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Analysis of institutional authors

Proenca, Mariana PaivaAuthor

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July 31, 2025
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Enhancing the electrical conductivity of TPU-TPU/SWCNT multilayered composites using melt multipliers

Publicated to: COMPOSITES COMMUNICATIONS. 57 102448- - 2025-08-01 57(), DOI: 10.1016/j.coco.2025.102448

Authors:

da Silva, MM; Ribeiro, R; Oliveira, AS; Proença, MP; Paiva, MC; Covas, JA
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Affiliations

Ctr Innovat Polymer Engn, P-4800058 Guimaraes, Portugal - Author
Queens Univ Belfast, Sch Mech & Aerosp Engn, Belfast BT9 5AH, North Ireland - Author
Univ Minho, Inst Polymers & Composites, Campus Azurem, P-4804533 Guimaraes, Portugal - Author
Univ Politecn Madrid, Dept Elect Fis, Ava Complutense 30, E-28040 Madrid, Spain - Author
Univ Politecn Madrid, ISOM, Ava Complutense 30, E-28040 Madrid, Spain - Author
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Abstract

Structuring and confining polymer layers have a profound influence on material properties and have been studied as a means of achieving tailored and multifunctional materials. In this work, single-walled carbon nanotubes (SWCNT) are incorporated into thermoplastic polyurethane (TPU) using melt-mixing techniques. An electrical percolation threshold at 0.6 wt.% SWCNT is achieved in melt-extruded filaments after pre-dispersing SWCNT in polypropylene glycol. Additionally, a prototype device composed of a series of small-scale layer multipliers is developed. The application of the baker's transformation enabled the extrusion of tapes with alternating layers of two different melts, TPU and composite TPU with SWCNT. These layered structures, obtained using an increasing number of melt multipliers, are characterized in terms of morphology, mechanical, and electrical properties. We demonstrate that layered tapes of TPU with TPU/SWCNT preserve the electrical conductivity of the TPU/SWCNT composite, at half SWCNT weight percentage, and the ductility of neat TPU.
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Keywords

AgglomerationCarbon nanotubesDispersionMelt multipliersMultilayered compositeMultilayered compositesPerformancPolymer nanocompositesSingle-walled carbon nanotubesThermoplastic polyurethane

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal COMPOSITES COMMUNICATIONS due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position 7/34, thus managing to position itself as a Q1 (Primer Cuartil), in the category Materials Science, Composites.

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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-26:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 2.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 2 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/93692/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 25
  • Downloads: 33
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Portugal; United Kingdom.

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Awards linked to the item

The authors acknowledge the Portuguese Fundac & atilde;o para a Ciencia e Tecnologia (FCT) for the funding through the Ph.D. grant with the reference 2020.05311.BD and through UID/05256: Instituto de Polimeros e Compositos (IPC/UM) . The authors acknowledge funding from the Spanish Ministerio de Ciencia, Innovacion y Universidades under the projects PID2020-117024GB-C42 and PID2023-150853NB-C32. This work has also made use of the Spanish ICTS Network MICRO-NANOFABS. The authors thank the team of Extrusion, Compounding and Advanced Materials, from the Centre for Innovation in Polymer Engineering (PIEP) , for the technical support provided with the microcompounder. The authors would also like to acknowledge Prof. Fernando Duarte and Prof. Sacha Mould for the support provided.
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