PPC (polypropylene carbonate) is a completely biodegradable environmental-friendly plastic synthesized from carbon dioxide and propylene oxide. Besides, due to its using the main source of greenhouse gases—CO₂ as the feedstock, PPC not only reduces the emission of greenhouse gases, but also reduces the consumption of fossil fuel. Compared to the degradable PLA (polylactide), it has advantages of high strength, good ductility, lower production cost and etc. PPC polyol with low molecular weight are used to replace conventional petroleum-based polyether, polyester and polycarbonate polyols, while PPC with high molecular weight are employed as film products, oxygen barrier material, injection molding material and etc., especially in package industry and agriculture.
| S/N | Item | Index |
| 1 | Appearance | White or colorless transparent granule |
| 2 | Density,g/cm³ | 1.24~1.27 |
| 3 | Number-Average Molecular Weight, kg/mol | 200~300 |
| 4 | Glass Temperature | 35~39 |
| 5 | CO₂ Content, wt% | 40%~42% |
| 6 | 5% Decomposition Temperature, °C | ＞230 |
| 7 | Processing Temperature,°C | 140~190 |
| 8 | Moisture Content, wt% | ＜0.3% |
| 9 | Ash，ppm | ＜1000 |
| 10 | Bio-gradability | Under forced composting, will be decomposed within 3 months |
| Density(g/cm³ ) | Melting index (g/10min) | Tg (°C ) | Tensile Strength (Mpa) | Tensile Modulus (Mpa) | Elongation at break (%) | Impact Strength (g)V | Transmittance |
| 1.25~1.30 | 0.2~10 | 35~38 | 40~45 | 1000 | 15~20 | ＜35 | 94~95% |
| 20°C | 160°C ,2.16 Kg | DSC 100 C/min | 20℃,50 mm/min | 20℃,50 mm/min | 20℃,50 mm/min | 20℃,falling dart impact | 0.2mm film, 400~800nm |
A5-Melamine Formaldehyde Moulding compound (MFMC)
MEG (mono-ethylene glycol)
Formaldehyde (Fe-molybdenum method)
DMC (Dimethyl Carbonate)
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