MDI (Methylenediphenyl diisocyanate) is a chemical compound that is widely used as a component in polyurethane all over the world. It is used as a pure substance, as prepolymers, or in its oligomeric/polymeric form as such or as mixtures. MDI and MDI-based products are used in the production of various coatings, adhesives, sealants, and elastomers for items such as paints, glues, and weather-resistant materials. Most MDI and MDI-based products sold by Huntsman are intermediate chemicals used primarily to make rigid and flexible polyurethane foams, such as insulation for homes or refrigerators, mattresses, cushions, and many other uses.
Positive effects:
- MDI is a versatile chemical that offers the processing of tailor-made materials for a broad variety of applications.
Negative effects:
- The mutagenic effect of MDI was tested and showed positive and negative results in various tests.
- MDI substances are very reactive because of the presence of the isocyanate groups.
- MDI substances have a potential for release to the environment, primarily to air during industrial use, such as during the production of engineered wood and polyurethane products.
Ingredients or materials:
- MDI is solid in a flake form, and MDI-based products are typically clear, amber/brown, nonflammable liquids.
- An example of the physical properties for polymeric MDI is summarized below:
- Boiling point >300°C
- Flash point >150°C
- Vapor pressure <0.0001 mmHg / <0.001 Pa @ 25°C SDS Rubinate M <0.00001 hPa (20°C) .
- MDI consists of five MDI substances, which include three monomeric MDI substances (benzene, 1,1′-methylenebis.
