Complaint
product name | Polymethylene polyphenyl polyisocyanate , referred to as PAPI;polymeric MDI;light yellow to brown viscous liquid. There is a pungent odor. This product is used to manufacture polyurethane adhesives, and can also be directly added to rubber adhesives toimprove the adhesion between rubber and nylon or polyester threads. | |||
Synonyms | isocyanate 580;polymeric isocyanate;Polymeric diphenylmethane diisocyanate;PMDI;MDI oligomer;polymeric 4,4'-methylenediphenyl diisocyanate;polymethylenepolyphenol isocyanate;polyphenyl isocyanate;PAPI;Polymethylene polyphenylisocyanate | |||
Viscosity (25ºC)/mPa s | 150~250 | |||
Isocyanate content (-NCO)/% | 30.5~32.0 | |||
Density (25ºC) / (g/cm3) | 1.220~1.250 | |||
acidity/% | ≤0.030 | |||
Hydrolyzed / % | ≤0.20 | |||
name | appearance | -NCO CONTENT (%) | average functionality | VISCOSITY(25ºC,mpa.s) | Density (25ºC) / (g/cm3) | ACIDITY (%) |
pm200 | brown liquid | 30.2-32.0% | 2.6-2.7 | 150-250 | 1.22-1.25 | ≤0.05 |
m-20s | brown liquid | 30.5-31.5% | 2.7 | 170-230 | 1.22-1.24 | ≤0.04 |
44V20L | brown liquid | 30.5-32.5% | 2.6-2.7 | 160-240 | 1.22-1.24 | ≤0.04 |
PAPI 27 | brown liquid | 30.9-32.1% | 2.7 | 150-220 | 1.22-1.24 | 0.015-0.025 |
m-200 | brown liquid | 30.8-31.8% | 2.7 | 150-250 | 1.22-1.24 | ≤0.04 |
PAPI 135 | brown liquid | 30.9-32.1% | 2.7 | 150-220 | 1.22-1.24 | 0.015-0.025 |
