PET Wankai WK‑811
PET Wankai WK‑811
PET Zhejiang Wankai WK‑811 is non‑toxic, odor‑free bottle‑grade polyester with high transparency. It delivers high strength, good barrier performance, favorable toughness and excellent moldability.
Main Applications
Soft‑drink bottles, dairy‑product bottles, edible‑oil bottles, condiment bottles, daily‑chemical packaging, electronic‑product packaging.
Physical Properties
| Property Category | Item | Reference Data(WK811) | Unit |
|---|---|---|---|
| Basic Properties | Intrinsic Viscosity (IV) | 0.80 ±0.02 | dl/g |
| Acetaldehyde content | ≤ 1 | ppm | |
| Color value‑L (brightness) | ≥ 83 | — | |
| Color value‑b (yellowness index) | ≤ 1 | — | |
| Melting point | 241‑245 | °C | |
| Moisture content | ≤ 0.4 | % | |
| Weight per 100 pellets | 1.45‑1.65 | g/100 pcs |
Processing Parameters
| Process | Parameter | Suggested Range | Unit | Remarks |
|---|---|---|---|---|
| Pre‑drying | Temperature | 160‑175 | °C | Critical to avoid hydrolytic degradation |
| Time | 4.0‑6.0 | h | Ensure sufficiently low residual moisture | |
| Injection molding | Melt temperature | 270‑295 | °C | General PET reference, adjust per actual condition |
| Mold temperature | 30‑130 (commonly 70‑110) | °C | Subject to product requirements |
Note: All information above is for reference only!
