Molecular Dynamics Simulation of the Interfacial Effect of Cellulose Ether in Sandy Soil Improvement
Bibliographic record
Abstract
Due to their loose physical structure and low cohesion, sandy soil slopes are highly susceptible to rainfall erosion under natural conditions, leading to soil erosion and slope instability. The traditional slope protection methods are characterized by high cost, high environmental impact, and complicated construction, which make it difficult to meet the needs of ecological restoration and economic efficiency. Cellulose ether, as a natural cellulose modification product, has high adhesive strength, good water retention, and ecological and environmental protection and has a broad prospect in soil improvement and slope protection. However, its microscopic adsorption mechanism on the surface of soil particles, especially the adsorption behavior under different water content and temperature conditions, has not been fully understood. In this paper, a ternary composite model of "cellulose ether-water-silica" was constructed by molecular dynamics (MD) simulation, and the interfacial interactions between cellulose ether and the sandy soil surface were analyzed by calculating the adsorption energy, the number of hydrogen bonds, and the radial distribution function (RDF). The results showed that (1) the increase of water content significantly weakened the adsorption energy and the number of hydrogen bonds between cellulose ether and the sandy soil surface, and the sensitivity of different types of cellulose ether to the change of water content was different; (2) the number and structure of functional groups play a key role in the adsorption performance of cellulose ether, and the higher the hydroxyl content, the stronger the adsorption capacity; and (3) the temperature has a significant effect on the adsorption behavior of cellulose ether, and different cellulose ethers exhibited distinct temperature response characteristics. This study provides a theoretical basis and technical reference for the molecular design of ecological protective materials for sandy slopes.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".