TY - JOUR
T1 - Simulation of nonlinear polyurethane production in a twin-screw extruder
AU - Vargas, René O.
AU - Vivaldo-Lima, Eduardo
AU - Manero, Octavio
N1 - Funding Information:
The authors wish to acknowledge financial support through research project grants from the National Council for Science and Technology (CONACYT) of Mexico to E.V.-L. and O.M., and the graduate scholarship granted to R.O.V. by CONACYT. Financial support from DGAPA-UNAM, through project PAPIIT IN106302, is also acknowledged.
PY - 2006/2
Y1 - 2006/2
N2 - The production of nonlinear polyurethane from the reaction of methyl diisocyanate (MDI) with a mixture of a polyester and 1,4-butanediol was studied in a closely intermeshing, counter-rotating twin-screw extruder, using an ideal reactor model consisting of a series of continuous stirred tank reactors (CSTR) coupled to a previously developed kinetic-probabilistic model. The kinetic part of the model allows for the calculation of concentrations of all species. A recursive probabilistic model is used to calculate the number and weight average molecular weights. Allophanate reactions, as well as gel formation due to crosslinking, are considered in the model. Pressure, flow rate, and polymer properties along the extruder can be calculated with the model.
AB - The production of nonlinear polyurethane from the reaction of methyl diisocyanate (MDI) with a mixture of a polyester and 1,4-butanediol was studied in a closely intermeshing, counter-rotating twin-screw extruder, using an ideal reactor model consisting of a series of continuous stirred tank reactors (CSTR) coupled to a previously developed kinetic-probabilistic model. The kinetic part of the model allows for the calculation of concentrations of all species. A recursive probabilistic model is used to calculate the number and weight average molecular weights. Allophanate reactions, as well as gel formation due to crosslinking, are considered in the model. Pressure, flow rate, and polymer properties along the extruder can be calculated with the model.
KW - Crosslinking
KW - Modeling
KW - Polyurethane
KW - Reactive extrusion
KW - Twin-screw extruder
UR - http://www.scopus.com/inward/record.url?scp=30844472620&partnerID=8YFLogxK
U2 - 10.1080/03602550500371471
DO - 10.1080/03602550500371471
M3 - Artículo
AN - SCOPUS:30844472620
SN - 0360-2559
VL - 45
SP - 9
EP - 21
JO - Polymer - Plastics Technology and Engineering
JF - Polymer - Plastics Technology and Engineering
IS - 1
ER -