Evidence map›Paper›PMID 42655254›Full record

ArticlePolymers2026

CNT Localization and Network Formation in High-Performance PEEK/PEI Blends and Its Effect on Electrical Conductivity.

Behnam Khaledi, Nicole R Demarquette, Eric David

Abstract read
In one paragraph

Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Behnam KhalediDepartment of Mechanical Engineering, École de Technologie Supérieure, Montreal, QC H3C 1K3, Canada.ORCID 0000-0002-1665-3917
Nicole R DemarquetteDepartment of Mechanical Engineering, École de Technologie Supérieure, Montreal, QC H3C 1K3, Canada.ORCID 0000-0002-8935-5443
Eric DavidDepartment of Mechanical Engineering, École de Technologie Supérieure, Montreal, QC H3C 1K3, Canada.ORCID 0000-0002-0886-2890

Funding

NanoXplore (Canada) The grant number is not availableNatural Sciences and Engineering Research Council of Canada (NSERC) 456414132Quebec's Advanced Materials Research and Innovation Hub (PRIMA) The grant number is not available
6 · The paper itself

Abstract

High-performance thermoplastics are gaining increasing attention for space applications. However, the extreme lunar environment requires multifunctional materials that combine electrical conductivity for electrostatic charge dissipation with low thermal conductivity for thermal insulation. One promising strategy to achieve this balance is through conductive polymer nanocomposites with controlled morphology. In this study, the localization, migration, and network formation of carbon nanotubes (CNTs) in two-phase blends of polyetheretherketone/polyetherimide (PEEK/PEI) were systematically investigated to establish the relationships between processing, morphology, and the resulting electrical and thermal properties. Despite the strong thermodynamic preference of CNTs for the PEI phase, both PEEK/CNT and PEEK/PEI/CNT nanocomposites exhibit similar electrical percolation thresholds (0.25-0.5 wt.%), attributed to spatial confinement arising from PEEK crystallinity in PEEK/CNT and from phase-selective localization in the blend system, which limits the effective volume available for CNT dispersion. Morphological characterization confirmed co-continuous blend structures and complete CNT migration into the PEI phase in the PEEK/PEI/CNT system, while rheological studies revealed percolated networks forming below the electrical percolation threshold. Processing conditions strongly impacted conductivity: short mixing times preserved interconnected CNT agglomerates and enhanced conductivity, whereas prolonged mixing promoted dispersion but destroyed conductive pathways. Furthermore, thermal annealing induced agglomeration and weakened networks in PEEK/CNT systems but had a negligible effect on PEEK/PEI/CNT composites due to improved CNT-PEI compatibility. Finally, thermal conductivity remained low across all systems, maintaining the material's insulating performance for the harsh thermal environment of the Moon.

Indexed as

conductive nanocompositedouble percolationPEEKpolymer blendpolymer nanocompositespace-grade polymer

Identifiers

PMID42655254
PMCPMC13516718

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.