Thermosets are used in the Additive Manufacturing technologies such as Vat Photopolymerization and Digital Light Synthesis (DLS) as well as Material Jetting and Binder Jetting. While the material offers many opportunities for innovative composite manufacturing, thermosets are highly cross-linked and irreversibly cured, which can represent challenges in producing 3D-printed parts at high rate and high quality. Therefore, knowledge about material science is crucial.
This week’s topic: Material Science of Thermosets
- Deep dive into the molecular structure and chemical reaction
- Relationship between cross-linking DensityThe mass density is defined as the ratio between mass and volume. density and material properties (Glass Transition TemperatureThe glass transition is one of the most important properties of amorphous and semi-crystalline materials, e.g., inorganic glasses, amorphous metals, polymers, pharmaceuticals and food ingredients, etc., and describes the temperature region where the mechanical properties of the materials change from hard and brittle to more soft, deformable or rubbery.glass transition, stiffness, end use temperatures)
- Important properties when working with thermosets
More Additive Manufacturing content by NETZSCH
Photopolymers used in the Additive Manufacturing technology Digital Light Synthesis (DLS) are challenging materials. Little is known so far about the consequences of increased temperatures, e.g., due to higher room temperatures. A research paper aims to investigate the influence of temperatures on such dual-Curing (Crosslinking Reactions)Literally translated, the term “crosslinking“ means “cross networking”. In the chemical context, it is used for reactions in which molecules are linked together by introducing covalent bonds and forming three-dimensional networks.curing resins and finds that the Photo-DSC is most effective in tracking the thermal conversion as well as to identify optimal exposure times. Read the article here!