WANKAI” Brand “WK881” PET resin bottle grade is TPA-based polyethylene terephthalic copolymer. It is a high molecular weight polymer for general use in manufacturing containers. It can be used in the production of making packing bottles for carbonated soft drink like cola and 3-gallon big bottles. .
Bottles made from WK881 resin can meet the requirement of high optical clarity and glossing, good barrier properties to oxygen, carbon dioxide and moisture. And prevent the possible bottle cracking during transportation.
The following table provides the parameters that characterize the grade.
| Parameter | Unit | Value | Limits |
| Intrinsic Viscosity (Foreign Trade)(I.V.) | dl/g | 0.875 | ±0.02 |
| Acetaldehyde Content | ppm | 1 | Max |
| Color（L-value） | — | 83 | Min |
| Color（B-value） | — | -0.5 | Max |
| Melting point | ℃ | 243 | ±2 |
| Moisture Content | wt% | 0.4 | Max |
Specification: PET CP-WANKAI-WK881
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