Id: 7

Column Value
polymer_type <app.db.schema.PolymerType object at 0x7b1829224410>
morphology <app.db.schema.Morphology object at 0x7b1829224740>
source <app.db.schema.LiteratureSource object at 0x7b18292249e0>
chemical_loads
matrix_entries (<app.db.schema.MatrixComposition object at 0x7b1829224ec0>) (<app.db.schema.MatrixComposition object at 0x7b1829224e90>) (<app.db.schema.MatrixComposition object at 0x7b1829224e60>) (<app.db.schema.MatrixComposition object at 0x7b1829224f50>) (<app.db.schema.MatrixComposition object at 0x7b1829224f80>)
id 7
polymer_type_id 1
size_major_axis_nm 1500.0
size_minor_axis_nm 1500.0
morphology_id 4
crystallinity_pct 60.0
surface_area_m2_per_g 3.5
zeta_potential_mv -30.0
hydrophobicity_log_d 3.5
surface_functionalization Smooth, pristine surface; no weathering.
protein_corona_potential
origin Primary
weathering_state 1
degradability_notes PE biodegrades extremely slowly; will persist in the environment.
density_g_per_cm3 0.95
reference_material_id
detection_method Optical microscopy + Raman
refractive_index 1.51
reliability_rating reliable
detection_method_notes PE microbeads are easily identified by optical microscopy and Raman spectroscopy.
source_id 3
notes Primary PE microbead from pre-ban cosmetic products. Still present in the environment.
created_at 2026-05-16 05:30:24.903693
updated_at 2026-05-16 05:30:24.903693