Recovery method of scrapped bulletproof helmets

The invention relates to a method for recycling a scrapped bulletproof helmet, which comprises the following steps: step 1, disassembling the scrapped bulletproof helmet to obtain a helmet main body, step 2, treating a polyurea coating of the helmet main body, step 3, performing primary degradation on the helmet main body, step 4, performing secondary degradation on the helmet main body, and step 5, performing drying treatment on recycled fiber cloth. According to the recycling method, firstly, the polyurea coating on the surface of the bulletproof helmet is treated, after the polyurea coating on the surface of the bulletproof helmet is treated, diffusion of degradation liquid in the bulletproof helmet is facilitated, the degradation efficiency of the bulletproof helmet can be greatly improved, cutting treatment does not need to be conducted on the scrapped bulletproof helmet through the method, and the cost is reduced. The treatment difficulty of the bulletproof helmet is reduced, aramid fibers or polyethyle