The invention relates to a 1-3 composite PZT (piezoelectric)
fiber /
polymer composite damping material and a preparation method thereof, belonging to the field of composite materials. The composite damping material comprises a plurality of PZT fibers polarized along the length direction and a
polymer layer coated outside the PZT fibers, and two ends of each PZT
fiber are connected with an externalresistor via electrodes led out of the two ends; and the resistance of
external resistor is determined according to the formula (I). The PZT property can be obtained by adopting the polarization method along the length direction of the PZT fibers, the external matching
resistor is connected in the way of leading out the electrodes via organic conductive
silver paste, under the condition that the damping property of the composite damping material is matched with external impedance, the
damping factor can be improved by 0.1; under the condition of increasing the applied force, the
damping factor can be improved; the greater the storage modulus difference between an
organic matter matrix and the PZT fibers is, the more obvious the damping effect is; and the composite damping material can be used as a vibration-damping and
noise-reducing material to be applied in the fields of trains, vehicles and the like.