Rheological behavior and microstructure of AgBr nanoparticle/cetyltrimethylammonium bromide/potassium hydrogen phthalate wormlike micelles
Bibliographic record
Abstract
The rheological behavior and interaction between in-house prepared AgBr nanoparticles (NPs) and wormlike micelles (WLMs) were explored in this work. The AgBr NPs were synthesized by reacting aqueous AgNO3 with cetyltrimethylammonium bromide (CTAB) in a micellar system containing CTAB and potassium hydrogen phthalate (PPA) hydrotrope. The size, composition, and morphology of the NPs were characterized using dynamic light scattering, transmission electron microscopy (TEM), thermal gravimetry, and scanning electron microscopy. The TEM photographs revealed a double-layer of CTAB surrounding the NPs and captured the junctions between the NPs and the WLMs. The addition of CTAB-coated AgBr NPs to CTAB/PPA WLMs reduced the flow activation energy by 20% suggesting increased thermal resistance. The added NPs increased the shear viscosity of the WLMs at both 35 and 38 °C, specifically raising the zero-shear viscosity of the WLMs by 85% at these temperatures. The AgBr NP/CTAB/PPA WLMs exhibited a discernible improvement in the relaxation time at 35 °C. The enhanced thermal stability was repeatable after multiple thermal cycles, confirming the reversibility of the microstructures. The junction between the NPs and the WLMs reinforced the micellar structure and contributed to the increased shear viscosity and viscoelasticity of the WLMs.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".