Preparation method of wave-shifting optical fiber

The invention discloses a preparation method of a wave-shifting optical fiber, which comprises the following steps: mixing a plastic matrix, a wave-shifting agent and an initiator, putting into an anaerobic bottle, introducing argon into the bottle, sealing, and fully mixing; placing the anaerobic bottle in an environment at the temperature of 60 DEG C or above to react for 48 hours or above, then heating to 85 DEG C or above at the speed of 1-5 DEG C/h, and continuing to react for 72 hours or above; continuously heating the anaerobic bottle to 120 DEG C or above, reacting for 6 hours or above, and cooling to room temperature at the speed of 1-5 DEG C/h; and after the material in the anaerobic bottle is completely cooled, breaking the anaerobic bottle to obtain a transparent plastic scintillator, and carrying out wire drawing processing on the transparent plastic scintillator to prepare the wave-shifting optical fiber. According to the present invention, the wave shifting agent is uniformly dispersed in the p