Influence of Fiber Characteristics and Manufacturing Process on the Structure and Properties of Aramid Paper

Abstract

The influence of fiber characteristics and calendering on the structure and properties of aramid paper was investigated. Laboratory aramid handsheets were prepared, and the structure and properties of them were investigated by Field Emission Scanning Electron Microscopy (FESEM), Dynamic Mechanical Analysis (DMA), X-ray Diffractometer (XRD) and strength test. A comparison with commerical Nomex papers showed that overdrawn fibers with high initial modulus and film-like fibrids were helpful for improving the interface bonding and mechanical strength of aramid paper. Hot calendering improved the crystallinity, storage modulus and interface bonding of aramid materials, thereby greatly improving the mechanical strength of aramid paper.

Keywords:

• Aramid fiber
• Aramid paper
• Dynamic Mechanical Analysis (DMA)
• Field Emission Scanning Electron Microscopy (FESEM)
• X-ray Diffractometer (XRD)

ACKNOWLEDGMENTS

The authors express their thanks to the National Natural Science Foundation of China (Fund number: 50873057) and the Specialized Research Fund for the Institution of Higher Education Doctoral Program (Fund number: 200807080006).

Notes

Note: CD is cross-direction, and MD is machine direction.