Polystyrene Resin PS Granules Disposable Tableware Raw Material
Polystyrene Resin PS Disposable Tableware food grade Raw Material
Polystyrene is a naturally transparent and synthetic thermoplastic extracted from a styrene monomer. It is typically available in two forms – Solid Plastic and rigid foam material. Its main characteristic includes softening when applied to heat, and its films and sheets can be transformed into various products used in different applications. It is one of the largest plastic commodities in terms of the market size (holding approximately 7% of the global thermoplastic market).
Polystyrene Properties:
• Lightweight and rigid
• Easily molded
• Excellent insulation properties
• Resistant to water
• Durable and resistant to chemicals and abrasion
• Flame-resistant and non-toxic
• Relatively inexpensive
Polystyrene Specifications
| Feature | Description |
| Chemical composition | A thermoplastic polymer made from styrene monomer |
| Physical form | Solid or foam |
| Color | Usually transparent, white or black |
| Density | 1.04-1.06 g/cm³ (for solid PS) or 0.01-0.05 g/cm³ (for foam PS) |
| Tensile strength | 40-50 MPa (depending on the formulation and processing) |
| Flexural strength | 60-80 MPa (depending on the formulation and processing) |
| Melting point | 240-270 °C (depending on the molecular weight of the polymer) |
| Glass transition temperature (Tg) | 85-105 °C |
| Heat distortion temperature (HDT) | 70-80 °C (for solid PS) or 50-60 °C (for foam PS) |
| Chemical resistance | Resistant to most acids, bases, and alcohols |
| Electrical insulation | Good |
| Flammability | Highly flammable, but can be modified with additives to increase fire resistance |
| Processing methods | Injection molding, extrusion, thermoforming, and more |
Please note that some of these properties may vary depending on the specific formulation and processing method used for PS resin.
Polystyrene Applications:
• Packaging materials
• Food containers
• Toys
• Protective packaging
• Electronics and medical devices
• Floor tiles
• Disposable cups and plates
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