DuPont™ Fusabond® N493 is an anhydride-modified ethylene copolymer with high maleic anhydride grafting rate, featuring compatibilization, toughening and adhesion promotion. It enhances interfacial bonding between polyolefins and polar materials, improves mechanical properties of composites, and suits wire & cable, wood-plastic composite and flame-retardant modification scenarios.
High maleic anhydride grafting rate, excellent modification effect for polyamide blends.
Dual functions of compatibilization and toughening, enhancing interfacial bonding strength of composites.
Reduces water absorption of fillers like wood flour, improving filler dispersion in polyolefin matrix.
Strengthens bonding between inorganic flame retardants and polymers, boosting product flexibility and flame retardancy.
Low melting point for low-temperature processing, excellent thermal stability with no precipitation risk.
Used as compatibilizer and coupling agent for polyolefin (PP/PE)-wood flour composites (WPC).
Applied in modification of polyolefin wire & cable compounds to improve comprehensive performance.
Suitable for halogen-free flame-retardant blends, enhancing compatibility between inorganic fillers and polymers.
Serves as impact modifier for thermoplastic resins such as PA and PP to improve product toughness.
Acts as adhesion promoter for polyolefins with metals, glass fibers, cellulose and other materials.
| Parameter | Specification / Value |
|---|---|
| Density | 0.88 g/cm³ |
| Melt Flow Index (190°C / 2.16 kg) | 3.7 g/10min |
| Flexural Modulus (0.05 in/min, 23°C) | 3258 psi (22 MPa) |
| Elongation at Break (V-type, 50mm/min, 23°C) | 587 % |
| Elongation at Break (V-type, 550mm/min, 23°C) | 551 % |
| Tensile Strength at Break (V-type, 50mm/min, 20°C) | 2085 psi (14 MPa) |
| Tensile Strength at Break (V-type, 50mm/min, 23°C) | 933 psi (6 MPa) |
| Durometer Hardness (D) | 30 |
| Melting Point (DSC) | 58 °C (136.4 °F) |
| Freezing Point (DSC) | 42 °C (107.6 °F) |
| Glass Transition Temperature (DSC) | -49 °C (-56.2 °F) |
| Vicat Softening Point | 42 °C (107.6 °F) |
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