Antibacterial PLA 3D printing composite material

The invention relates to the technical field of PLA 3D printing composite materials, in particular to an antibacterial PLA 3D printing composite material which is prepared from the following raw materials in parts by weight: 100 parts of polylactic acid, 1-5 parts of calcium carbonate, 1-5 parts of a modified sapindus saponin antibacterial agent, 1-2 parts of a compatilizer, 1-2 parts of a lubricant and 2-3 parts of a flexibilizer, wherein the modified sapindus saponin antibacterial agent is a sapindus saponin-silver ion complex coated with nano titanium dioxide. The antibacterial PLA 3D printing composite material has a relatively good antibacterial effect. 本发明涉及PLA3D打印复合材料技术领域，具体涉及一种抗菌PLA 3D打印复合材料，由以下原料组成：聚乳酸100份、碳酸钙1～5份、改性无患子皂苷抗菌剂1～5份、相容剂1～2份、润滑剂1～2份、增韧剂2～3份；所述改性无患子皂苷抗菌剂为包覆了纳米二氧化钛的无患子皂苷-银离子络合物。该抗菌PLA3D打印复合材料具有较好的抗菌效果。