Examination of water uptake performance and mechanical properties of PLA/flax fiber biocomposites with the coupling agent
Why this work is in the frame
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Bibliographic record
Abstract
The paper reports, the effect of water sorption on the microstructural and flexural properties of the flax fiber/ polylactic acid (PLA) biocomposites compared to the composites with maleic anhydride (MAH) as coupling agents and alkali treatment. In the current study, five different biocomposites which are 15 % wt. flax/PLA, 25 % wt. flax/PLA as control group and15 % wt. flax/PLA, 25 % wt. flax /PLA, and 35% wt. flax / PLA with 5 % wt. MAH was produced. Ten different soaking times were studied to understand the water absorption behavior of the biocomposites. To investigate mechanical properties of the biocomposites impact test was applied on the dry and 750 h, 1850 h water sorption composites. A three-point bending test was performed on the dry and 1850 h water sorption biocomposites to determine flexural properties. Short flax fiber-reinforced PLA matrix biocomposites were compounded using extrusion and manufactured by injection molding. Flax fiber surface was treated using sodium hydroxy solution to advance the interface interaction between fiber-matrix and surface performance of the fiber and matrix. According to the results, alkali treatment improved the water gain resistance of the composites since its enhancement of the interfacial bonding. Alkali-treated composites with maleic anhydride showed the better impact and flexural strength than composites without alkali-treated after 1850 h water sorption.
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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