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Advanced 3D Printed Conductive Polymer Nanocomposites for Electromagnetic Shielding

2021· article· en· W4200393052 on OpenAlex
Milad Kamkar, Majed Amini, Saeed Ghaderi, Ahmadreza Ghafarkhah, Amirhossein Ahmadian Hosseini, Mohammad Arjmand

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venue2021 IEEE Sensors · 2021
Typearticle
Languageen
FieldMaterials Science
TopicElectromagnetic wave absorption materials
Canadian institutionsUniversity of British Columbia, Okanagan CampusUniversity of British Columbia
Fundersnot available
KeywordsElectromagnetic shieldingMaterials sciencePolylactic acidComposite materialEMIElectromagnetic interferenceShieldsElectrical conductorFused filament fabricationFabricationNanocompositePolymerElectronic engineering

Abstract

fetched live from OpenAlex

Herein, we produced carbon nanotube (CNT)-based polymeric filaments for fabrication of electromagnetic interference (EMI) shields with complex geometries. Thanks to the 3D printing technique, enabling us to fabricate EMI shields with complex geometries by computer aided design (CAD). In the first phase, polylactic acid (PLA), a biodegradable polymer, was melt-mixed with CNT at various loadings (0.5, 1.0, 2.0, and 3.0wt.%) using a twin-screw extruder to create conductive polymer nanocomposite filaments. Afterward, we compression molded the developed filaments to evaluate their electrical and EMI shielding properties. Our PLA/CNT3.0wt.% filaments exhibit outstanding EMI shielding as high as 23dB at a thickness of 1mm. In the last phase, we successfully 3D printed our custom-made filaments using fused deposition modeling (FDM) technique. We obtained appreciable EMI shielding results from the 3D printed samples (i.e., 15dB at a thickness of 1mm and 20 dB at a thickness of 3mm). The obtained results well corroborate the performance of our developed conductive polymer nanocomposites as meritorious substitutions for metallic shields.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.044
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0050.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.013
GPT teacher head0.258
Teacher spread0.244 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it