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Crystallization behavior of polyamide 6/halloysite nanotubes nanocomposites
- Source :
-
Thermochimica Acta . Feb2009, Vol. 484 Issue 1/2, p48-56. 9p. - Publication Year :
- 2009
-
Abstract
- Abstract: Non-isothermal crystallization and the polymorphism of the PA6 and the polyamide 6/halloysite nanotubes (PA6/HNTs) nanocomposites are studied by adopting differential scanning calorimetry (DSC) analysis, X-ray diffraction (XRD) analysis and polarized optical microscopy (POM) observations. HNTs act as nucleating agent and accelerate the crystallization. The kinetics analysis indicates that the fold-surface free energy of PA6/HNTs nanocomposites is larger than that of neat PA6. The increasing tendency of the fold-surface free energy of PA6/HNTs nanocomposites is restricted at higher HNTs loading. Interestingly, the crystallinity of the PA6/HNTs nanocomposites increases with cooling rate. HNTs content is found to have a significant effect upon the crystallinity of the PA6/HNTs nanocomposites, and the crystallinity reaches its maximum with 5phr of HNTs content. Moreover, the higher HNTs content is, the larger percentage γ-phase crystals take up. The crystallization behavior of the PA6/HNTs nanocomposites is correlated with the multiple roles of HNTs in the crystallization of PA6. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00406031
- Volume :
- 484
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Thermochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 36388487
- Full Text :
- https://doi.org/10.1016/j.tca.2008.12.003