The Library
Ultrasonic properties of composites of polymers and inorganic nanoparticles
Tools
Samulionis, Vytautas, Svirskas, Šarūnas, Banys, Jūras, Sánchez-Ferrer, Antoni, Chin, Seow Jecg and McNally, Tony (2013) Ultrasonic properties of composites of polymers and inorganic nanoparticles. Physica Status Solidi (a), Volume 210 (Number 11). pp. 2348-2352. doi:10.1002/pssa.201329294 ISSN 0031-8965.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1002/pssa.201329294
Abstract
The temperature dependencies of ultrasonic velocity and attenuation were measured in composites of inorganic nanoparticles with two types of polymers, poly(urea) elastomer with inorganic Mo6S4I6 nanowires and poly(ϵ-caprolactone) (PCL) with Mo6S3I6 nanowires. Below room temperature large ultrasonic relaxation attenuation maxima and velocity dispersion were observed. It was found that the attenuation peak in the elastomer shifted to higher temperature after doping with nanoparticles and this behavior was related to the shift of glass transition temperature. The ultrasonic attenuation data was fitted to a relaxation equation with a single temperature dependent relaxation time. The thermal activation energy of the relaxation process, which was calculated from ultrasonic data, was found to increase in the poly(urea) elastomer doped with MoSI nanowires. The low temperature ultrasonic velocity increased in the poly(urea) with nanowires added and is determined by the increase in elastic modulus. Similar ultrasonic behavior was obtained for PCL composites with inorganic MoSI nanowires. In this case, the increase in elastic modulus was smaller in comparison to the composites of poly(urea) and nanowires. Therefore, reinforcement of PCL was less pronounced.
Item Type: | Journal Article | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
Journal or Publication Title: | Physica Status Solidi (a) | ||||||||||
Publisher: | Wiley - VCH Verlag GmbH & Co. KGaA | ||||||||||
ISSN: | 0031-8965 | ||||||||||
Official Date: | 20 November 2013 | ||||||||||
Dates: |
|
||||||||||
Volume: | Volume 210 | ||||||||||
Number: | Number 11 | ||||||||||
Page Range: | pp. 2348-2352 | ||||||||||
DOI: | 10.1002/pssa.201329294 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |