Dielectric elastomers based on SEBS gel: The impact of adding kraft lignin on electro-mechanical performance
Thermoplastic elastomer gels based on styrenic triblock copolymers have been increasingly used as dielectric elastomers, particularly due to the possibility of tailoring their properties based on their composition. However, these materials have a low relative permittivity, primarily attributed to th...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Budapest University of Technology
2024-06-01
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| Series: | eXPRESS Polymer Letters |
| Subjects: | |
| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0012904&mi=cd |
| _version_ | 1827288513219919872 |
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| author | Rogerio Ramos de Sousa Junior Guilherme Elias Saltarelli Garcia Leonardo Dalseno Antonino Júlia Rocha Gouveia Demetrio Jackson dos Santos Danilo Justino Carastan |
| author_facet | Rogerio Ramos de Sousa Junior Guilherme Elias Saltarelli Garcia Leonardo Dalseno Antonino Júlia Rocha Gouveia Demetrio Jackson dos Santos Danilo Justino Carastan |
| author_sort | Rogerio Ramos de Sousa Junior |
| collection | DOAJ |
| description | Thermoplastic
elastomer gels based on styrenic triblock copolymers have been increasingly
used as dielectric elastomers, particularly due to the possibility of tailoring
their properties based on their composition. However, these materials have a
low relative permittivity, primarily attributed to their low dipole moment.
Consequently, this characteristic poses a challenge for their application as
dielectric elastomers. In this work, we aim to assess the impact of adding
kraft lignin on the dielectric properties of thermoplastic elastomer gels.
Additionally, we investigate the effects of kraft lignin dispersion on their
viscoelastic and mechanical properties. For this purpose, we used two types of
kraft lignin: acidic and alkaline (ac-KL and alk-KL). The alk-KL demonstrated
higher dispersibility in the polymer, mainly attributed to the deprotonation of
its structure during its production process. As a result, the dielectric
elastomer with alk-KL showed a 50% increase in relative permittivity compared
to the pristine polymer without compromising its mechanical and viscoelastic
properties. Moreover, these samples demonstrated a greater actuation strain
capability in response to an electrical stimulus. Thus, the incorporation of
lignin demonstrates promise as a valuable reinforcement in the development of
advanced dielectric materials, enhancing their electro-mechanical performance. |
| first_indexed | 2024-04-24T11:32:01Z |
| format | Article |
| id | doaj.art-70284eb6fde344f292887732088a75bb |
| institution | Directory Open Access Journal |
| issn | 1788-618X |
| language | English |
| last_indexed | 2024-04-24T11:32:01Z |
| publishDate | 2024-06-01 |
| publisher | Budapest University of Technology |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj.art-70284eb6fde344f292887732088a75bb2024-04-10T08:20:28ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2024-06-0118656157410.3144/expresspolymlett.2024.42Dielectric elastomers based on SEBS gel: The impact of adding kraft lignin on electro-mechanical performanceRogerio Ramos de Sousa JuniorGuilherme Elias Saltarelli GarciaLeonardo Dalseno AntoninoJúlia Rocha GouveiaDemetrio Jackson dos SantosDanilo Justino CarastanThermoplastic elastomer gels based on styrenic triblock copolymers have been increasingly used as dielectric elastomers, particularly due to the possibility of tailoring their properties based on their composition. However, these materials have a low relative permittivity, primarily attributed to their low dipole moment. Consequently, this characteristic poses a challenge for their application as dielectric elastomers. In this work, we aim to assess the impact of adding kraft lignin on the dielectric properties of thermoplastic elastomer gels. Additionally, we investigate the effects of kraft lignin dispersion on their viscoelastic and mechanical properties. For this purpose, we used two types of kraft lignin: acidic and alkaline (ac-KL and alk-KL). The alk-KL demonstrated higher dispersibility in the polymer, mainly attributed to the deprotonation of its structure during its production process. As a result, the dielectric elastomer with alk-KL showed a 50% increase in relative permittivity compared to the pristine polymer without compromising its mechanical and viscoelastic properties. Moreover, these samples demonstrated a greater actuation strain capability in response to an electrical stimulus. Thus, the incorporation of lignin demonstrates promise as a valuable reinforcement in the development of advanced dielectric materials, enhancing their electro-mechanical performance.http://www.expresspolymlett.com/letolt.php?file=EPL-0012904&mi=cd thermoplastic elastomer block copolymer electroactive polymer dielectric property artificial muscle |
| spellingShingle | Rogerio Ramos de Sousa Junior Guilherme Elias Saltarelli Garcia Leonardo Dalseno Antonino Júlia Rocha Gouveia Demetrio Jackson dos Santos Danilo Justino Carastan Dielectric elastomers based on SEBS gel: The impact of adding kraft lignin on electro-mechanical performance eXPRESS Polymer Letters thermoplastic elastomer block copolymer electroactive polymer dielectric property artificial muscle |
| title | Dielectric elastomers based on SEBS gel: The impact of adding kraft lignin on electro-mechanical performance |
| title_full | Dielectric elastomers based on SEBS gel: The impact of adding kraft lignin on electro-mechanical performance |
| title_fullStr | Dielectric elastomers based on SEBS gel: The impact of adding kraft lignin on electro-mechanical performance |
| title_full_unstemmed | Dielectric elastomers based on SEBS gel: The impact of adding kraft lignin on electro-mechanical performance |
| title_short | Dielectric elastomers based on SEBS gel: The impact of adding kraft lignin on electro-mechanical performance |
| title_sort | dielectric elastomers based on sebs gel the impact of adding kraft lignin on electro mechanical performance |
| topic | thermoplastic elastomer block copolymer electroactive polymer dielectric property artificial muscle |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0012904&mi=cd |
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