Photothermal techniques applied to the study of thermal properties in biodegradable films

. The objective of the present work was to determine the thermal diffusivity and effusivity of biodegradable films by using photothermal techniques. The thermal diffusivity was studied by using the open photoacoustic cell technique. On the other hand the thermal effusivity was obtained by the photop...

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Bibliographic Details
Published in:The European physical journal. ST, Special topics Special topics, 2008, Vol.153 (1), p.179-182
Main Authors: San Martín-Martínez, E., Aguilar-Méndez, M. A., Cruz-Orea, A., García-Quiroz, A.
Format: Article
Language:English
Subjects:
Applied sciences
Atomic
Classical and Continuum Physics
Condensed Matter Physics
Exact sciences and technology
Materials Science
Measurement Science and Instrumentation
Molecular
Natural polymers
Optical and Plasma Physics
Organic polymers
Physicochemistry of polymers
Physics
Physics and Astronomy
Properties and characterization
Starch and polysaccharides
Thermal and thermodynamic properties
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Summary:. The objective of the present work was to determine the thermal diffusivity and effusivity of biodegradable films by using photothermal techniques. The thermal diffusivity was studied by using the open photoacoustic cell technique. On the other hand the thermal effusivity was obtained by the photopyroelectric technique in a front detection configuration. The films were elaborated from mixtures of low density polyethylene (LDPE) and corn starch. The results showed that at high moisture values, the thermal diffusivity increased as the starch concentration was higher in the film. However at low moisture conditions (
ISSN:1951-6355
1951-6401
DOI:10.1140/epjst/e2008-00422-8