Polymeric MDI is a material composed of a mixture of diphenylmethane diisocyanate and polyphenyl polymethylene polyisocyanate, which contains a certain percentage of high energy isocyanate, appears as a dark brown liquid at room temperature. This material has a wide range of applications in the field of chemical industry, especially in the manufacture of polyurethane rigid foam. In addition, polymeric MDI is also used in the production of isocyanurate foams, coatings, adhesives, anti-seepage plugging materials, structural foams, microporous self-crusted foams, etc. In the automotive industry, it is also used in the manufacture of bumpers, interior trim, high rebound foam, and synthetic wood.
Polymeric MDI is widely used in these fields because its unique composition gives it good foam flow properties, which makes it very suitable for the manufacture of products with strict requirements for the flow properties of the foamed stock solution. In addition, polymeric MDI also has good thermal insulation and high bonding properties, so it is particularly prominent in the application of thermal insulation materials and adhesives.
From a market perspective, polymeric MDI is a technology and capital intensive industry product. Globally, the construction and engineering industry is the downstream industry with the highest share of polymeric MDI consumption, accounting for about 45-50%, while the home appliances industry is the second largest share of downstream consumption, accounting for about 20%. This fully demonstrates the importance and wide application of polymeric MDI in modern industry and life.
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