| 초록 |
Rapid prototyping, also known as 3D printing, was developed in the lat 1970s. In recent days, on accout of development in computer aided design (CAD) and material sciences, the application of the 3D printing for both industrial and general public use has grown dramactically in the past decade. During 3D printing, the resin is deposited layer by layer based on the prerequisite and simultaneously polymerized by UV laser. At this time, the resin doesn't cure at all and som remains uncured. As a results, the mechanical properties of the final product may deteriorate. We have successfully produced products through SLA process by introducing an acrylic resin containing thermally curable functional groups to the existing resin. After the additional heat treatment, the properties of the final product were improved compared to the conventional products. In order to investigate the cause of the improvement of mechanical properties, we have characterized the materials through various methods. |
