Measurement Techniques and Methods for the Pressure Coefficient of Viscosity of Polymer Melts

<div>Determination of <svg height="12.7178pt" id="M31" style="vertical-align:-3.42947pt" version="1.1" viewbox="-0.0498162 -9.28833 12.4108 12.7178" width="12.4108pt" 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="M558 587C558 666 497 712 432 712C379 712 330 691 284 650C212 586 178 508 148 348L71 -65C49 -185 35 -229 23 -235L27 -261C49 -259 101 -251 124 -224C131 -216 138 -178 159 -24C171 66 197 200 227 356C264 550 295 668 393 668C443 668 479 632 479 575C479 516 446 458 383 418C361 404 344 398 318 397L296 350C395 338 460 281 460 192C460 110 411 40 300 40C258 40 215 55 192 69L181 51C191 18 222 -16 266 -16C308 -16 351 1 397 26C471 67 545 142 545 221C545 315 486 365 401 395C469 437 558 498 558 587Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,7.228,3.132)"><path d="M487 458L455 460C436 434 425 433 397 433C331 433 279 437 225 437C103 437 52 374 24 338L49 312C100 363 152 379 229 374C210 308 184 213 163 117C158 94 156 74 156 58C156 6 180 -12 211 -12C261 -12 313 27 348 68L332 99C307 76 285 64 267 64C252 64 236 86 250 148L301 373C320 373 344 369 364 369C399 369 435 370 450 372C458 386 470 411 487 458Z"></path></g></svg> at several shear stress levels for PMMA (<i>T</i> = 210°C) [<a href="/journals/apt/2023/2020247/#B16">16</a>].</div>

Advances in Polymer Technology

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Figure 10

Figure 10: Measurement Techniques and Methods for the Pressure Coefficient of Viscosity of Polymer Melts 