Diy-blending time

Wj fraction of resin at the stage b (absorption of plasticizer) Wj fraction of resin at a stage 0 (partial gelation) 

Tq temperature at which the rate of the first step (a - b) is at maximum Tf temperature at which the rate of the fusion step (c - d) is at maximum t time 

Ea activation energy of the second stage of gelation step (b c) 

The above set of equations was used to model viscosity tluoughout the processes leading to fusion. Viscosity was calculated using the following equation  

Ucaic = WpVp + WfVi + W2V2 + W3V3 = W, V, + W2V3 + W3V3 [16.20] 

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