Abstract
Poly(butylene succinate-co-adipate) (PBSA) and organically modified montmorillonite (OMMT) nanocomposites of three different compositions were prepared by melt-extrusion in a batch mixer. The structure of the nano-composites was studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM) that revealed a coexistence of exfoliated and intercalated silicate layers dispersed in the PBSA matrix, regardless of the silicate loading. The degree of crystallinity of PBSA decreases with the addition of OMMT platelets. Dynamic mechanical analysis revealed remarkable increase in flexural storage modulus when compared with that of neat PBSA. Tensile property measurements exhibit substantial increase in stiffness with simultaneous increase in elongation at break of nanocomposites as compared to that of neat PBSA. The effect of clay loading on the melt-state linear viscoelastic behavior of mixed intercalated/exfoliated nanocomposites was also investigated.
Original language | English |
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Pages (from-to) | 759-768 |
Number of pages | 10 |
Journal | Macromolecular Materials and Engineering |
Volume | 290 |
Issue number | 8 |
DOIs | |
Publication status | Published - 12 Aug 2005 |
Externally published | Yes |
Keywords
- Melt rheological behavior
- Nanocomposites
- Organically modified montmorillonite
- Poly(butylene succinate-co-adipate)
- Structure
- Thermal and mechanical properties
ASJC Scopus subject areas
- General Chemical Engineering
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry