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Record W3081144827 · doi:10.1021/acsapm.0c00698

Thermally-Degradable Thermoset Adhesive Based on a Cellulose Nanocrystals/Epoxy Nanocomposite

2020· article· en· W3081144827 on OpenAlex

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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueACS Applied Polymer Materials · 2020
Typearticle
Languageen
FieldMaterials Science
TopicAdvanced Cellulose Research Studies
Canadian institutionsNational Institute for Nanotechnology
FundersInnotech AlbertaAlberta InnovatesAlberta-Pacific Forest Industries
KeywordsEpoxyAdhesiveMaterials scienceThermosetting polymerNanocompositeComposite materialCellulosePolymerDegradation (telecommunications)X-ray photoelectron spectroscopyChemical engineering

Abstract

fetched live from OpenAlex

For high-value components, reusability is often an important design consideration. For adhesively joined parts, the disassembly mechanism can be a key factor, and in some cases the thermal degradability of adhesives determines the reusability and recyclability of the components. After use, components that can be easily separated are generally more easily reused, but this requires controlled and well-understood adhesive degradation. Here, polymer nanocomposites based on epoxy resin and cellulose nanocrystals (CNCs) were fabricated, and their properties were examined as degradable adhesives. The distribution of CNCs within the epoxy resin was investigated by electron microscopy and mass spectroscopy. By incorporating CNCs into epoxy matrices, the shear strength of nanocomposites was improved by 31% and the effective thermal degradation temperature was reduced by 40 °C. Additionally, chemical analysis by X-ray photoelectron spectroscopy showed that sulfonate groups on the surface of CNCs play a critical role over improving the mechanical properties, while thermally induced breakage of these bonds mediates the thermal degradation of the nanocomposite.

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 categoriesInsufficient payload (model declined to judge)
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 score0.009
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.003

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 head0.020
GPT teacher head0.250
Teacher spread0.230 · 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