Performance of MWCNT/HDPE Nanocomposites at High Strain Rates

被引：16

作者：

Al-Lafi, Waleed ^{[1
]}

Jin, Jie ^{[1
]}

Xu, Sunxi ^{[1
]}

Song, Mo ^{[1
]}

机构：

[1] Univ Loughborough, Dept Mat, Loughborough LE11 3TU, Leics, England

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2010年 / 295卷 / 06期

关键词：

carbon nanotubes; composites; density; high strain rate; polymer nanocomposites;

D O I：

10.1002/mame.200900374

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：519 / 522

页数：4

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