Photochromic material for 3D printing and preparation method and application method thereof

The invention discloses a photochromic material for 3D printing and a preparation method and an application method thereof. The photochromic material for 3D printing comprises the following componentsin percentage by mass: 10-50% of cyclotrimethylolpropane acrylate, 20-60% of dipropylene glycol diacrylate, 6-18% of polyethylene glycol-400 diacrylate, 0.5-20% of photochromic powder, 0.5-6% of a photoinitiator and 0.05-3% of a light absorber. The photochromic powder and the photosensitive resin in the photochromic material for 3D printing can be uniformly blended, so that a three-dimensional formed object is high in precision, smooth in surface and free of cracks, and has reversible photochromic performance. The material is used for 3D printing manufacturing and has a huge application prospect in the aspect of anti-counterfeiting identification of a 3D structure. 本发明公开了一种3D打印用光致变色材料及其制备方法及其应用方法，3D打印用光致变色材料按质量百分比组份包括：环三羟甲基丙烷丙烯酸酯10-50％，二丙二醇二丙烯酸酯20-60％，聚乙二醇(400)二丙烯酸酯6-18％，光致变色粉0.5-20％，光引发剂0.5-6％，光吸收剂0.05-3％。本3D打印用