| polymer_type |
<app.db.schema.PolymerType object at 0x71ff9077bfb0>
|
| morphology |
<app.db.schema.Morphology object at 0x71ff90778530>
|
| source |
<app.db.schema.LiteratureSource object at 0x71ff906089b0>
|
| chemical_loads |
(<app.db.schema.ChemicalLoad object at 0x71ff90779730>)
|
| matrix_entries |
(<app.db.schema.MatrixComposition object at 0x71ff9077bf50>)
(<app.db.schema.MatrixComposition object at 0x71ff90778dd0>)
(<app.db.schema.MatrixComposition object at 0x71ff90779a30>)
(<app.db.schema.MatrixComposition object at 0x71ff90778bc0>)
(<app.db.schema.MatrixComposition object at 0x71ff907788c0>)
(<app.db.schema.MatrixComposition object at 0x71ff907785f0>)
|
| id |
2 |
| polymer_type_id |
5 |
| size_major_axis_nm |
120000.0 |
| size_minor_axis_nm |
15000.0 |
| morphology_id |
2 |
| crystallinity_pct |
55.0 |
| surface_area_m2_per_g |
1.2 |
| zeta_potential_mv |
-22.0 |
| hydrophobicity_log_d |
2.8 |
| surface_functionalization |
Smooth surface; some evidence of enzymatic hydrolysis at ends. |
| protein_corona_potential |
|
| origin |
Secondary |
| weathering_state |
2 |
| degradability_notes |
PET undergoes slow hydrolysis; half-life estimated at decades in terrestrial environments. |
| density_g_per_cm3 |
1.38 |
| reference_material_id |
|
| detection_method |
FTIR spectroscopy |
| refractive_index |
1.57 |
| reliability_rating |
reduced |
| detection_method_notes |
KOH digestion may hydrolyse PET, potentially eliminating it from alkaline-digested samples. µRaman or FTIR on non-digested samples is preferred. PET markers are reliable when detected. |
| source_id |
4 |
| notes |
Common polyester fibre from clothing; dominant particle type in indoor dust. |
| created_at |
2026-05-16 05:30:24.903690 |
| updated_at |
2026-05-16 05:30:24.903690 |