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Effect of Nanoscale Species on the Behavior of Polymer Nanocomposites Subjected to Laser Pulse Heating

Published online by Cambridge University Press:  21 December 2012

Stephen F. Bartolucci ,
Jeffrey Warrender ,
Karen Supan ,
Jeffery Wiggins  and
Lawrence LaBeaud
Stephen F. Bartolucci
Affiliation:
US Army Armaments Research Development and Engineering Center – Benét Laboratories, Watervliet, NY 12189, U.S.A.
Jeffrey Warrender
Affiliation:
US Army Armaments Research Development and Engineering Center – Benét Laboratories, Watervliet, NY 12189, U.S.A.
Karen Supan
Affiliation:
Norwich University, Department of Mechanical Engineering, Northfield, VT, 05663, U.S.A.
Jeffery Wiggins
Affiliation:
School of Polymers and High Performance Materials, University of Southern Mississippi, Hattiesburg, MS, 39406U.S.A.
Lawrence LaBeaud
Affiliation:
School of Polymers and High Performance Materials, University of Southern Mississippi, Hattiesburg, MS, 39406U.S.A.
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Abstract

Polymers and polymer nanocomposites have been studied under conditions of extremely high heating rates. Traditionally, these materials have been examined by the flammability research community using methods which have heating rates on the order of 10 degrees C/min. In this study, we have examined how polypropylene-nanoclay (montmorillonite) and polypropylene-carbon nanotube nanocomposites behave subjected to heating rates on the order of one million degrees C/min when irradiated with a 1064 nm Nd-YAG variable pulse millisecond laser. Time-resolved temperature data and mass loss data was collected for each sample as well as post-mortem surface characterization using spectroscopy and electron microscopy. The analysis shows that the nanospecies are effective in providing a protective barrier that decreases the amount of degradation and mass loss to the underlying polymer material. The effect is clearly seen after irradiating with a single pulse and multiple pulses. A comparison between the performance of the nanoclay and carbon nanotube composites is given.

Keywords

polymernanoscalelaser decomposition
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1519: Symposium MM – Materials under Extreme Environments , 2013 , mrsf12-1519-mm03-22
Copyright
Copyright © Materials Research Society 2012

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References

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