1,5-Naphthalene Diisocyanate (NDI) is a premium aromatic diisocyanate widely used to synthesize high-performance cast polyurethane (PU) elastomers, renowned as one of the top-tier PU material systems for extreme dynamic and mechanical load scenarios.
NDI-based PU elastomers feature outstanding structural regularity and hard-segment ordering, delivering exceptional dynamic properties: high resilience, minimal hysteresis loss, low internal heat buildup, and outstanding fatigue resistance under repeated compression or tension. They also exhibit excellent mechanical strength, high wear resistance, good oil resistance, and reliable thermal stability, with continuous service temperature up to around 80°C and short-term heat resistance up to 120°C.
Compared with conventional MDI/TDI-based polyurethanes, NDI elastomers offer superior dynamic performance and dimensional stability under heavy loads, making them the preferred material for high-demand industrial applications. Typical uses include high-load rollers, screen printing squeegees, forklift wheels, coupling elements, shock absorbers, sealing components, and high-performance elastomer parts in automotive and machinery systems.
With their unique combination of mechanical robustness and dynamic durability, NDI-based polyurethane elastomers serve as a critical high-performance polymer solution for demanding engineering environments worldwide.
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