EFFECT OF PLASTICIZER EXTRACTION BY JET FUEL ON A NITRILE HOSE COMPOUND
Why this work is in the frame
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Bibliographic record
Abstract
ABSTRACT Seven ester plasticizers were evaluated in a reference acrylonitrile–butadiene rubber (NBR) fuel hose compound with respect to extractability resistance to jet fuel. Plasticizers differed primarily in chemical structure (polarity) and molecular weight (monomeric vs polymeric). Plasticizer addition led to lower viscosity, maximum torque, modulus, tensile strength, and enhanced low temperature properties. Exposure to jet fuel caused plasticizer extraction resulting in compound softening due to absorption of the aromatic components in the fuel. The glass transition temperature shifted toward lower temperatures. Extraction resistance is enhanced by optimizing polymer–plasticizer compatibility and by using a higher molecular weight plasticizer. The use of the polymeric plasticizer A-8600 lowers the loss of other fugitive plasticizers, indicating the presence of specific plasticizer–plasticizer interactions. Of the monomeric and polymeric plasticizers, trioctyl trimellitate and A-8600, respectively, display the best combination of plasticizing ability and extraction resistance.
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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 it