| Title |
Ultrasonic and dielectric studies of polymer PDMS composites with ZnO and onion-like carbons nanoinclusions / |
| Authors |
Samulionis, Vytautas ; Macutkevič, Jan ; Banys, Jūras ; Shenderova, Olga |
| DOI |
10.1088/1757-899X/87/1/012010 |
| Full Text |
|
| Is Part of |
IOP Conference series: Materials science and engineering: 2015 Global Conference on Polymer and Composite Materials (PCM2015), 16–18 May 2015, Beijing, China.. Bristol : Institute of Physics Publishing Ltd. 2015, vol. 87, no. 1, art. no. 012010, p. [1-6].. ISSN 1757-8981 |
| Keywords [eng] |
ZnO ; nanocomposites ; PDMS |
| Abstract [eng] |
The ultrasonic and dielectric temperature investigations were performed in polydi-methylsiloxane (PDMS) with zinc oxide (ZnO) and onion-like carbon (OLC) nanocomposites. In the glass transition region, the ultrasonic velocity dispersion and large ultrasonic attenuation maxima were observed. The positions of ultrasonic attenuation peaks were slightly shifted to higher temperatures after doping PDMS with OLC and ZnO nanoparticles. The ultrasonic relaxation was compared to that of dielectric and such behaviour was described by Vogel-Fulcher law. The upshift of the glass transition temperature with addition of nanoparticles was confirmed by both methods. The additional increase of ultrasonic attenuation in composites doped with OLC and ZnO was observed at room temperature and such behaviour we attributed to ultrasound–nanofiller interaction in polymer matrix. |
| Published |
Bristol : Institute of Physics Publishing Ltd |
| Type |
Conference paper |
| Language |
English |
| Publication date |
2015 |
| CC license |
|
