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- Title
Crystallization and melting behavior of PP/nano-CaCO<sub>3</sub> composites with different interfacial interaction.
- Authors
Yuhai Wang; Hao Shen; Gu Li; Kancheng Mai
- Abstract
The effect of different interfacial interaction on the crystallization and melting behavior of PP/nano-CaCO3 composites was investigated using differential scanning calorimetry, X-ray diffraction and polarized optical microscope. The results indicated that nano-CaCO3 acted as heterogeneous nuclei for PP crystallization. There existed a synergistic effect of heterogeneous nucleation between nano-CaCO3 and compatibilizer for PP crystallization, which was proved by increasing the crystallization rate and decreasing the fold surface free energy as well as favoring the formation of β-crystal of PP. However, this synergistic effect was dependent on the interfacial interaction between PP and compatibilizer. The increased miscibility between compatibilizer and PP favored this synergistic effect.
- Subjects
NANOCOMPOSITE materials; CRYSTALLIZATION; MELTING points; CALORIMETRY; MICROSCOPES; COMPATIBILIZERS
- Publication
Journal of Thermal Analysis & Calorimetry, 2010, Vol 99, Issue 2, p399
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-009-0130-4