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Enhanced Infrared Absorptance of Polyethylene Terephthalate via Inorganic Particulate Additives

Published online by Cambridge University Press:  10 February 2011

L. A. Maiorino
Affiliation:
Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332
K. S. Meyers
Affiliation:
Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332
R. F. Speyer
Affiliation:
Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332
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Abstract

Amorphous carbon and infrared absorbing glass particulate additives to polyethlene terephthalate increased its infrared absorptance. Significantly lower volume concentrations of carbon were required for a given absorptance increase; however, test bars with glass additive concentrations displaying ˜90% absorptances were largely aesthetically unaltered. Carbon additions to produce the same infrared absorptance resulted in nearly opaque test bars. Heat transfer calculations showed preform heatup time could be reduced from 1 s to 0.6 s with glass particle additions

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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