Table 1. PLA Sample Properties and Sourcesa,b.
| PLA sample | Mn (g mol–1) | Đ | Tm (°C) | source |
|---|---|---|---|---|
| 6202D | 44 350 | 2.00 | 155–170 | NatureWorks |
| 2500HP | 71 900 | 1.62 | 165–180 | NatureWorks |
| cup | 45 150 | 2.08 | 132–160 | Vegware |
| toy | 36 050 | 2.02 | 151–175 | Bioserie |
| 3D | 65 100 | 2.12 | 154–177 | RS components |
Average molecular weight number (Mn) and dispersity (Đ) were determined by refractive index gel permeation chromatography (GPC); values include a 0.58 correction factor.34
Melting point (Tm) of PLA waste samples was measured by differential scanning calorimetry (DSC); NatureWorks values were taken from the product’s datasheet.