期刊
POLIMEROS-CIENCIA E TECNOLOGIA
卷 28, 期 2, 页码 93-102出版社
ASSOC BRASIL POLIMEROS
DOI: 10.1590/0104-1428.2413
关键词
cellulose nanocrystals; cellulose nanofibrils; thermal stability; rheology
资金
- Brazilian National Council for Scientific and Technological Development (CNPq)
- Ciencia Sem Fronteiras (CsF) program
- LabEx Tec 21 [ANR-11-LABX-0030]
- PolyNat Carnot Institut [ANR-16-CARN-0025-01]
- Region Rhone-Alpes (ERDF: European regional development fund)
Cellulose nanocrystals (CNC) and nanofibrils (CNF) were obtained by acid hydrolyzis and mechanical treatment, respectively, of cell ulosic fibers from paper. Additionally, surface modification was performed for CNC by neutralization (NaOH) and oxidation (TEMPO). The thermal stability, surface properties and rheological behavior of these nanomaterials were compared. A clear difference in CNC surface was found upon neutralization and oxidation treatments, leading to distinct thermal behaviors. Optical and rheological properties were found to be predominantly by the particles size, being strongly affected by inertial effects.
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