The effect of temperature on the curing rate of unsaturated polyester
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As the temperature increases, the gel time and curing time of unsaturated polyester resins using methylethyl coperoxide/cobalt accelerators as the curing system decrease, and the curing rate increases. Ask how much the temperature needs to rise roughly for the curing time to be reduced by half Has anyone done any related experiments?
I haven’t done any experiments. Either use the Arrhenius equation, whose exponential term represents the effect of temperature on the reaction rate: lgk = -Ea/2.30R*(1/T) + C. Here, k is the reaction rate, Ea is the activation energy of the reaction, R is a constant, and T is the temperature; this equation allows one to determine the relationship between k and T. There is also a diagram that can be checked directly. Try raising the temperature by 10°C; the rate of most chemical reactions can increase by 2-4 times. Will polymerization explosion occur during this curing?
Does no one know? Push it yourself
The method we commonly use is to increase the temperature by 10 degrees every hour in the initial stage. Finally, maintain for 4 hours.
Basically, for every 10°C increase in temperature, the time is reduced by half
The faster the phone connection when the temperature is high: lol