Ultrasonic evaluation of aging kinetics in amorphous polymer
Issued Date
2022-08-15
Resource Type
ISSN
00036951
Scopus ID
2-s2.0-85137158261
Journal Title
Applied Physics Letters
Volume
121
Issue
7
Rights Holder(s)
SCOPUS
Bibliographic Citation
Applied Physics Letters Vol.121 No.7 (2022)
Suggested Citation
Yambangyang P., Wilson R., Reboud J., Cooper J.M., Demčenko A. Ultrasonic evaluation of aging kinetics in amorphous polymer. Applied Physics Letters Vol.121 No.7 (2022). doi:10.1063/5.0102398 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/86915
Title
Ultrasonic evaluation of aging kinetics in amorphous polymer
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
The physical aging of amorphous polymers induces changes in material properties, which are challenging to detect in situ in industrial settings. Here, we present a nondestructive nonlinear ultrasonic evaluation technique that enables localized measurements of the combined effects of temperature and time in amorphous polymers, without needing to remove materials. The proposed technique is demonstrated using commercial grade poly(vinyl chloride) samples and is supported by analysis of wave-material interactions. The results show that the physical aging of the polymer is described by the Arrhenius equation with an effective activation energy of 103 kJ/mol over the analyzed temperature range.