Curing with UV radiation

摘要

Stereolithography is the 3D printing process with the longest history of use to date. A workpiece is gradually lowered into a liquid photopolymer bath. A UV laser that initiates hardening of the polymer is used to create the layered structure. The 3D objects formed in this way reproduce the required shape exactly. The materials currently available are not usually very temperature- and light-resistant, nor are they particularly elastic. This offers opportunities for UV-curing resins based on polyurethane raw materials from Covestro.