In-depth analysis of the mathematical model of polyester thermosets curing

Numerical study of the thermal degradation of isotropic and anisotropic polymeric materials

“…Note, however, that many other researchers have also used a first-order polymerization kinetics albeit disregarding the diffusion of monomers in their studies of polymer curing [17], deprotection reaction of polymers and the diffusion of acids in chemically amplified resists [24] and frontal polymerization [18]. Costa et al [19] accounted for the diffusion of monomers in their one-dimensional steady-state studies of styrene polymerization in tubular reactors, assumed that the polymer does not diffuse, considered a polymerization kinetics which is thermally initiated and is terminated by combination, and a thermal conductivity that is a function of the temperature and monomer concentration, whereas Kosar and Gomzi [23] neglected monomer diffusion in their one-dimensional studies of polyester thermosets curing in cylindrical-polar coordinates, used an Arrhenius reaction rate model which is similar to Eq. (4), and assumed constant thermal capacity and heat conductivity.…”

Selección de resinas de poliéster insaturado para procesos de transferencia de resina en molde cerrado

“…Un aumento del catalizador genera mayores pendientes al inicio de la fase de endurecimiento por el aumento en la velocidad de reacción. En consecuencia se consiguen tiempos de polimerización más cortos (Kosar & Gomzi, 2004).…”

Analysis and Control of Heat Transfer in an Industrial Composite Mold in RTM Polyester Automotive Process

“…Indeed poor control of this transfer can lead to an unsound polymerization of the piece and can also alter the mold. Work was carried out to determine the cure kinetics, to reduce gradients in the thickness of the piece [8][9][10], and finally to find an optimal cycle of temperature for the resin. However, in the case of composite molds which possess a low thermal conductivity the nature of the mold must be taken into account to determine the cycle of temperature to be imposed to the cooling fluid.…”