Preparation of ceramic slurry for 3D printing, and 3D printing photocuring molding method thereof

• Main Author: LI HONGSHU
• Format: Patent
• Language: Chinese; English
• Published: 23.02.2021
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE

The invention discloses ceramic slurry for 3D printing. The ceramic slurry comprises the following components in percentage by mass: 75-82% of ceramic powder and 18-25% of an organic matter mixture, wherein the ceramic powder is aluminum oxide powder, zirconium oxide powder or silicon dioxide powder, and the organic matter mixture comprises the following components in parts by mass: 70-90 parts ofa photosensitive resin pre-mixture, 0.1-1 part of a photoinitiator, 1-3 parts of a dispersing agent and 5-40 parts of polyethylene glycol. The ceramic slurry for 3D printing is uniform in dispersion,high in powder loading capacity, short in curing time and more environmentally friendly. 本发明公开了一种3D打印用陶瓷浆料，包括如下质量分数的组分：陶瓷粉体75-82％，有机物混合体18-25％。陶瓷粉体为氧化铝粉末、氧化锆粉末或二氧化硅粉末。有机物混合体包括如下质量份数的组分：光敏树脂预混合物70-90份、光引发剂0.1-1份、分散剂1-3份和聚乙二醇5-40份。本发明中3D打印用陶瓷浆料分散均匀，具有较高的粉末装载量，且固化时间较短，更加绿色环保。