Premium
Performance of MWCNT/HDPE Nanocomposites at High Strain Rates
Author(s) -
AlLafi Waleed,
Jin Jie,
Xu Sunxi,
Song Mo
Publication year - 2010
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200900374
Subject(s) - high density polyethylene , materials science , composite material , composite number , crystallinity , strain rate , nanocomposite , split hopkinson pressure bar , polyethylene
Performance of HDPE/MWCNT composite at high strain rate up to 10 4 s −1 was investigated in a split Hopkinson pressure bar. The results revealed that the incorporation of MWCNTs into HDPE can enhance the impact strength of HDPE. High strain rate impact has a significant influence on morphology, density, crystallinity and melting temperature of the composite. With increase in strain rate, the densities of both HDPE and HDPE/MWCNT composite decreased. The drop of the density of HDPE/MWCNT composite was quicker than that of HDPE density. This could be the reason that much more cracks were formed in the HDPE/MWCNT composite, which could result in high energy dissipation, during SHPB test. The corporation of MWCNTs did lead to the decrease in yield stress.