| polymer_type |
<app.db.schema.PolymerType object at 0x7b182927dc40>
|
| morphology |
<app.db.schema.Morphology object at 0x7b182927ebd0>
|
| source |
<app.db.schema.LiteratureSource object at 0x7b182927f650>
|
| chemical_loads |
(<app.db.schema.ChemicalLoad object at 0x7b182927f530>)
(<app.db.schema.ChemicalLoad object at 0x7b182927f500>)
|
| matrix_entries |
(<app.db.schema.MatrixComposition object at 0x7b182927caa0>)
(<app.db.schema.MatrixComposition object at 0x7b182927cce0>)
(<app.db.schema.MatrixComposition object at 0x7b182927e510>)
(<app.db.schema.MatrixComposition object at 0x7b182927cb00>)
(<app.db.schema.MatrixComposition object at 0x7b182927d6a0>)
(<app.db.schema.MatrixComposition object at 0x7b182927cc80>)
|
| id |
1 |
| polymer_type_id |
1 |
| size_major_axis_nm |
50000.0 |
| size_minor_axis_nm |
30000.0 |
| morphology_id |
1 |
| crystallinity_pct |
45.0 |
| surface_area_m2_per_g |
0.8 |
| zeta_potential_mv |
-15.0 |
| hydrophobicity_log_d |
3.2 |
| surface_functionalization |
Oxidised surface from environmental weathering; carbonyl and hydroxyl groups detected. |
| protein_corona_potential |
|
| origin |
Secondary |
| weathering_state |
3 |
| degradability_notes |
PE is highly persistent; estimated half-life >100 years in marine environments. |
| density_g_per_cm3 |
0.95 |
| reference_material_id |
|
| detection_method |
µRaman spectroscopy |
| refractive_index |
1.51 |
| reliability_rating |
reliable |
| detection_method_notes |
PE is readily detected by µRaman, FTIR, and Py-GC/MS. Multiple characteristic markers confirm signal with high confidence. |
| source_id |
3 |
| notes |
Typical secondary PE fragment representative of urban dust samples. |
| created_at |
2026-05-16 05:30:24.903687 |
| updated_at |
2026-05-16 05:30:24.903690 |