Abstract
This study reported that the intercalation of C20 organoclay was achieved in polyurea (PUr) matrices. The significant reinforcement was observed in a highly crosslinked PUr (HPUr), in which the Young's modulus, stress and elongation at break was improved by ~40%, ~110% and ~50%, respectively, with the addition of 5. wt% C20. The energy dissipation of HPUrs was more than doubled by 5. wt% C20 at the strain of 50% and 100%. It was also found that the reinforcement was not equally significant in a lowly crosslinked PUr, indicating that macromolecular structure of the PUr matrices was important for optimizing the nano-effect in the nanocomposites.
Original language | English |
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Pages (from-to) | 44-48 |
Number of pages | 5 |
Journal | Composites Science and Technology |
Volume | 103 |
DOIs | |
State | Published - 28 Oct 2014 |
Externally published | Yes |
Keywords
- A. Nano comoposites
- A. Polymer-matrix composites (PMCs)
- B. Mechanical properties
- B. Stress/strain curves