1,5-Naphthylene Diisocyanate (NDI), identified by its CAS number 3173-72-6, is a critical monomer in the realm of advanced polymer chemistry. As a high-performance aromatic diisocyanate, NDI is indispensable for creating polyurethane elastomers that stand up to the most demanding conditions. It is typically supplied as a white to light yellow flaky crystalline solid, boasting a high purity level, generally exceeding 99% content.

The unique structure of NDI imparts exceptional properties to the resulting polyurethane systems, distinguishing them from those produced with more common diisocyanates. Key physical characteristics include a melting point between 126-130°C, a boiling point of 167°C at reduced pressure (5 * 1.33kPa), and a specific gravity ranging from 1.42 to 1.45 g/cm³. The NCO content is consistently high, typically above 39.8%, indicating its strong reactivity and suitability for polymerization.

The primary and most notable application of NDI is in the production of cast polyurethane elastomers for highly dynamic and heavy-duty applications. Polyurethanes derived from NDI exhibit superior mechanical properties, including outstanding tear strength, high tensile strength, excellent resilience, and significantly enhanced abrasion and wear resistance. These characteristics make NDI-based polyurethanes the material of choice for applications such as high-speed roller coaster wheels, forklift tires, conveyor belts, seals, technical rollers, and components for mining and heavy industrial machinery where durability and performance under stress are paramount.

Beyond its role in specialized elastomers, NDI also functions as an intermediate in the synthesis of various organic compounds, although its use as a monomer for high-performance polymers remains its most significant contribution. Its flake form and consistent quality are crucial for manufacturers relying on precise formulations to achieve desired material properties.

Given its reactive nature, proper handling and storage of NDI are essential. It should be kept in a cool, dry, well-ventilated area, away from heat, sparks, and ignition sources, and must be protected from moisture to prevent unwanted reactions. Availability in standard packaging sizes like 40kg and 100kg drums facilitates logistics for industrial users.

Sourcing high-quality 1,5-Naphthylene Diisocyanate is key for producers of premium polyurethane products. As a reliable NDI manufacturer and NDI supplier, we ensure material purity and consistency meeting stringent industrial grade standards. Interested parties looking to buy NDI powder or inquire about the current NDI price are encouraged to reach out. We facilitate the purchase CAS 3173-72-6 with efficient logistics and support, serving the needs of the global polyurethane industry.