Piezoelectric and Dielectric Characterization of MWCNT-Based Nanocomposite Flexible Films

<div>The capacitance, <span class="nowrap"><svg height="9.01194pt" id="M17" style="vertical-align:-0.2455397pt" version="1.1" viewbox="-0.0498162 -8.7664 8.77705 9.01194" width="8.77705pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M614 175C564 76 510 21 408 21C256 21 146 149 146 336C146 488 235 629 402 629C510 629 570 586 597 480L626 488C620 541 614 582 606 638C578 643 510 665 429 665C206 665 44 527 44 316C44 157 153 -15 402 -15C474 -15 558 5 586 11C604 45 629 119 643 165L614 175Z" id="g121-65"></path></g></svg>,</span> and dielectric constant, <span class="nowrap"><svg height="11.6425pt" id="M18" style="vertical-align:-0.2063999pt" version="1.1" viewbox="-0.0498162 -11.4361 9.24515 11.6425" width="9.24515pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M387 375C387 402 357 448 257 448C172 448 82 404 82 326C82 289 108 255 156 241V239C85 223 23 181 23 116C23 39 89 -12 182 -12C265 -12 336 31 378 91L361 114C320 73 269 47 216 47C157 47 115 82 115 137C115 191 160 219 218 219C243 219 262 218 272 217L304 259L302 266C295 265 281 264 255 264C195 264 163 294 163 335C163 377 200 416 249 416C293 416 321 389 329 342C331 332 335 329 341 329C355 329 387 352 387 375Z" id="g113-247"></path></g><g transform="matrix(.0091,0,0,-0.0091,5.331,-5.741)"><path d="M310 541L304 571C290 586 211 619 185 610L80 76L131 52L310 541Z" id="g50-31"></path></g></svg>,</span> of three-phase PZT-Epoxy-MWCNT thick films that were contact polarized, plotted as a function of MWCNT volume fraction, show an enhancement in the values with an increase in the volume fraction of MWCNT at 110 Hz.</div>

Journal of Nanomaterials

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Figure 12

Figure 12: Piezoelectric and Dielectric Characterization of MWCNT-Based Nanocomposite Flexible Films 