A universal route for the simultaneous extraction and functionalization of cellulose nanocrystals from industrial and agricultural celluloses |
| |
| Authors: | Guo-Yin Chen Hou-Yong Yu Cai-Hong Zhang Ying Zhou Ju-Ming Yao |
| |
| Institution: | 1.The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textiles,Zhejiang Sci-Tech University,Hangzhou,China;2.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering,Donghua University,Shanghai,China;3.National Engineering Lab for Textile Fiber Materials & Processing Technology,Zhejiang Sci-Tech University,Hangzhou,China |
| |
| Abstract: | A simple route was designed to extract the cellulose nanocrystals (CNCs) with formate groups from industrial and agricultural celluloses like microcrystalline cellulose (MCC), viscose fiber, ginger fiber, and bamboo fiber. The effect of reaction time on the microstructure and properties of the CNCs was investigated in detail, while microstructure and properties of different CNCs were compared. The rod-like CNCs (MCC) with hundreds of nanometers in length and about 10 nm in width, nanofibrillated CNCs (ginger fiber bamboo fiber) with average width of 30 nm and the length of 1 μm, and spherical CNCs (viscose fiber) with the width of 56 nm were obtained by one-step HCOOH/HCl hydrolysis. The CNCs with improved thermal stability showed the maximum degradation temperature (T max) of 368.9–388.2 °C due to the introduction of formate groups (reducibility) and the increased crystallinity. Such CNCs may be used as an effective template for the synthesis of nanohybrids or reinforcing material for high-performance nanocomposites. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
