Methylene diphenyl diisocyanate MDI
Pure MDI: white to slightly yellow crystals at room temperature, storage temperature below 5 degrees, shelf life of three months, packaging is generally 250 kg iron drum filled with nitrogen (tank truck filled with nitrogen for 10 days shelf life).
Polymeric MDI: brown transparent liquid, stored at room temperature, shelf life of two years, packaging is generally 250 kg iron drum filled with nitrogen.
Existing technology: The current global popular MDI production method basically uses aniline as a raw material, and then reduces it to a crude MDI product through the phosgene method, and then separates pure MDI and polymerized MDI through a fractionation device.
Product Name | Methylene diphenyl diisocyanate MDI |
Latin Name | Methylene diphenyl diisocyanate MDI |
Delivery Time | Prompt |
Shipping Service | FEDEX, TNT, DHL, UPS Express |
Shelf Life | 24 Months under Proper Storage |
Function
Methylene diphenyl diisocyanate MDI
MDI is the general term for 4,4'diphenylmethane diisocyanate (pure MDI), a mixture containing a certain proportion of pure MDI and polyphenyl polymethylene polyisocyanate (polymeric MDI), and a modified product of pure MDI and polymeric MDI , Is the most important raw material for the production of polyurethane, a small amount of MDI is used in other aspects except polyurethane.
Application
Methylene diphenyl diisocyanate MDI
Polyurethane has not only the elasticity of rubber, but also the strength of plastics and excellent processing performance.
Especially in terms of heat insulation, sound insulation, abrasion resistance, oil resistance, elasticity, etc., it has the
advantages that other synthetic materials can’t match. It is next to polyethylene and polychloride. The sixth largest plastic after ethylene, polypropylene, polystyrene and ABS (now surpassing ABS to become the fifth largest plastic), it has been widely used in national defense, aerospace, light industry, chemical industry, petroleum, textile, transportation, automobile, medical,etc. The field has become an indispensable emerging material for economic development and people’s lives.
Especially in terms of heat insulation, sound insulation, abrasion resistance, oil resistance, elasticity, etc., it has the
advantages that other synthetic materials can’t match. It is next to polyethylene and polychloride. The sixth largest plastic after ethylene, polypropylene, polystyrene and ABS (now surpassing ABS to become the fifth largest plastic), it has been widely used in national defense, aerospace, light industry, chemical industry, petroleum, textile, transportation, automobile, medical,etc. The field has become an indispensable emerging material for economic development and people’s lives.