PVC SG3 is a suspension polyvinyl chloride (PVC) resin with a K-value of approximately 71u201372. It has a relatively low molecular weight and good fluidity. Compared with PVC SG5, SG3 exhibits higher viscosity, better transparency, and higher plasticization efficiency. It is widely used in the production of soft PVC products, such as hoses, cable compounds, films, artificial leather, and coated products.
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| Item | PVC SG3 |
|---|---|
| Viscosity No. (ml/g) | 127u2013137 |
| K value | 71u201372 |
| Polymerization Index | 1370u20131280 |
| Number of impurity particles | 17max |
| Volatile Matter, % | 0.3max |
| Apparent Density, g/ml | 0.4min |
| Number of Fish Eye (u2264 0.4 mm) | 20max |
| Plasticizer absorption (100g resin), g | 21min |
| VC residual, ppm | 5max |
| Whiteness (160u00b0C, 10min), % | 76min |
| Particle size | 250u03bcm min |
| u00a0 | 0.25u20130.063 mm: 95% min |
PVC SG3 offers outstanding melt flow and rapid plasticization. Its relatively low molecular weight allows easier processing, making it suitable for injection molding, extrusion, coating, and other molding processes. It provides good processing efficiency and can be processed at relatively low temperatures, reducing the risk of decomposition and yellowing.
The SG3 resin is highly compatible with common PVC additives. It can be combined with various plasticizers such as DOP, DINP, DOTP, DOA, coating agents, and other additives to produce different flexible PVC products.
Due to its molecular structure and uniformity, PVC SG3 can produce products with high transparency and good gloss. It is suitable for applications where clear appearance and visual quality are important.
PVC SG3 provides good flexibility when combined with suitable plasticizers. It is suitable for manufacturing soft PVC products such as hoses, films, cable materials, artificial leather, and coated products.
This resin has good resistance to many chemicals and provides stable performance when exposed to acids, alkalis, salts, and other chemical substances. It is suitable for various industrial applications requiring chemical resistance.
PVC SG3 can be used to manufacture products that meet applicable environmental and safety requirements. When properly formulated and processed, it can provide good economic and sustainability benefits.
Thanks to the combination of high technical performance and easy processability, PVC SG3 is primarily used for the production of soft and semi-rigid PVC products. Typical applications include:
(1) Packaging Specifications: 25 kg per bag, inner PE film with outer woven bag.
(2) Storage Conditions: Store in a dry, well-ventilated warehouse and protect from sunlight and moisture.
(3) Transportation Requirements: Classify as non-hazardous material. Take care to prevent bag breakage and avoid moisture absorption.