Recycling method of thermosetting resin based fiber reinforced composite material in mild condition

The invention discloses a recycling method of a thermosetting resin based fiber reinforced composite material in a mild condition and aims to solve the technical problem that existing thermosetting resin based composite material recycling methods are long in reaction time. The recycling method includes: weighing potassium hydroxide according to a mass ratio of a composite material to potassium hydroxide being 1:0.54, adding potassium hydroxide and monoethanolamine into a reaction kettle, adding a catalyst and magneton, adding the composite material into a mixed solution, rising temperature to160-170 DEG C, allowing constant-temperature reaction for 80-90min, separating a solid product in the mixed solution, using acetone to wash the collected solid product to remove matrix resin residue on the surface of carbon fiber in the solid product and adhered degradation liquid, using deionized water to perform ultrasonic cleaning for 2-3 times, putting the solid product after being cleaned into an oven at 60 DEG C for