PMDI 200 for The Production of Polyurethane Elastomers

Product Overview

Description

PMDI 200 for The Production of Polyurethane Elastomers

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.

Polymethylene polyphenyl polyisocyanate Basic information
Product Name:	Polymethylene polyphenyl polyisocyanate
CAS:	9016-87-9
MF:	C8H7NO2
MW:	149.14668
EINECS:	922-627-7
Mol File:	9016-87-9.mol
Polymethylene polyphenyl polyisocyanate Chemical Properties
Boiling point	392 °C5 mm Hg
density	1.2 g/mL at 25 °C(lit.)
vapor density	8.6 (vs air)
refractive index	n20/D 1.634
Fp	>230 °F

 

 

specification

	Unit	Content
Appearance	-	Brownish Liquid
Viscosity(25ºC)	(mPa·s)	150-250
NCO Content	%	30.5-32.0
Density (25ºC)	(g/cm3 )	1.220-1.250
Acid Content	%	≤0.030
Hydrolysable Ch lorine	%	≤0.20

 

 

PMDI of Specification

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

 

Application

Polymerized MDI Isocyanate PM200 is a diisocyanate-diphenylmethane(MDI)-based composition containing some higher functionality isocyanates. The functionality is about 2.6-2.7. It is a brown liquid at ambient temperatures.

Polymerized MDI Isocyanate PM200 can be widely used in the production of rigid PU foam heat-insulating materials; also used in isocyanurate foam, paints, adhesives, structural foam, cellular integral skin foam, automotive bumper and interior parts,

high-resilience foam and synthetic wood, etc. Due to its unique composition structure, Polymerized MDI Isocyanate PM200 can provide better flowability. It is, therefore, particularly suitable for the production which require strict flowability of systems.