Preparation and Characterization of Surface-Modified Nanocellulose Fibers for Water-Based Coating Application

Abstract:

Nanocellulose fibers (NCF) is a renewable biodegradable polymer in nature. It has extensively interest as a reinforcement material in nanocomposites due to its nanoscale advantages. However, the efficiency of NCF dispersion in polymer matrix has limitation due to its self-agglomeration.The objective of this research was to prepare surface-modified NCF using three different acids; succinic anhydride, phthalic anhydride and citric acid. The molar ratios of acid to anhydroglucose units in NCF used in this work were 6:1, 8:1 and 10:1. The effects of acid types and molar ratios toward physical properties were studied. The results showed that succinic anhydride-modified NCF provided the highest DS range from 0.46-0.86. Dispersion of succinic anhydride-modified NCF provided good stability in water for 30 days. The succinic anhydride-modified NCF of 1:6 molar ratio is suitable for emulsion coating application.

• Periodical: Key Engineering Materials (Volume 845)
• Pages: 21-26
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.845.21
• Online since: May 2020
• Authors: Narunchara Phurahong*, Nantana Jiratumnukul
• Keywords: Biomaterials, Cellulose Nanofibers, Reinforcement Material, Surface-Modification

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