Methylenediphenyl diisocyanate (MDI)
Categories:
Polyurethane
Key words:
Methylenediphenyl diisocyanate (MDI)
White or light yellow solid
Product details
| name |
Methylenediphenyl diisocyanate (MDI) |
alias | MDI |
| chemical formula |
C15H10N2O2 |
CAS No |
101-68-8 |
| character | White or light yellow solid | Solubility | Soluble in benzene, toluene, chlorobenzene, nitrobenzene, acetone, ether, ethyl acetate, dioxane, etc. |
Purpose:
The primary product of this product is widely used in polyurethane coatings, in addition, it is also used in waterproof materials, sealing materials, pottery materials, etc; The polyurethane foam made of this product is used as a part of warm (cold) insulation, building materials, vehicles and ships; The refined products can be made into car bumper, buffer, synthetic leather, non plastic polyurethane, polyurethane elastic fiber, non plastic elastic fiber, film, adhesive, etc.
Preparation method:
With aniline as raw material, it reacts with formaldehyde, condenses in acidic solution, neutralizes with alkali, and then distills to obtain diaminodiphenylmethane, which is then prepared by reacting with carbonyl chloride, and then refined by distillation.
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