期刊
CARBOHYDRATE POLYMERS
卷 92, 期 1, 页码 69-76出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.09.054
关键词
Composites; Cellulose nanocrystals; Carboxylated styrene-butadiene rubber; Properties
资金
- Program for New Century Excellent Talents in University [NCET-11-0148]
- Specialized Research Fund for the Doctoral Program of Higher Education [20110172120002]
- State Key Laboratory of Pulp and Paper Engineering of China [201101]
A series of carboxylated styrene-butadiene rubber (XSBR)/cellulose nanocrystals (CNs) latex composites were successfully prepared. The vulcanization process, morphology, dynamic viscoelastic behavior, dynamic mechanical property, thermal and mechanical performance of the XSBR/CNs composites were investigated in detail. The results revealed that CNs were dispersed uniformly in the XSBR matrix and formed a strong filler-filler network. The dynamic mechanical analysis (DMA) showed that the glass transition temperature (T-g) of XSBR matrix was shifted from 48.45 to 50.64 degrees C with 3 phr CNs, but decreased from 50.64 to 46.28 degrees C when further increasing CNs content up to 15 phr. The composites exhibited a significant enhancement in tensile strength (from 16.9 to 24.1 MPa) and tear strength (from 43.5 to 65.2 MPa) with loading CNs from 0 to 15 phr. In addition, the thermo-gravimetric analysis (TGA) showed that the temperature at 5% weight loss of the XSBR/CNs composites decreased slightly with an increase of the CNs content. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
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