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General Purpose Polystyrene (GPPS) 1160 is a specialized high-heat-resistant and high-molecular-weight crystal polystyrene specifically designed for the demands of the extrusion and bi-oriented polystyrene (OPS) industries. It is renowned for its superior mechanical properties, particularly when used in the production of thick sheets via direct inject gassing. This characteristic results in expanded sheets that uphold high structural integrity and performance standards. Additionally, GPPS1160 is certified for food contact applications, affirming its safety and versatility in diverse uses.
Manufacturing Process and Technology
The production of GPPS1160 involves a highly refined process that ensures optimal polymerization of styrene monomer, reinforced by cutting-edge technology and rigorous quality control systems. By achieving a high molecular weight, the material develops enhanced heat resistance and robustness, making it suitable for demanding environments. The continuous polymerization technique allows producing crystal-clear polystyrene with uniform physical and mechanical properties, ensuring reliability and performance consistency across applications.
Key Features and Benefits
- High Heat Resistance: Allows for stability in thermal applications, essential for industrial processes involving high temperatures.
- Superior Mechanical Properties: Exhibits excellent tensile strength and hardness, ideal for applications requiring durability and resilience, such as thick sheet production.
- Ease of Processing: Its specific formulation makes GPPS1160 suitable for various manufacturing processes, including extrusion and thermoforming, ensuring efficiency and versatility.
- Food Contact Safety: Approved for food contact applications, providing peace of mind and compliance with regulatory standards for use in food service and packaging industries.
- Recyclable and Eco-Conscious: As a recyclable material, GPPS1160 contributes to environmental sustainability efforts and supports eco-friendly product life cycles.
Typical Applications
GPPS1160’s unique properties make it ideal for a range of applications across several industries, highlighting its adaptability and high performance:
- Shower Cabinets: The product’s clarity and durability make it suitable for use in high-end bathroom fixtures where both aesthetic and mechanical strength are essential.
- Lighting Thin Films: Offers transparency and thermal stability, necessary for effective lighting solutions that both protect and enhance light diffusion.
- Insulation Boards: Provides excellent thermal insulation properties, making it a preferred choice for energy-efficient construction materials.
- Foam Sheets for Fruit Trays, Meat Trays, and Egg Boxes: Ideal for packaging solutions that require lightweight, protective, and food-safe materials, supporting both logistics and product presentation.
Technical Specifications
GPPS1160’s performance can be quantified through the following technical specifications, derived from standardized testing:
| Property | Test Method | Unit | Value |
|---|---|---|---|
| Melt Flow Index (200°C/5 KG) | ASTM D-1238 | GR/10MIN | 2.5 |
| Styrene Residual Monomer | CLG LABPSG004 | PPM | <500 |
| Vicat Softening Point (50°C/hr 1kg) | ASTM D-1525 | °C | 105 |
| Rockwell Hardness | ISO2039-2 | - | L SCALE/70 |
| Tensile Strength at Break | ISO527-2 | MPA | 48 |
| Elongation at Break | ISO527-2 | % | 3 |
| Tensile Modulus | ISO527-2 | MPA | 3200 |
Note: The above data are typical values under standard testing conditions of 23°C and 50% relative humidity. Actual specifications should be verified through user-specific testing.
Additional Information
- Density and Shrinkage: Approximately 1.04 kg/L and a shrinkage rate of 0.4-0.7% (ASTM D-955), making GPPS1160 efficient in applications where dimensional stability is crucial.
- Optional Additives: In variants where the fourth digit in the grade reference number is “1” (e.g., 1161), an external lubricant is included, enhancing processing characteristics and final product quality.
- Moisture Sensitivity and Handling: If the quality of injection-molded products is compromised due to moisture, GPPS granules can be dried at 70°C for 2-4 hours to improve processing and end-product performance.
Packaging and Logistics
GPPS1160 is supplied in granule form, approximately 2.5×2.5 mm, packed in 25 kg bags. This packaging ensures ease of handling and protection against contamination, preserving the material’s quality during transportation and storage.
Environmental and Regulatory Compliance
- Recyclability and Sustainability: As a fully recyclable material, GPPS1160 aligns with sustainability goals by supporting reduced waste and promoting resource efficiency.
- Regulatory Certifications: Compliant with international standards and certifications for food safety, GPPS1160 supports applications requiring stringent adherence to health and safety regulations.
Customer Support and Service
Our team offers extensive technical support to help you maximize the potential of GPPS1160 in your applications. From initial consultation to post-implementation technical assistance, you will receive expert guidance to ensure optimal material usage and performance.
Contact Information
For detailed inquiries, technical assistance, or orders, please contact:
- Procurement Team: procurement@iranrequest.com
- Commercial Team: commercial@iranrequest.com
Phone Numbers (Available on WhatsApp):
- Iran Office: +98 935 220 12 16
- Dubai Office: +971 56 803 6388
