Chemical functionalization of nano fibrillated cellulose by glycidyl silane coupling agents: A grafted silane network characterization study

被引：42

作者：

Cabrera, Isis Castro ^{[1
]}

Berlioz, Sophie ^{[1
]}

Fahs, Armand ^{[1
]}

Louarn, Guy ^{[2
]}

Carriere, Pascal ^{[1
]}

机构：

[1] Univ Toulon & Var, Lab MAt Polymeres Interfaces & Environm Marin MAP, CS 60584, F-83041 Toulon 9, France

[2] Univ Nantes, Inst Mat Jean Rouxel, IMN, CNRS, 2 Rue Houssiniere, F-44000 Nantes, France

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2020年 / 165卷

关键词：

Surface chemical modification; Nano fibrillated cellulose; Silylation; GPS; GPMES; SURFACE MODIFICATION; MICROFIBRILLATED CELLULOSE; MECHANICAL-PROPERTIES; FIBERS; ORGANOSILANES; NANOCRYSTALS; COMPOSITES;

D O I：

10.1016/j.ijbiomac.2020.10.045

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Nano fibrillated cellulose (NFC) has turned into a material widely studied due to its desirable performance for numerous organic systems. Nevertheless, its surface is not very compatible with most organic systems; hence, chemical functionalization methods offer a path to solve this problem. In this study, NFC is successfully functionalized with two silane coupling agents: 3-glycidyloxypropyl trimethoxysilane (GPS) and 3-glycidyloxypropyl dimethylethoxysilane (GPMES) by a simple, direct, and environmentally friendly method. Different analyses have been carried out in order to confirm the chemical modification of NFC. ATR-IR, XPS, and Si-29 NMR spectroscopies confirmed the chemical modification that allowed the understanding of the structure and the conformation onto the modified NFC surface. SEM and AFM microscopies were performed to study possible alterations in morphology; a slight change was observed. Thermal properties were also analyzed by TGA analysis. It remains stable after chemical functionalization. Grafted NFC showed good performance compared to the pristine one. It allows a better dispersion into organic systems improving their properties. (C) 2020 Elsevier B.V. All rights reserved.

引用

页码：1773 / 1782

页数：10

共 46 条

[31] Effect of Reaction Conditions on the Surface Modification of Cellulose Nanofibrils with Aminopropyl Triethoxysilane [J].