The invention discloses a biphase continuous medical
biodegradable magnesium alloy and TCP
composite scaffold material and a preparation method thereof.The preparation method comprises the following steps that TCP
powder and resin are mixed to obtain a TCP-resin mixture, a
photoinitiator and a dispersing agent are added into the TCP-resin mixture, and ball milling is conducted to obtain
slurry; performing 3D printing on the
slurry through a resin
light curing method to obtain a TCP-resin bracket;
sintering the TCP-resin
scaffold, and performing furnace cooling to
room temperature to obtain a TCP
porous scaffold; the preparation method comprises the following steps: calcining a TCP
porous scaffold in a mold, adding a degradable
magnesium alloy melt into the mold, and enabling the
magnesium alloy melt to fully flow into pores of the TCP
porous scaffold by adopting a pressure
permeation method, so as to obtain the biphase continuous medical
biodegradable magnesium alloy and TCP
composite scaffold material. The obtained biphase continuous medical
biodegradable magnesium alloy and TCP
composite scaffold material
magnesium alloy is degraded preferentially, enough space is provided for growth of new bones, along with degradation of the
magnesium alloy, the TCP porous
scaffold can still keep certain mechanical support, and it is ensured that
bone tissue obtains continuous structural support in the repairing process.