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  4. Electroactive performance and cost evaluation of carbon nanotubes and carbon black as conductive fillers in self-healing shape memory polymers and other composites
 
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Electroactive performance and cost evaluation of carbon nanotubes and carbon black as conductive fillers in self-healing shape memory polymers and other composites

Publikationstyp
Journal Article
Publikationsdatum
2022-09-23
Sprache
English
Author
Orozco, Felipe 
Salvatore, Alex 
Sakulmankongsuk, Anchista 
Ribas Gomes, Diego orcid-logo
Pei, Yutao 
Araya-Hermosilla, Esteban Alejandro 
Pucci, Andrea 
Moreno-Villoslada, Ignacio 
Picchioni, Francesco 
Bose, Ranjita K. 
TORE-URI
http://hdl.handle.net/11420/14125
Enthalten in
Polymer 
Volume
260
Article Number
125365
Citation
Polymer 260: 125365 (2022)
Publisher DOI
10.1016/j.polymer.2022.125365
Scopus ID
2-s2.0-85138485677
Publisher
Elsevier Science
Multiwalled carbon nanotubes (MWCNT) and carbon black (CB) have been widely used as conductive fillers in electroactive polymer composites. MWCNT-based composites generally have lower resistivity and percolation thresholds, while CB-based ones are considerably cheaper. To balance these pros and cons, ternary composites (TCs) (polymer-MWCNT-CB) can be formulated. Here, we prepared electroactive MWCNT-CB TCs capable of self-healing and with shape memory properties, based on polyketones reversibly-crosslinked via Diels-Alder chemistry. Unexpectedly, the cheaper CB-rich formulations had lower resistivities, thus better electroactive self-healing and shape memory responses. Nonetheless, not all electroactive MWCNT-CB TCs have this clear cost-effectiveness. We evaluated the cost-performance of multiple reported MWCNT-CB TCs systems and found different general trends (positive, negative, and synergistic cost-efficiency relationships). Thus, the cost-effectiveness of these fillers (and their combination) greatly depends on each composite system and what it is intended for. This work includes the first systematic report on cost-performance of MWCNT and CB as conductive fillers.
Schlagworte
Cost-performance analysis
Electrical properties
Microstructural analysis
Polymer-matrix composites (PMCs)
DDC Class
530: Physik
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