The Effect of Multiwalled Carbon Nanotubes on the Thermal Conductivity and Cellular Size of Polyurethane Foam

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Properties</td><td class="align_center">Unit</td><td class="align_center">Unmodified sample</td><td class="align_center">Modified sample</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Density</td><td class="align_center">g/cm<sup>3</sup></td><td class="align_center">0.048</td><td class="align_center">0.050</td></tr><tr><td class="align_left">Porosity</td><td class="align_center">%</td><td class="align_center">76.9</td><td class="align_center">75.0</td></tr><tr><td class="align_left">Compressive strength</td><td class="align_center">kPa</td><td class="align_center">111.9</td><td class="align_center">115.3</td></tr><tr><td class="align_left">Water uptake</td><td class="align_center">%</td><td class="align_center">68.8</td><td class="align_center">59.6</td></tr><tr><td class="align_left">Volume resistivity</td><td class="align_center"><i>Ω</i>·m</td><td class="align_center"><span style="width: 57.257ptpx;"><svg height="11.9413pt" id="M2" style="vertical-align:-0.3499002pt" version="1.1" viewbox="-0.0498162 -11.5914 57.257 11.9413" width="57.257pt" 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="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z"></path></g><g transform="matrix(.013,0,0,-0.013,6.24,0)"><path d="M113 -12C146 -12 170 11 170 46C170 78 146 103 114 103S58 78 58 46C58 11 82 -12 113 -12Z"></path></g><g transform="matrix(.013,0,0,-0.013,9.204,0)"><path d="M447 623H65C61 580 56 530 47 475H76C100 541 106 550 172 550H388C308 376 196 170 91 -1L98 -12L172 -2C268 204 360 408 455 611L447 623Z"></path></g><g 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<div>The properties of PU nanocomposites using 3 wt.% MWCNTs with and without modification.</div>

Advances in Polymer Technology

tab2

Table 2

Table 2: The Effect of Multiwalled Carbon Nanotubes on the Thermal Conductivity and Cellular Size of Polyurethane Foam 