PPDI Cas 104-49-4, , isocyanate-type curing agent for polyurethane PPDI 104-49-4 curing agent
PPDI Cas 104-49-4, , isocyanate-type curing agent for polyurethane PPDI 104-49-4 curing agent

HARTDUR 120 (PPDI)

Common Name:PPDI
Similar Name::1,4-Phenylene diisocyanate
Molecular Formula:C8H4N2O2
CAS Number:104-49-4

HARTDUR 120 (PPDI) is a premium diisocyanate employed in polyurethane (PU) applications. Products derived from PU systems incorporating HARTDUR 120 are capable of enduring elevated temperatures under conditions of high-speed and continuous operation. This makes HARTDUR 120 an exemplary solution for requirements demanding superior aging resistance, high load-bearing capabilities, and exceptional thermal stability. It is especially suitable for critical wheel applications subjected to intense stress, such as those found in construction vehicles, aircraft tires, and high-speed guide wheels.

Package

20kg, 40kg/iron drum.

It can be packaged on demand. Please inquire.      


HARTDUR 120 (PPDI / 1,4-Phenylene diisocyanate) is supplied in the form of yellowish white to white, crystalline flakes or powder. Its vapor pressure at room temperature is below 10-4mbar. Permissible in the air at working places according to the Federal Republic of Germany is 0.01 ppm = 0.087 mg/m3. This value is not allowed to exceed even for short periods. Being exceptionally reactive, PPDI must be treated as a dangerous material and it must therefore be handled with care. The potential risks of HARTDUR 120 (PPDI) depend mainly on the extent to which isocyanate dust, vapors, or aerosols are formed during the processing of this product. The circumstances and operations in which workers may be exposed to HARTDUR 120 (PPDI) in any of these forms are as follows: dust may rise from the solid material while it is being weighed or introduced into reaction vessels; vapors and aerosols are formed in the cross linking of hot prepolymer batches containing an excess of PPDI and in the production of castings (the aerosols owe their formation to the cooling and condensation of hot isocyanate vapors).


Chemical Name1,4-Phenylene diisocyanate
CAS No.104-49-4
Molecular weight  (g/mol)160.1296
AppearanceWhite flake crystal
NCO Content (%)52.5%
Melting Point (°C)94 ~ 99
Density (g/cm3)1.17g/cm3 
Total Chlorine Content (%)0.1 max.
Hydrolysable Chlorine Content (%)0.03 max.
Purity (%)99 min
Package40 KGS/iron drum
Self Life6 months since production date

Storage

Caution: HARTDUR 120 (PPDI) is very sensitive to moisture. Water reacts with all diisocyanates to form insoluble urea derivatives. HARTDUR 118(TODI) should be stored in tightly sealed containers in cool and dry conditions. Do not put PPDI along with food and avoid exposing in an environment above 30℃. After using, the lid must be sealed immediately in case of dysfunction. Under suitable external conditions, PPDI is valid for six months at least with effect from the date on which it’s delivered.

 

 

  • PU wheels and rollers subjected to high stress
  • Damping components
  • Sealing components with high heat and pressure resistance
  • Other high-performance PU/TPU products (tear-resistant, highly wear-resistant, heat-resistant, etc.)