Environment-friendly material for 3D printing

The invention provides an environment-friendly material for 3D printing. The environment-friendly material for 3D printing is prepared from, by weight, 100 parts of polylactic acid (PLA), 12-18 parts of a binding agent, 10-20 parts of a cross-linking agent, 2-5 parts of a coupling agent, 0.1-0.5 part of a plasticizer and 0.1-0.5 part of a degassing agent. By the adoption of the novel biodegradable material, namely the polylactic acid, the degradation rate is high, pollution to the environment can be reduced, resources are saved, and resource recycling is promoted; entity parts obtained through printing of the environment-friendly material have the advantages of being good in plasticity, easy to form, excellent in mechanical performance and physical performance and high in precision, and the production cost can be greatly reduced; and meanwhile, pollution to the environment is reduced, resources are saved, resource recycling is promoted, and the application and development space of 3D printing is broadened gre