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Hot Drawing & characterization of Ultra high Molecular Weight Polyethylene (UHMWPE) Fibers to produce high impact resistant & light weight Armor Composites.
Author(s):
1. Faiz-Ur-Rehman: Pakistan Institute of Engineering & Applied Sciences, Islamabad, Pakistan
2. Toqeer Kausar: Pakistan Atomic Energy Commission, Islamabad, Pakistan
3. M. Bilal Khan: National University of Sciences & Technology, Islamabad, Pakistan
4. Sultan Mahmood: National University of Sciences & Technology, Islamabad, Pakistan
Abstract:
UHMWPE fibers produced by gel spinning and subsequent hot drawing mechanism have unique, remarkable and promising properties to place them among the strongest and lightest fibers to develop high impact resistant, damage tolerant and light weight armor/ballistic composites. The development of high strength UHMWPE fibers and their subsequent use for armor composites would be a major contribution to the advancement of high impact resistant and light weight composite technology. Hot drawing of gel spun UHMWPE has been conducted to achieve high strength, high modulus fibers by the mechanism of molecular orientation. For this purpose, hot drawing has been carried out in hot tube. The effect of drawing on tensile strength and modulus of fiber has been investigated. Preliminary results employing uniaxial stretching are promising to the tune of a draw ratio of 25. The tensile strength of gel spun and hot drawn fibers is improved by a factor of 16 while modulus increased from 239 MPa to 3628 MPa as compared with un-oriented (compression molded) UHMWPE.
Page(s): 87-93
DOI: DOI not available
Published: Journal: Proceedings 6th International Bhurban Conference on Applied Sciences and Technology , Volume: 1, Issue: 0, Year: 2009
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