| Test Item | Unit | Value Range | Standard | Remark |
| Intrinsic Viscosity(I.V.) | dl/g | 0.88±0.02 | ISO 1628-5 | 60/40
phenol/1,1,2,2-
tetrachloroethane |
| Melting Point | ℃ | 250±3 | ISO11357-3 | DSC |
| Color | LValue | / | ≥70 | ISO11664-4 |
|
| a Value | / | -4~0 |
| b Value | / | -4~-1 |
| Crystalinity | % | >40 | ISO11357-3 |
|
| Acetaldehyde Content | ppm。 | ≤1 | Internal |
|
| Black Dots(≥3mm) | % | 0 | Internal | Mesh size:25μm |
| Black Dots(2～3mm) | % | 0 |
| Black Dots(1～2mm) | % | ≤3 |
| Black Dots(0.5～1mm) | % | ≤10 |
| Hundred-grain Weight | g | 1.9±0.2 | Internal | 45~55 pieces/g |
| Moisture Content | % | ≤0.2 | ISO15512 |
|
| Ash Content | % | ≤0.08 | ISO 3451-1 |
|
| Iron Content | mg/kg | ≤5 | ISO 6685 |
|
| Typical Processing information: |
| 1.Different batch numbers of materials cannot be mixed. |
2.The hydrolytic sensitivity of recycled PET pellets is higher than that of virgin PET pellets.
Therefore,the drying process needs to be strengthened.It is recommended that the drying |
temperature be 170°℃,the residence time be 8 hours,and the dew point of dry air be lower than-
50℃ . |
3.Customers should adjust the molding parameters according to their machine,mold and other
product requirements. |
