What is MDI？

MDI (Methylene Diphenyl Diisocyanate) is an important organic compound primarily used for the production of polyurethane. Polyurethane materials are widely applied in various fields due to their excellent properties, including but not limited to construction, automotive, home appliances, furniture, and textiles.

Chemical Properties:

Main Applications:

Polyurethane Foams: MDI is a primary raw material for producing rigid, semi-rigid, and flexible polyurethane foams, which are widely used as insulation materials, packaging materials, and automotive seating.

Coatings and Adhesives: MDI can be used to manufacture high-performance coatings and adhesives suitable for bonding wood, metal, plastic, and other materials.

Elastomers: In the rubber industry, MDI serves as a key component in the production of synthetic elastomers, such as tires and conveyor belts.

Fibers: MDI is also used to produce fibers with special properties, such as heat resistance and wear resistance, for use in specific environments.

Production Process:

MDI is typically produced using the phosgene process, which involves reacting aniline and formaldehyde to form methylene diphenylamine, followed by reaction with phosgene to produce the final product. In recent years, some manufacturers have been exploring more environmentally friendly and sustainable production methods.

Safety Precautions:

• MDI is toxic; direct contact with skin or inhalation of its vapors can cause harm to human health.

• During storage and transportation, avoid high temperatures and open flames to prevent leaks.

• When handling MDI, appropriate protective equipment should be worn, and good ventilation conditions should be maintained.

MDI is a crucial chemical raw material that plays an indispensable role in modern industry. Its proper application can significantly enhance the performance and value of products. However, safety management and environmental protection must be prioritized during production and use to ensure sustainable development.

We are proud to offer high-quality MDI for sale. Our MDI products meet the highest standards of purity and consistency, ensuring reliable performance in a wide range of applications. For more information or to place an order, please contact us at Zhonglian Chemcials.