PVC Ningbo Formosa Plastics S‑60
PVC Ningbo Formosa Plastics S‑60 Resin
Material Introduction: PVC Ningbo Formosa Plastics S‑60 resin is a suspension‑polymerized PVC resin with moderate degree of polymerization and excellent transparency. Featuring outstanding transparency, favorable processability and controllable fish‑eye count, it is an ideal choice for manufacturing high‑grade rigid and semi‑rigid transparent products.
Main Applications
Transparent sheets and boards: transparent packaging sheets, decorative boards, etc. Its superior transparency delivers excellent display performance.
Pipe fittings and injection‑molded parts: transparent pipe fittings, injection‑molded joints, valves, containers and other industrial components requiring certain transparency.
Profiles: semi‑transparent or special‑color profile products.
Other rigid‑grade products: also applicable to other rigid articles with low transparency requirements, though such applications are not its strength.
Performance Parameters
| Test Item | Test Condition | Test Method | Superior Grade | First‑Grade | Qualified Grade | Unit |
|---|---|---|---|---|---|---|
| Bulk Density | ‑ | GB/T 3402‑1994 | 0.53‑0.59 | 0.53‑0.59 | 0.53‑0.59 | g/ml |
| Plasticizer Absorption per 100 g Resin | ‑ | GB/T 3400‑2002 | ≥18 | ≥18 | ≥18 | g |
| Sieve Residue (0.25 mm sieve) | ‑ | GB/T 2916‑1997 | ≤1.0 | ≤1.0 | ≤2.0 | % |
| Sieve Residue (0.063 mm sieve) | ‑ | GB/T 2916‑1997 | ≥95 | ≥95 | ≥90 | % |
| Impurity Particle Count | ‑ | GB 9348‑1988 | ≤16 | ≤30 | ≤80 | pcs |
| Whiteness | 160℃, 10 min | GB/T 15595‑1995 | ≥78 | ≥78 | ≥75 | % |
| Viscosity Number | ‑ | GB/T 5761‑1993 | 87‑95 | 60‑62 | 750‑850 | ml/g |
| Volatile Matter Content (including water) | ‑ | GB/T 2914‑1999 | ≤0.3 | ≤0.3 | ≤0.4 | % |
| Residual Vinyl Chloride Content | ‑ | GB/T 4615‑1984 | ≤3 | ≤3 | ≤5 | ppm |
| Fish‑eye Count | ‑ | GB/T 4611‑1993 | ≤20 | ≤50 | ≤90 | pcs/400cm² |
Extrusion Processing
| Process Parameter | Reference Range | Unit | Remarks |
|---|---|---|---|
| Barrel Temperature (Rear Section) | 150‑165 | ℃ | Feeding section; prevent premature plasticization |
| Barrel Temperature (Middle Section) | 160‑175 | ℃ | Compression section; material starts melting and plasticizing |
| Barrel Temperature (Front Section) | 165‑180 | ℃ | Metering section; homogenize melt |
| Die‑head Temperature | 170‑185 | ℃ | |
| Die Temperature | 175‑185 | ℃ | |
| Screw Speed | 10‑40 | rpm | Adjust according to screw diameter and product complexity |
| Melt Temperature | 170‑185 | ℃ | Actual measured value |
Injection Molding Parameters
| Process Parameter | Reference Range | Unit | Remarks |
|---|---|---|---|
| Barrel Temperature (Rear Section) | 150‑160 | ℃ | |
| Barrel Temperature (Middle Section) | 160‑170 | ℃ | |
| Barrel Temperature (Front Section) | 165‑175 | ℃ | |
| Nozzle Temperature | 160‑170 | ℃ | |
| Mold Temperature | 30‑50 | ℃ | |
| Injection Pressure | 70‑100 | MPa | |
| Holding Pressure | 50‑70 | MPa | |
| Screw Speed | 30‑60 | rpm |
Disclaimer: All above data is for reference only.
