|
abbreviation |
HDI |
|
molecular formula |
C8H12N2O2 |
|
molecular weight |
168.19 |
|
CAS number |
822-06-0 |
Product Features
|
Property |
Value |
|
Exterior |
Colorless or light yellow liquid |
|
Boiling point@101kPaa |
255 ° C |
|
molecular mass |
168.2 |
|
Freezing point |
-67 ℃ |
|
NCO% |
49.7%～49.9% |
|
Viscosity@25 ℃ |
3mPa · s |
|
Relative density |
1.05 |
|
Flash point (open cup) |
135 ℃ |
|
Refractive Index@20 ℃ |
1.4530 |
|
Specific heat capacity@25 ℃ |
1.75J/ （ g · K ） |
|
Boiling point@0.67kPa @1.33kPa @2.67kPa |
112 ℃ 120～125 ℃ 140～142 ℃ |
|
Vapor Pressure@20 ℃ |
1.3～1.5Pa |
|
Hydrolyzed chlorine |
≤0.03% |
|
purity |
≥99.6% |
application
HDI is an aliphatic isocyanate, and the resin made of it has obvious yellowing resistance.
Derivatives of HDI can be used as isocyanate curing agents, which are divided into three types: HDI monomer-TMP, HDI biuret, and HDI trimer. They are curing agents for high-grade polyurethane adhesives and coatings. In particular, the trimer as a curing agent has the properties of low viscosity and easy storage, and the finished products have excellent heat resistance, light resistance, weather resistance and solvent resistance.
Package
200kg/drum