Low end carboxyl heavy metal-free super bright PET chips
It can be directly spun / film made, or processed after tackifying; It can be used for back plate membrane, geotextile, super fiber cloth, etc.
DH hyti low end carboxyl antimony free super bright LC polyester chip product quality
| Serial number | Items | Unit | Quality index | (L-17)Test results | Test method / Standard | |
| 1 | Intrinsic viscosity | dL/g | 0.675± 0.025 | 0.672 | GB/T 14190-2017 | |
| 2 | Melting point | ℃ | 260±3 | 260 | ||
| 3 | Terminal carboxyl content | mol/t | ≤28 | 9.1 | ||
| 4 | Chromaticity | B value | 4±2 | 4.8 | ||
| L value | ≥80 | ≥80.9 | ||||
| 5 | Moisture (mass fraction) | % | ≤0.5 | 0.35 | ||
| 6 | ≥ 10 µ m Agglutinated particles | /mg | ≤6.0 | 0 | ||
| 7 | Diethylene glycol content (mass fraction) | % | 1.20±0.30 | 1.02 | ||
| 8 | Iron content | mg/kg | ≤2 | 0 | ||
| 9 | Powder | mg/kg | ≤100 | 1 | ||
| 10 | Abnormal slice (mass fraction) | % | ≤0.6 | 0 | ||
| 11 | Antimony content | ppm | ≤10 | ND | According to US EPAmethod3052:1996,ICP-OES was used | |
The central value of carboxyl end group content shall be determined within the range of ≤ 28mol / T through negotiation between the supplier and the buyer. Once determined, it shall not be changed arbitrarily.
The central value of chromaticity b value shall be determined within the range of ≤ 10 by both parties through negotiation. Once determined, it shall not be changed arbitrarily.
The central value of diethylene glycol content shall be determined within the range of ≤ 1.5% through negotiation between the supplier and the buyer. Once determined, it shall not be changed arbitrarily.
Antimony content index: the detection limit of the method is 10ppm, and Nd is not detected.
