What is Dimeryl Diisocyanate (DDI)

Dimeryl Diisocyanate (DDI) is a unique aliphatic diisocyanate that can be used to prepare polymers with compounds containing active hydrogen. It is a long-chain compound with a 36-carbon dimer fatty acid backbone. The main chain structure gives DDI superior flexibility, water resistance and low toxicity to other aliphatic isocyanates. DDI is a low viscosity liquid that is easily soluble in most polar or non-polar solvents. Because it is aliphatic isocyanate, has the characteristics of non-yellowing. It has many advantages of low toxicity, easy to use, soluble in most solvents, controllable reaction time and low water sensitivity. It is a typical green biorenewable special isocyanate variety, which can be widely used in fabric finishing, elastomers, adhesives and sealants, coatings, inks and other military and civil fields.

DDI is known for its exceptional reactivity and versatility, making it an ideal choice for formulating high-quality polyurethane products. Its molecular structure consists of two isocyanate groups, which enable it to react with polyols and other compounds to form polyurethane polymers. This reactivity allows for the customization of polyurethane materials with specific properties, such as flexibility, durability, and thermal resistance.

One of the key advantages of DDI is its ability to enhance the performance and durability of polyurethane products. By incorporating DDI into polyurethane formulations, manufacturers can improve the strength, abrasion resistance, and chemical resistance of the resulting materials. This makes DDI an essential component in the production of coatings and adhesives that are used in demanding applications, such as automotive, construction, and industrial coatings.

In addition to its use in coatings and adhesives, DDI is also widely utilized in the production of polyurethane elastomers and foams. These materials are valued for their elasticity, impact resistance, and cushioning properties, making them suitable for applications in industries such as footwear, furniture, and sports equipment. By leveraging the unique properties of DDI, manufacturers can create polyurethane elastomers and foams that meet the stringent performance requirements of these diverse markets.

Furthermore, DDI offers excellent compatibility with a wide range of polyols and additives, allowing formulators to tailor the properties of polyurethane materials to meet specific application needs. This flexibility enables the development of customized solutions for various industries, including construction, transportation, and consumer goods. Whether it's improving the durability of protective coatings or enhancing the comfort of cushioning materials, DDI plays a crucial role in enabling innovation and performance in polyurethane-based products.

As a leading supplier of DDI, we are committed to providing high-quality and reliable products to our customers. Our technical expertise and industry knowledge enable us to support manufacturers in optimizing their formulations and achieving their desired product performance. With our comprehensive range of DDI grades and technical support, we strive to be a trusted partner for businesses seeking to enhance the performance and sustainability of their polyurethane products. meanwhile with the strong R&D capabilities, that ensure us can research and develop new DDI according to the special demand of our clients.

The DDI own the specific Physical Property compare with IPDI, MDI, TDI.

Our specification of DDI as follow:

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