PET Changzhou Huarun CR‑8863
PET Changzhou Huarun CR‑8863
PET Changzhou Huarun CR‑8863 is high‑performance bottle‑grade polyester chip. It is tailored for packaging fields requiring high transparency, food‑contact safety and stable processability.
Main Applications
Edible‑oil bottles, liquor bottles, PET sheets, carbonated‑drink bottles, daily‑chemical bottles.
Physical Properties
| Property Category | Item | Test Standard | Typical Value | Industry Comparison |
|---|---|---|---|---|
| Basic Properties | Intrinsic Viscosity (IV) | GB/T 17931 | 0.83±0.015 dL/g | Higher than general‑purpose PET (0.75‑0.80) |
| Density | ISO 1183 | 1.38‑1.40 g/cm³ | Comparable with conventional PET | |
| Melting Point (Tm) | DSC | 250‑255℃ | Key index for thermal stability | |
| Mechanical Properties | Axial Tensile Strength | ASTM D638 | ≥160 MPa | ~15% higher than CR‑8840 |
| Impact Strength (-10℃) | ASTM D256 | ≥20 kJ/m² | Anti‑fracture performance under low temperature | |
| Flexural Modulus | ISO 178 | 2800‑3200 MPa | Support bottle lightweight thinning design | |
| Thermal Properties | HDT (1.8 MPa) | ASTM D648 | 85℃ | Suitable for hot‑fill process |
| Crystallization Temp.(Tc) | DSC | 125‑135℃ | Fast crystallization to shorten cycle time | |
| Thermal Shrinkage (100℃/30 min) | GB/T 13508 | ≤2.5% | Prevent bottle deformation after filling | |
| Optical & Sanitary Performance | Light Transmittance | ASTM D1003 | ≥90% | Exceed national standard (≥85%) |
| Acetaldehyde (AA) Content | GC method | ≤0.8 ppm | Top‑tier level for hot‑fill grade | |
| Pb heavy‑metal migration | GB 31604.9 | Not detected (＜0.01 ppm) | FDA / EFSA dual compliance |
Processing Parameters
| Equipment Section | Temperature Range (℃) | Key Control Notes |
|---|---|---|
| Feed zone (C1) | 255‑265 | Avoid premature melting and blockage |
| Compression zone (C2‑C3) | 270‑285 | Core plasticizing zone; temp fluctuation ≤±2℃ |
| Metering zone (C4) | 280‑290 | Slightly higher temp for high‑viscosity melt |
| Die head | 275‑285 | Temperature＞290℃ causes sharp acetaldehyde rise |
Note: All information above is for reference only!
