Pore structure and adsorption properties of welan gum modified polyurethane
Bibliographic record
Abstract
Welan gum modified polyurethane (WMP) with different welan gum concentrations were synthesized at vacuum conditions. The average pore diameter, porosity, pore volume, contact angle, pore morphology, oil adsorption ratio and absorption energy of WMPs were investigated by nitrogen adsorption analysis (NAA), scanning electron microscope (SEM), energy disperse spectroscopy (EDX), and molecular simulation. The results demonstrated that pore structure is highly dependent on the welan gum content. Moreover, the number of dead-end pores in the WMP decreased more compared to inter-connected, passing, and closed pores. Simulation results showed that the adsorption properties of WMP increased with the increasing welan gum content at a certain level. Welan gum could change the pore shape and improve the irregularity degree of WMP. The gel shrinkage also improves in spite of the hydrogen-bonding interactions. The two parameters of Langmuir isotherms are 42.68 mg g −1 and 0.0245 l mg −1 , respectively. The gasoline adsorbability of WMP is smaller than that of diesel. Consequently, welan gum could improve the adsorption heat and the adsorbability of polyurethane.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".