Isocyanate Proportions for a Water Blow Foam System

CALCULATION OF ISOCYANATE PROPORTIONS FOR A WATER BLOW-FOAM SYSTEM 

Polyether triol, 3000 MW Silicone surfactant Catalyst system A -ethylmorpholine DABCO 

Given the above formulation, find the amount of TDI 80 20 required to provide a TDI index of 100, 105 and 110. 

It is advisable to first calculate the equivalents of OH and NCO that are being utilized. 

In this case we have decided to use the above weights of polyol, surfactant and catalysts. Making use of the previously defined relationships For polyol  

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