Hwangbo, Hyeonwoo published the artcileDigital light processing 3D printing of multi-materials with improved adhesion using resins containing low functional acrylates, Formula: C15H20O6, the publication is Korean Journal of Chemical Engineering (2022), 39(2), 451-459, database is CAplus.
Abstract: Digital light processing (DLP) 3D printing has received increasing attention due to high-resolution printing capability, mass productivity, and cheap equipment cost. Most of all, the layer resolution less than 50μm overwhelms 200-300μm layer resolution of its competitive technol., filament deposition modeling (FDM) 3D printing. One of the easiest ways to improve mech. property is the use of multi-materials that complement each other’s weak property However, DLP 3D printing of multi-material printouts with reliable adhesion has been largely unexplored. In this study, we compared the mech. properties of four pairs of multi-materials consisting of two different materials of the same thickness. A composition with highest modulus and ultimate strength was fixed as the first half layer, and the acrylate of the composition for the other half layer was modulated with a monomer having a functionality between 1 and 3. If the acrylate monomer’s functionality for the other half layer was less than three, the multi-material printout showed nearly averaged mech. property of each material. We speculate that low functional acrylate with lower viscosity allows sufficient polymerization at the interface, enabling reliable adhesion. This approach that enables successful multi-material printing with improved adhesion and complementary mech. properties will extend the use of DLP 3D printing in a broad range of industrial application that requires both sophisticated shape and mech. strength.
Korean Journal of Chemical Engineering published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Formula: C15H20O6.
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