As early as a few years ago, 3D printing technology became popular. As one of the most advanced manufacturing technologies, this technology makes the traditional manufacturing model mature. Over the years, governments and enterprises all over the world need to pay attention to and customize the development plan of 3D printing.
Compared with the mainstream FDM3d printing technology in the market, the earliest and most mature photocurable 3d printing technology has higher accuracy and printing speed. ChalesHull, an American, not only used the first photocurable 3D printer, but also developed the first photocurable 3D printer. The basic principle of light-cured 3D printing technology is to scan the liquid photosensitive resin with a certain wavelength of light beam by using the stacking molding of materials, and decompose the shape of the three-dimensional object into several plane layers, so that each layer of liquid photosensitive resin can be solidified and molded after scanning. However, where there is no light beam irradiation, it is still liquid, and finally each layer is piled up into the required target, and the material utilization rate can be close to 100%. ?
However, despite the great progress in accuracy and speed of light-cured 3D printing technology in recent years, there are still some factors that limit its development, and the biggest problem is the material. As mentioned above, photosensitive resin is the main material of vertical stereoscopic 3D printer. At present, the consumables used in light-cured 3D printers must have low volatility, low viscosity, good stability, fast curing, low shrinkage and good mechanical properties and thermal stability after curing. In addition, the printing process and its molded products should be non-toxic and non-irritating. Therefore, the development of photosensitive resin has become one of the core issues in the future of light-cured 3D printers.