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SK POE875 is a low-density POE with high elasticity, excellent impact resistance and toughening performance, low temperature and aging resistance, good fluidity, suitable for modification and molding in automotive, shoe material and other fields.
High impact resistance and toughening, excellent toughness, greatly reducing the risk of material fracture under impact, suitable for high-strength and high-durability applications
Outstanding low temperature resistance, maintaining stable mechanical properties at low temperatures without embrittlement, with strong environmental adaptability
Good aging resistance, stable physical and chemical properties during long-term use, effectively extending the service life of products
High fluidity for easy processing, suitable for injection molding, wire drawing, extrusion and other processes, enabling the molding of complex-shaped products
Automotive Field: Bumpers, instrument panels, interior parts, seals, ensuring long-term reliability in harsh environments
Shoe Manufacturing: Soles, uppers, providing excellent comfort and durability, improving the wearing experience of shoes
Wires & Cables: Insulation layers, protective sleeves, with excellent insulation and wear resistance, meeting the requirements of wiring protection and use safety
| Physical Properties | |
| Density | 0.868 g/cm³ (ASTM D1505) |
| Shore A Hardness (1s) | 64 (ASTM D2240) |
| Shore D Hardness (1s) | 17 (ASTM D2240) |
| Thermal & Flow Properties | |
| Melt Flow Rate (190°C/2.16kg) | 5.0 g/10 min (ASTM D1238) |
| Melting Point | 62 °C (SK Method) |
| Mooney Viscosity | 8 MU (ASTM D1646) |
| Mechanical Properties | |
| Tensile Strength at Break | 6.08 MPa (ASTM D638) |
| Elongation at Break | ＞1000 % (ASTM D638) |
| Tensile Modulus (100% Secant) | 2.35 MPa (ASTM D638) |
| Flexural Modulus (1% Secant) | 10.79 MPa (ASTM D790) |
| Tear Strength | 37.26 kN/m (ASTM D624) |
Q1: What is the primary polymer matrix compatibility of SK Chemicals 875?
A: SK Chemicals 875 is specifically engineered for use in rigid PVC formulations, where it enhances impact resistance without significantly compromising stiffness or thermal stability. It demonstrates good compatibility with both unplasticized (uPVC) and partially plasticized PVC systems.
Q2: How does SK Chemicals 875 differ from conventional acrylic impact modifiers?
A: Unlike standard acrylic modifiers, SK Chemicals 875 features a tailored core-shell morphology designed to optimize stress transfer and dispersion in PVC melt processing. This results in improved low-temperature toughness retention and better balance between impact strength and processability.
Q3: Is SK Chemicals 875 suitable for applications requiring weather resistance?
A: Yes — SK Chemicals 875 contributes to enhanced long-term weatherability in PVC profiles and siding due to its inherent UV-stabilizing synergy with common PVC stabilizer systems. It helps maintain impact performance after prolonged outdoor exposure.
Q4: What is the typical dosage range for optimal performance?
A: Dosage depends on formulation requirements and end-use performance targets, but SK Chemicals 875 is typically used at low concentrations — generally ranging from 0.1% to 2% by weight relative to the PVC resin — to achieve meaningful improvements in Izod and Charpy impact values.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
