Multistage Mechanical Activation of Multilayer Carbon Nanotubes in Creation of Electric Heaters with Self-Regulating Temperature
The article deals with research related to the issues of nanomodification of elastomers as a basis of electric heaters with self-regulating temperature. The effect of multistage mechanical activation of multilayer carbon nanotubes (MCNTs) with graphite on the uniformity of the temperature field dist...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-08-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/16/4654 |
| _version_ | 1797523081970843648 |
|---|---|
| author | Alexandr Viktorovich Shchegolkov Sung-Hwan Jang Aleksei Viktorovich Shchegolkov Yuri Viktorovich Rodionov Olga Anatolievna Glivenkova |
| author_facet | Alexandr Viktorovich Shchegolkov Sung-Hwan Jang Aleksei Viktorovich Shchegolkov Yuri Viktorovich Rodionov Olga Anatolievna Glivenkova |
| author_sort | Alexandr Viktorovich Shchegolkov |
| collection | DOAJ |
| description | The article deals with research related to the issues of nanomodification of elastomers as a basis of electric heaters with self-regulating temperature. The effect of multistage mechanical activation of multilayer carbon nanotubes (MCNTs) with graphite on the uniformity of the temperature field distribution on the surface of nanomodified organosilicon elastomer has been studied. The influence of the stages of mechanical action on the parameters of MCNTs is revealed. It has been ascertained that for the MCNTs/graphite bulk material, which has passed the stage of mechanical activation in the vortex layer apparatus, a more uniform distribution of the temperature field and an increase in temperature to 57.1 °C at the supply voltage of 100 V are typical. The distribution of the temperature field in the centrifugal paddle mixer “WF-20B” for mixing MCNTs with graphite has been investigated. It has been found that there is also a thermal effect in addition to the mechanical action on the MCNTs in the paddle mixer “WF-20B”. The thermal effect is associated with the transfer of the mechanical energy of friction of the binary mixture MCNTs/graphite on the paddle and the walls of the vessel. The multiplicity of the starting current I<sub>p</sub> to the nominal I<sub>n</sub> (I<sub>p</sub>/I<sub>n</sub>) is 5 for the first sample, 7.5 for the second sample, and 10 for the third sample at the supply voltage of 100 V. The effect of reducing the starting current and stabilizing the temperature indicates the presence of self-regulation, which is expressed in maintaining a certain level of temperature. |
| first_indexed | 2024-03-10T08:38:24Z |
| format | Article |
| id | doaj.art-b5fc998336ca4bec9e142cd5ba6bb19a |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T08:38:24Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b5fc998336ca4bec9e142cd5ba6bb19a2023-11-22T08:30:47ZengMDPI AGMaterials1996-19442021-08-011416465410.3390/ma14164654Multistage Mechanical Activation of Multilayer Carbon Nanotubes in Creation of Electric Heaters with Self-Regulating TemperatureAlexandr Viktorovich Shchegolkov0Sung-Hwan Jang1Aleksei Viktorovich Shchegolkov2Yuri Viktorovich Rodionov3Olga Anatolievna Glivenkova4Department of Technology and Methods of Nanoproducts Manufacturing, Tambov State Technical University, 392000 Tambov, RussiaDepartment of Civil and Environmental Engineering, Hanyang University ERICA, Ansan 15588, KoreaDepartment of Technology and Methods of Nanoproducts Manufacturing, Tambov State Technical University, 392000 Tambov, RussiaDepartment of Mechanics and Engineering Graphics, Tambov State Technical University, 392000 Tambov, RussiaDepartment of Foreign Languages and Professional Communication, Tambov State Technical University, 392000 Tambov, RussiaThe article deals with research related to the issues of nanomodification of elastomers as a basis of electric heaters with self-regulating temperature. The effect of multistage mechanical activation of multilayer carbon nanotubes (MCNTs) with graphite on the uniformity of the temperature field distribution on the surface of nanomodified organosilicon elastomer has been studied. The influence of the stages of mechanical action on the parameters of MCNTs is revealed. It has been ascertained that for the MCNTs/graphite bulk material, which has passed the stage of mechanical activation in the vortex layer apparatus, a more uniform distribution of the temperature field and an increase in temperature to 57.1 °C at the supply voltage of 100 V are typical. The distribution of the temperature field in the centrifugal paddle mixer “WF-20B” for mixing MCNTs with graphite has been investigated. It has been found that there is also a thermal effect in addition to the mechanical action on the MCNTs in the paddle mixer “WF-20B”. The thermal effect is associated with the transfer of the mechanical energy of friction of the binary mixture MCNTs/graphite on the paddle and the walls of the vessel. The multiplicity of the starting current I<sub>p</sub> to the nominal I<sub>n</sub> (I<sub>p</sub>/I<sub>n</sub>) is 5 for the first sample, 7.5 for the second sample, and 10 for the third sample at the supply voltage of 100 V. The effect of reducing the starting current and stabilizing the temperature indicates the presence of self-regulation, which is expressed in maintaining a certain level of temperature.https://www.mdpi.com/1996-1944/14/16/4654percolationmultilayer carbon nanotubes (MCNTs): multistage mechanical activationheat releasemodificationelastomersself-regulating temperature |
| spellingShingle | Alexandr Viktorovich Shchegolkov Sung-Hwan Jang Aleksei Viktorovich Shchegolkov Yuri Viktorovich Rodionov Olga Anatolievna Glivenkova Multistage Mechanical Activation of Multilayer Carbon Nanotubes in Creation of Electric Heaters with Self-Regulating Temperature Materials percolation multilayer carbon nanotubes (MCNTs): multistage mechanical activation heat release modification elastomers self-regulating temperature |
| title | Multistage Mechanical Activation of Multilayer Carbon Nanotubes in Creation of Electric Heaters with Self-Regulating Temperature |
| title_full | Multistage Mechanical Activation of Multilayer Carbon Nanotubes in Creation of Electric Heaters with Self-Regulating Temperature |
| title_fullStr | Multistage Mechanical Activation of Multilayer Carbon Nanotubes in Creation of Electric Heaters with Self-Regulating Temperature |
| title_full_unstemmed | Multistage Mechanical Activation of Multilayer Carbon Nanotubes in Creation of Electric Heaters with Self-Regulating Temperature |
| title_short | Multistage Mechanical Activation of Multilayer Carbon Nanotubes in Creation of Electric Heaters with Self-Regulating Temperature |
| title_sort | multistage mechanical activation of multilayer carbon nanotubes in creation of electric heaters with self regulating temperature |
| topic | percolation multilayer carbon nanotubes (MCNTs): multistage mechanical activation heat release modification elastomers self-regulating temperature |
| url | https://www.mdpi.com/1996-1944/14/16/4654 |
| work_keys_str_mv | AT alexandrviktorovichshchegolkov multistagemechanicalactivationofmultilayercarbonnanotubesincreationofelectricheaterswithselfregulatingtemperature AT sunghwanjang multistagemechanicalactivationofmultilayercarbonnanotubesincreationofelectricheaterswithselfregulatingtemperature AT alekseiviktorovichshchegolkov multistagemechanicalactivationofmultilayercarbonnanotubesincreationofelectricheaterswithselfregulatingtemperature AT yuriviktorovichrodionov multistagemechanicalactivationofmultilayercarbonnanotubesincreationofelectricheaterswithselfregulatingtemperature AT olgaanatolievnaglivenkova multistagemechanicalactivationofmultilayercarbonnanotubesincreationofelectricheaterswithselfregulatingtemperature |