Electrical conductivity under shear flow of molten polyethylene filled with carbon nanotubes: Experimental and modeling
This work aims to describe the conductivity evolution of polymer composites (polyethylene filled with carbon nanotubes) during a shearing deformation. Rheo‐electric measurements were carried out to observe the shear‐induced fillers network modification. Extended steady shear forces the conductivity...
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| Veröffentlicht in: | Polymer engineering and science 2021-04, Vol.61 (4), p.1129-1138 |
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| container_title | Polymer engineering and science |
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| creator | Collet, Anatole Serghei, Anatoli Lhost, Olivier Trolez, Yves Cassagnau, Philippe Fulchiron, René |
| description | This work aims to describe the conductivity evolution of polymer composites (polyethylene filled with carbon nanotubes) during a shearing deformation. Rheo‐electric measurements were carried out to observe the shear‐induced fillers network modification. Extended steady shear forces the conductivity to evolve asymptotically to a steady level attesting to an equilibrium between structuring and break up mechanisms in the melted polymer. Numerous experiments were conducted to cover a wide range of shear rate from 0.05 to 10 s−1 and for carbon nanotubes concentrations between 1.3 and 2.9 vol%. A model is proposed to predict the conductivity evolution under shear deformation using a simple kinetic equation inserted in a percolation law. Structuring parameter was found to be solely dependent on the temperature whereas shear induced modification terms were found to be mostly driven by the shear rate and the fillers content. |
| doi_str_mv | 10.1002/pen.25651 |
| format | Article |
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Rheo‐electric measurements were carried out to observe the shear‐induced fillers network modification. Extended steady shear forces the conductivity to evolve asymptotically to a steady level attesting to an equilibrium between structuring and break up mechanisms in the melted polymer. Numerous experiments were conducted to cover a wide range of shear rate from 0.05 to 10 s−1 and for carbon nanotubes concentrations between 1.3 and 2.9 vol%. A model is proposed to predict the conductivity evolution under shear deformation using a simple kinetic equation inserted in a percolation law. 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Rheo‐electric measurements were carried out to observe the shear‐induced fillers network modification. Extended steady shear forces the conductivity to evolve asymptotically to a steady level attesting to an equilibrium between structuring and break up mechanisms in the melted polymer. Numerous experiments were conducted to cover a wide range of shear rate from 0.05 to 10 s−1 and for carbon nanotubes concentrations between 1.3 and 2.9 vol%. A model is proposed to predict the conductivity evolution under shear deformation using a simple kinetic equation inserted in a percolation law. Structuring parameter was found to be solely dependent on the temperature whereas shear induced modification terms were found to be mostly driven by the shear rate and the fillers content.</description><subject>Analysis</subject><subject>Carbon</subject><subject>Carbon nanotubes</subject><subject>conducting polymers</subject><subject>Electric properties</subject><subject>Electrical conductivity</subject><subject>Electrical resistivity</subject><subject>Engineering models</subject><subject>Engineering Sciences</subject><subject>Evolution</subject><subject>Fillers</subject><subject>Kinetic equations</subject><subject>Materials</subject><subject>Mechanical properties</subject><subject>melt</subject><subject>modeling</subject><subject>nanocomposites</subject><subject>Nanotubes</subject><subject>Percolation</subject><subject>Physics</subject><subject>Polyethylene</subject><subject>Polyethylenes</subject><subject>Polymer matrix composites</subject><subject>Polymers</subject><subject>Rheology</subject><subject>shear</subject><subject>Shear deformation</subject><subject>Shear flow</subject><subject>Shear forces</subject><subject>Shear rate</subject><subject>Temperature dependence</subject><issn>0032-3888</issn><issn>1548-2634</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>N95</sourceid><recordid>eNp10l1r2zAUBmAzNljW7WL_QDAYFOZUH7Zj7y6UbC2EbezjWsjScayiSJ4kN_W_nzKPskCKwQbznBfp5WTZW4KXBGN6NYBd0rIqybNsQcqizmnFiufZAmNGc1bX9cvsVQh3OFlWNovssDEgo9dSGCSdVaOM-l7HCY1WgUehB-FRZ9wBuQ7tnYlg0eDMBLGfDFhAnTYGFDro2CMpfOssssK6OLYQPqLNwwBe78HGlC-sShEKjLa719mLTpgAb_59L7JfnzY_r2_y7dfPt9frbS4rgkneQLlSlCrcENkRwQCzVdHVK8lWDS0LJVpRqBaXtZACN4IA6ToKBAsKBSWqZBfZ5ZzbC8OHdBThJ-6E5jfrLT_-w6woKlaRe5Lsu9kO3v0eIUR-50Zv0_E4LXGzoqRMrT2qnTDAte1c9ELudZB8XVWUFanXY1Z-Ru1SY14YZyHVBqd-ecanR8Fey7MD708GkonwEHdiDIGfwsun4e2P76f2w3-2HYO2ENIr6F0fwzxyLlp6F4KH7rFhgvlxHXlaR_53HZO9mu0hXWR6GvJvmy_zxB9D4N5j</recordid><startdate>202104</startdate><enddate>202104</enddate><creator>Collet, Anatole</creator><creator>Serghei, Anatoli</creator><creator>Lhost, Olivier</creator><creator>Trolez, Yves</creator><creator>Cassagnau, Philippe</creator><creator>Fulchiron, René</creator><general>John Wiley & Sons, Inc</general><general>Society of Plastics Engineers, Inc</general><general>Blackwell Publishing Ltd</general><general>Wiley-Blackwell</general><scope>AAYXX</scope><scope>CITATION</scope><scope>N95</scope><scope>XI7</scope><scope>ISR</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-7714-9298</orcidid><orcidid>https://orcid.org/0000-0001-8217-8635</orcidid><orcidid>https://orcid.org/0000-0002-6656-850X</orcidid><orcidid>https://orcid.org/0000-0002-7109-1400</orcidid></search><sort><creationdate>202104</creationdate><title>Electrical conductivity under shear flow of molten polyethylene filled with carbon nanotubes: Experimental and modeling</title><author>Collet, Anatole ; 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| ispartof | Polymer engineering and science, 2021-04, Vol.61 (4), p.1129-1138 |
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| source | Wiley Online Library All Journals |
| subjects | Analysis Carbon Carbon nanotubes conducting polymers Electric properties Electrical conductivity Electrical resistivity Engineering models Engineering Sciences Evolution Fillers Kinetic equations Materials Mechanical properties melt modeling nanocomposites Nanotubes Percolation Physics Polyethylene Polyethylenes Polymer matrix composites Polymers Rheology shear Shear deformation Shear flow Shear forces Shear rate Temperature dependence |
| title | Electrical conductivity under shear flow of molten polyethylene filled with carbon nanotubes: Experimental and modeling |
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