TY - JOUR
T1 - High mechanical performance polyurea/organoclay nanocomposites
AU - Cai, Dongyu
AU - Song, Mo
PY - 2014/10/28
Y1 - 2014/10/28
N2 - 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.
AB - 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.
KW - A. Nano comoposites
KW - A. Polymer-matrix composites (PMCs)
KW - B. Mechanical properties
KW - B. Stress/strain curves
UR - http://www.scopus.com/inward/record.url?scp=84906860021&partnerID=8YFLogxK
U2 - 10.1016/j.compscitech.2014.08.011
DO - 10.1016/j.compscitech.2014.08.011
M3 - 文章
AN - SCOPUS:84906860021
SN - 0266-3538
VL - 103
SP - 44
EP - 48
JO - Composites Science and Technology
JF - Composites Science and Technology
ER -