Eco-friendly Modification for the Cellulose Nanofibers Derived from Pineapple Leaves for High-performance Nanocomposite

2018 5th International Conference on Coastal and Ocean Engineering

Shih, Yeng-Fong^1 ; Tsou, Zong-Gi^1 ; Wang, Chih-Hung^1 ; Lian, Hong-Yuan^2

Department of Applied Chemistry, Chaoyang University of Technology, No. 168, Jifeng E. Rd., Wufeng District, Taichung

41349, Taiwan^1

Department of Advanced Coating, Division of Applied Chemistry, Material and Chemical Research Laboratories, Industrial Technology Research Institute, Taiwan^2

关键词: Acid-base treatment;    Aqueous system;    Interfacial adhesions;    Interfacial compatibility;    Lignin contents;    Surface polarities;    Uniform dispersions;    Water transport;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/171/1/012041/pdf
DOI  :  10.1088/1755-1315/171/1/012041

来源: IOP

【 摘 要 】

This study extracted cellulose nanofibers (NFC) from pineapple leaves, and then employed eco-friendly aqueous system to modify NFC with a layer of polystyrene (PS). The successful modification was confirmed by FTIR analysis, after acid-base treatment can effectively reduce the lignin content and better water transport, and the PS layer could lower NFC's surface polarity for improving the interfacial compatibility in PS matrix. By introducing NFC into PS matrix, the PS-modified NFC showed better interfacial adhesion and uniform dispersion, and resulted nanocomposite with higher tensile strength, char yield and transparency. Therefore, the eco-friendly modification could help NFC reinforce nanocomposite for enhancing mechanical property, thermal resistance and transparent appearance.