HMDI is raw material for polyurethanes. Polyurethane resins based on HMDI have good mechanical strength. They are resistant to abrasion and hydrolysis, and retain gloss and physical properties upon weathering. A unique feature of HMDI is its ability to form optically clear polyurethanes when combined with suitable polyol coreactants. Products based on HMDI may be useful in coatings for flooring, roofing, maintenance and textile applications as in cast elastomers, potting and encapsulation compounds, optical products, medical
products, adhesives and sealants.
HMDI


  • 4,4'-dicyclohexyl methane diisocyanate (HMDI)

     

    Product name4,4'-dicyclohexyl methane diisocyanate (HMDI)
    CAS NO.5124-30-1
    Molecular FormulaC8H12N2O2
    AppearanceColorless or pale yellow liquid
    Product Quality

    Parameters                                                          Standard                                   

    Appearance                                                          Colorless or pale yellow liquid

    Density at 25 ℃                                                    ~ 1.07 g/cm3                                     

    Viscosity at 25 ℃                                                  ~ 30 mPa·s                                       

    Freezing Point                                                      ≤25 ℃                                       

    HMDI Purity(%(A/A) )                                           ≥99.5                                   

    NCO Content (%)                                                 ≥31.8        

    Chromatic Number(APHA)                                   ≤30

    Hydrolysable Chloride(%)                                     ≤0.0010   

    Total Chlorides(%)                                                 ≤0.10                            

    UsesHMDI may be useful in coatings for flooring, roofing, maintenance, and textile applications as in cast elastomers, potting and encapsulation compounds, optical products, medical products, adhesives, and sealants.
    Packaging200KG Metal Drum, Other packages available according to customer needs.
    Storage 

    HMDI is sensitive to moisture and therefore should be stored in its sealed original containers. Water or moisture in the air reacts with the product and generates pressure. If partially filled containers are stored, it is advisable to blanket the liquid surface with dry nitrogen before sealing.

    At approx. 25 ℃, crystals will generate in HMDI and set on the bottom. The product should therefore be heated to 40 ~ 50 ℃ and homogenized before use. This process also allows the use of the product which has already crystallized.