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The effect of silica morphology on properties of PVA/silica nano-composites.
- Source :
-
Chinese Journal of Polymer Science (Springer Science & Business Media B.V.) . Nov2013, Vol. 31 Issue 11, p1546-1553. 8p. - Publication Year :
- 2013
-
Abstract
- Two kinds of poly(vinyl alcohol) (PVA)-silica composites were prepared with different methods. One composite was prepared by directly mixing PVA with 80 nm silica nano-particles which were made from tetraethoxysilane (TEOS). The another was obtained by the mixing PVA and hydrolyzed TEOS in the presence of acid-catalyst. The properties of the two PVA/silica hybrids were characterized by means of scanning electron microscopy (SEM), UV-Visible spectroscopy, solubility tests, limiting oxygen index (LOI) test, tensile test and dynamical mechanical analysis (DMA), respectively. The results indicate that PVA-TEOS composites (PT for short) display more transparency than PVA-silica nano-particles hybrids (PS for short). At the same time, The PT composites presented more excellent performance than PS in water resistance, fire resistance and mechanical properties. Moreover, the T of PT increased with increasing TEOS content, while that of PS decreased. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02567679
- Volume :
- 31
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Chinese Journal of Polymer Science (Springer Science & Business Media B.V.)
- Publication Type :
- Academic Journal
- Accession number :
- 90673195
- Full Text :
- https://doi.org/10.1007/s10118-013-1345-1