Features Of Dow ENGAGE 8480 Impact Modifier
Supplied in pellet form, enabling automated feeding and precise dosing for continuous production
Balances high clarity and flexibility, meeting dual requirements for appearance and touch in footwear and hoses
Excellent compatibility with polyolefins, allowing efficient blending with PE, PP, etc., to expand material performance
High tear strength and impact resistance, enhancing product durability and damage tolerance
Wide temperature tolerance, maintaining stable mechanical properties between -31°C and 99°C
Typical Applications Of Dow ENGAGE 8480 Impact Modifier
Footwear applications, including sneaker midsoles, upper elastic strips, and anti-slip soles, providing rebound and comfort
Tubing and profile extrusion, such as food-grade hoses, medical catheters, and industrial delivery pipes, balancing clarity and flexibility
Cross-linked foam products, like cushioning pads, sound insulation cotton, and shoe foam layers, improving light weight and shock absorption
Polyolefin blending modification, enhancing low-temperature toughness and impact resistance of PP/PE for automotive interiors and home appliance parts
Wire and cable outer sheaths, ensuring safety in outdoor and complex environments with weather resistance and insulation
Specifications Of Dow ENGAGE 8480 Impact Modifier
| Property | Nominal Value (SI / English) |
|---|
| Physical |
|
| Density | 0.902 g/cm³ |
| Melt Index (190°C/2.16 kg) | 1.0 g/10 min |
| Mooney Viscosity (ML 1+4, 121°C) | 20 MU |
| Mechanical |
|
| Tensile Modulus - 100% Secant | 8.00 MPa / 1160 psi |
| Tensile Strength (Break) | 24.8 MPa / 3600 psi |
| Tensile Elongation (Break) | 660 % |
| Flexural Modulus (1% Secant) | 83.1 MPa / 12100 psi |
| Flexural Modulus (2% Secant) | 81.5 MPa / 11800 psi |
| Tear Strength | 91.2 kN/m / 521 lbf/in |
| Hardness |
|
| Durometer Hardness (Shore A) | 89 |
| Durometer Hardness (Shore D) | 42 |
| Thermal |
|
| Glass Transition Temperature | -31.0 °C / -23.8 °F |
| Vicat Softening Temperature | 89.0 °C / 192 °F |
| Melting Temperature (DSC) | 99.0 °C / 210 °F |
| Peak Crystallization Temperature | 84.0 °C / 183 °F |
| Additional |
|
| Environmental Stress Crack Resistance (ESCR) | >800 hrs (F0) |
| Heat Deflection Temperature (0.45 MPa) | 70.0 °C / 158 °F |
Dow ENGAGE 8480 Impact Modifier – Frequently Asked Questions (FAQ)
Q1: What is the primary polymer matrix compatibility of ENGAGE 8480?
A: ENGAGE 8480 is specifically designed for use in polypropylene (PP) systems, where it enhances impact resistance—particularly at low temperatures—while maintaining stiffness and processability. It shows good compatibility with both homopolymer and copolymer PP grades.
Q2: How does ENGAGE 8480 differ from other ethylene-octene copolymers in Dow’s ENGAGE portfolio?
A: ENGAGE 8480 features a balanced combination of melt flow, crystallinity, and elastomeric character optimized for impact modification in rigid PP applications. Compared to higher-MI grades, it offers improved dispersion and interfacial adhesion in PP blends, while retaining better retention of flexural modulus than softer, lower-crystallinity variants.
Q3: Can ENGAGE 8480 be used in food-contact or medical-grade PP compounds?
A: ENGAGE 8480 is manufactured under Dow’s stringent quality controls and is commonly incorporated into PP compounds intended for food-contact applications. However, final regulatory compliance depends on the full formulation, processing conditions, and end-use requirements—formulators must validate suitability per applicable regional regulations and customer specifications.
Q4: What is the typical dosage range for ENGAGE 8480 in PP impact-modified compounds?
A: ENGAGE 8480 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—depending on the base PP grade, desired impact performance, and balance with mechanical properties such as stiffness and surface finish.
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