Dielectric properties of modified montmorillonites suspensions in polydimethylsiloxane
ABSTRACT The dielectric characteristics of various modified montmorillonites suspensions in polydimethylsiloxane were investigated. Such materials are promising candidates as electrorheological fluids. The effect of small water content and temperature change in the dielectric spectra of suspensions...
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| Veröffentlicht in: | Journal of applied polymer science 2018-08, Vol.135 (32), p.n/a |
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| container_title | Journal of applied polymer science |
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| creator | Kuznetsov, Nikita M. Shevchenko, Vitaliy G. Stolyarova, Dina Yu Ozerin, Sergei A. Belousov, Sergey I. Chvalun, Sergei N. |
| description | ABSTRACT
The dielectric characteristics of various modified montmorillonites suspensions in polydimethylsiloxane were investigated. Such materials are promising candidates as electrorheological fluids. The effect of small water content and temperature change in the dielectric spectra of suspensions was studied. The electrical conductivity of suspensions rises with filler concentration. Conductivity also increases with frequency for all samples by 5–6 orders of magnitude. The frequency dependence of permittivity changes significantly with temperature and strongly depends on the type of modifier. The positions of relaxation transitions peaks observed in dielectric loss curves substantially depend on the type of filler and water content. Dielectric loss peaks shift to higher frequencies with temperature. Relaxation mechanism is related to filler and described by capacitor model. Based on X‐ray data a model of relaxation transitions is proposed. Also, the activation energy of dielectric relaxation is estimated. The activation energy is independent of filler concentration but is determined by the structural features of fillers in polymer medium. The prospects of dielectric spectroscopy for analyzing the layered nanosilicates structure in polymer solution are demonstrated. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46614. |
| doi_str_mv | 10.1002/app.46614 |
| format | Article |
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The dielectric characteristics of various modified montmorillonites suspensions in polydimethylsiloxane were investigated. Such materials are promising candidates as electrorheological fluids. The effect of small water content and temperature change in the dielectric spectra of suspensions was studied. The electrical conductivity of suspensions rises with filler concentration. Conductivity also increases with frequency for all samples by 5–6 orders of magnitude. The frequency dependence of permittivity changes significantly with temperature and strongly depends on the type of modifier. The positions of relaxation transitions peaks observed in dielectric loss curves substantially depend on the type of filler and water content. Dielectric loss peaks shift to higher frequencies with temperature. Relaxation mechanism is related to filler and described by capacitor model. Based on X‐ray data a model of relaxation transitions is proposed. Also, the activation energy of dielectric relaxation is estimated. The activation energy is independent of filler concentration but is determined by the structural features of fillers in polymer medium. The prospects of dielectric spectroscopy for analyzing the layered nanosilicates structure in polymer solution are demonstrated. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46614.</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/app.46614</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc</publisher><subject>Activation energy ; clay ; colloids ; Computational fluid dynamics ; Dependence ; Dielectric loss ; Dielectric properties ; Dielectric relaxation ; Electrical resistivity ; Electrorheological fluids ; Fillers ; Materials science ; Moisture content ; nanoparticles ; nanowires and nanocrystals ; Polydimethylsiloxane ; Polymers ; Spectrum analysis ; X‐ray</subject><ispartof>Journal of applied polymer science, 2018-08, Vol.135 (32), p.n/a</ispartof><rights>2018 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3344-9e0322c7d3a56eb1db20a54a94dce292e6afe8b32f76c9e78419fc48b3b5c8233</citedby><cites>FETCH-LOGICAL-c3344-9e0322c7d3a56eb1db20a54a94dce292e6afe8b32f76c9e78419fc48b3b5c8233</cites><orcidid>0000-0002-1241-3115</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fapp.46614$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fapp.46614$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27923,27924,45573,45574</link.rule.ids></links><search><creatorcontrib>Kuznetsov, Nikita M.</creatorcontrib><creatorcontrib>Shevchenko, Vitaliy G.</creatorcontrib><creatorcontrib>Stolyarova, Dina Yu</creatorcontrib><creatorcontrib>Ozerin, Sergei A.</creatorcontrib><creatorcontrib>Belousov, Sergey I.</creatorcontrib><creatorcontrib>Chvalun, Sergei N.</creatorcontrib><title>Dielectric properties of modified montmorillonites suspensions in polydimethylsiloxane</title><title>Journal of applied polymer science</title><description>ABSTRACT
The dielectric characteristics of various modified montmorillonites suspensions in polydimethylsiloxane were investigated. Such materials are promising candidates as electrorheological fluids. The effect of small water content and temperature change in the dielectric spectra of suspensions was studied. The electrical conductivity of suspensions rises with filler concentration. Conductivity also increases with frequency for all samples by 5–6 orders of magnitude. The frequency dependence of permittivity changes significantly with temperature and strongly depends on the type of modifier. The positions of relaxation transitions peaks observed in dielectric loss curves substantially depend on the type of filler and water content. Dielectric loss peaks shift to higher frequencies with temperature. Relaxation mechanism is related to filler and described by capacitor model. Based on X‐ray data a model of relaxation transitions is proposed. Also, the activation energy of dielectric relaxation is estimated. The activation energy is independent of filler concentration but is determined by the structural features of fillers in polymer medium. The prospects of dielectric spectroscopy for analyzing the layered nanosilicates structure in polymer solution are demonstrated. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46614.</description><subject>Activation energy</subject><subject>clay</subject><subject>colloids</subject><subject>Computational fluid dynamics</subject><subject>Dependence</subject><subject>Dielectric loss</subject><subject>Dielectric properties</subject><subject>Dielectric relaxation</subject><subject>Electrical resistivity</subject><subject>Electrorheological fluids</subject><subject>Fillers</subject><subject>Materials science</subject><subject>Moisture content</subject><subject>nanoparticles</subject><subject>nanowires and nanocrystals</subject><subject>Polydimethylsiloxane</subject><subject>Polymers</subject><subject>Spectrum analysis</subject><subject>X‐ray</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp1kMtOwzAQRS0EEuWx4A8isWKR1q848bIqT6kSXQBby3EmwpUTBzsV5O8xhC2rGc09M3d0EboieEkwpis9DEsuBOFHaEGwLHMuaHWMFkkjeSVlcYrOYtxjTEiBxQK93VpwYMZgTTYEP0AYLcTMt1nnG9taaFLTj50P1jnf2zGJ8RAH6KP1fcxsnw3eTY3tYHyfXLTOf-keLtBJq12Ey796jl7v7142j_n2-eFps97mhjHOcwmYUWrKhulCQE2ammJdcC15Y4BKCkK3UNWMtqUwEsqKE9kaniZ1YSrK2Dm6nu-m3z8OEEe194fQJ0tFMS-ZKDnBibqZKRN8jAFaNQTb6TApgtVPbCrFpn5jS-xqZj-tg-l_UK13u3njG8FUcQc</recordid><startdate>20180820</startdate><enddate>20180820</enddate><creator>Kuznetsov, Nikita M.</creator><creator>Shevchenko, Vitaliy G.</creator><creator>Stolyarova, Dina Yu</creator><creator>Ozerin, Sergei A.</creator><creator>Belousov, Sergey I.</creator><creator>Chvalun, Sergei N.</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-1241-3115</orcidid></search><sort><creationdate>20180820</creationdate><title>Dielectric properties of modified montmorillonites suspensions in polydimethylsiloxane</title><author>Kuznetsov, Nikita M. ; Shevchenko, Vitaliy G. ; Stolyarova, Dina Yu ; Ozerin, Sergei A. ; Belousov, Sergey I. ; Chvalun, Sergei N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3344-9e0322c7d3a56eb1db20a54a94dce292e6afe8b32f76c9e78419fc48b3b5c8233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Activation energy</topic><topic>clay</topic><topic>colloids</topic><topic>Computational fluid dynamics</topic><topic>Dependence</topic><topic>Dielectric loss</topic><topic>Dielectric properties</topic><topic>Dielectric relaxation</topic><topic>Electrical resistivity</topic><topic>Electrorheological fluids</topic><topic>Fillers</topic><topic>Materials science</topic><topic>Moisture content</topic><topic>nanoparticles</topic><topic>nanowires and nanocrystals</topic><topic>Polydimethylsiloxane</topic><topic>Polymers</topic><topic>Spectrum analysis</topic><topic>X‐ray</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kuznetsov, Nikita M.</creatorcontrib><creatorcontrib>Shevchenko, Vitaliy G.</creatorcontrib><creatorcontrib>Stolyarova, Dina Yu</creatorcontrib><creatorcontrib>Ozerin, Sergei A.</creatorcontrib><creatorcontrib>Belousov, Sergey I.</creatorcontrib><creatorcontrib>Chvalun, Sergei N.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kuznetsov, Nikita M.</au><au>Shevchenko, Vitaliy G.</au><au>Stolyarova, Dina Yu</au><au>Ozerin, Sergei A.</au><au>Belousov, Sergey I.</au><au>Chvalun, Sergei N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dielectric properties of modified montmorillonites suspensions in polydimethylsiloxane</atitle><jtitle>Journal of applied polymer science</jtitle><date>2018-08-20</date><risdate>2018</risdate><volume>135</volume><issue>32</issue><epage>n/a</epage><issn>0021-8995</issn><eissn>1097-4628</eissn><abstract>ABSTRACT
The dielectric characteristics of various modified montmorillonites suspensions in polydimethylsiloxane were investigated. Such materials are promising candidates as electrorheological fluids. The effect of small water content and temperature change in the dielectric spectra of suspensions was studied. The electrical conductivity of suspensions rises with filler concentration. Conductivity also increases with frequency for all samples by 5–6 orders of magnitude. The frequency dependence of permittivity changes significantly with temperature and strongly depends on the type of modifier. The positions of relaxation transitions peaks observed in dielectric loss curves substantially depend on the type of filler and water content. Dielectric loss peaks shift to higher frequencies with temperature. Relaxation mechanism is related to filler and described by capacitor model. Based on X‐ray data a model of relaxation transitions is proposed. Also, the activation energy of dielectric relaxation is estimated. The activation energy is independent of filler concentration but is determined by the structural features of fillers in polymer medium. The prospects of dielectric spectroscopy for analyzing the layered nanosilicates structure in polymer solution are demonstrated. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46614.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/app.46614</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-1241-3115</orcidid></addata></record> |
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| subjects | Activation energy clay colloids Computational fluid dynamics Dependence Dielectric loss Dielectric properties Dielectric relaxation Electrical resistivity Electrorheological fluids Fillers Materials science Moisture content nanoparticles nanowires and nanocrystals Polydimethylsiloxane Polymers Spectrum analysis X‐ray |
| title | Dielectric properties of modified montmorillonites suspensions in polydimethylsiloxane |
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