聚对苯二甲酸乙二醇酯-1，4环己烷二甲醇酯（PETG）由于其优异的性能，可作为一种优选的3D打印高分子材料，备受学者们的青睐。文章对PETG的打印工艺进行了研究，发现打印方向、打印厚度、打印温度、打印速度和填充密度等工艺参数都会对产品的性能产生显著影响，采用纤维、聚合物和石墨烯等共混改性方法对3D打印PETG材料进行改性研究可改善材料的耐疲劳性能、力学性能和热性能等。文章还对3D打印PETG在生物医学、机械加工和海洋等领域的应用研究以及再生利用的可行性研究进行了详细的综述。最后，文章对未来3D打印PETG的发展前景进行预测，期望能够为3D打印PETG材料的工业化应用提供指导。

Polyethylene terephthalate-1,4-cyclohexane dimethyl ester (PETG) can be used as a preferred polymer material for 3D printing due to its excellent properties, which has been favored by scholars. In this paper, the printing process of PETG was studied, and it was found that the printing direction, printing thickness, printing temperature, printing speed and filling density, and other process parameters would have a significant impact on the performance of the product. The modification of 3D printed PETG material was studied by blending modification methods such as fiber, polymer, and graphene to improve the fatigue resistance, mechanical and thermal properties of the material. The application research of 3D printing PETG in biomedicine, machining and marine fields as well as the feasibility study of recycling were reviewed in detail. Finally, the development prospect of 3D printing PETG in the future was predicted. It is expected to provide guidance for the industrial application of 3D printed PETG materials.