GPPS 1070 is a high molecular weight crystal polystyrene designed for special extrusion applications that require high mechanical properties. This grade offers excellent stiffness and stability, making it suitable for products that demand high performance in structural integrity and thermal stability.
 
Key Features
High Molecular Weight: Enhances mechanical properties and ensures robustness in finished products.
Special Extrusion Applications: Ideal for applications requiring precise and stable extrusion capabilities.
High Mechanical Properties: Provides increased strength and durability for demanding applications.
 
Applications
Insulation Sheet: Utilized extensively in the production of insulation materials for construction and industrial uses.
Special Extrusion: Suitable for complex extrusion profiles used in various industrial applications.
 
Processing Guidelines
Drying: If moisture affects product quality, granules of GPPS 1070 can be dried at 70°C for 2-4 hours to ensure optimal processing.
 
Typical Properties
Melt Flow Index (200°C/5kg): 1.7 g/10 min (ASTM D-1238), indicating the material's flow characteristics under heat.
Styrene Residual Monomer: <500 ppm (CLG LABPSG004), ensuring low levels of residual monomers for enhanced safety.
Vicat Softening Point: 104°C (ASTM D-1525), the temperature at which the polymer begins to soften under a specified load.
Tensile Stress at Break: 57 MPa (ASTM D-638), showing the material's maximum stress capacity before breaking.
Elongation at Break: 3% (ASTM D-638), indicating minimal elongation, highlighting its stiffness.
Tensile Modulus: 4710 MPa (ASTM D-638), reflecting the high stiffness of the material.
Density and Shrinkage: Approximately 1.04 kg/lit and 0.4-0.7% (ASTM D-955), important for processing and dimensional considerations.
 
Conclusion
GPPS 1070 is engineered for specialized applications that require a polystyrene with exceptional mechanical properties and stability. Its suitability for high-performance extrusion and insulation applications makes it a valuable choice for manufacturers looking for reliability and precision in their polystyrene materials.