Dissipation factor of acrylic dielectric elastomer--an experimental study.
This paper studies the effects of frequency, pre-strain and electrode types on the dielectric property of a commercially available and most widely used acrylic elastomer, VHB 4910. The acrylic VHB film is pre-stretched in biaxial directions with the help of an in-house developed biaxial stretching device. The stretched film has been sandwiched between two card board frames to prepare samples of different pre-stretch values. Three different types of electrodes namely copper tape, silver grease and carbon grease have been pasted on the both sides of prestretched samples. Dissipation factor of pre-stretched and electrode adhered VHB sample has been experimentally determined at different frequency (upto 1 MHz) of input voltage using a LCR meter. Experimental results on the variation of dissipation factor with pre-straining, frequency (low to high) and electrode types are reported. The dissipation factor value is further used to estimate electrical efficiency at different biaxial pre-straining, frequency and electrode types.
Raj Kumar
RK
Sahu
Bipul
B
Pramanik
Karali
K
Patra
Shovan
S
Bhaumik
Arvind Kumar
AK
Pandey
Dipak Kumar
DK
Setua
D002244:Carbon / Q000737:chemistry; D020724:Elastomers / Q000737:chemistry*; D017097:Electric Impedance; D004566:Electrodes
D020724:Elastomers; D002244:Carbon