrystals polyurethane synthesis and processing techniques |
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