The Effect of Zinc Oxide on DLP Hybrid Composite Manufacturability and Mechanical-Chemical Resistance

Janis Baronins*, Maksim Antonov, Vitalijs Abramovskis, Aija Rautmane, Vjaceslavs Lapkovskis, Ivans Bockovs, Saurav Goel, Vijay Kumar Thakur, Andrei Shishkin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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The widespread use of epoxy resin (ER) in industry, owing to its excellent properties, aligns with the global shift toward greener resources and energy-efficient solutions, where utilizing metal oxides in 3D printed polymer parts can offer extended functionalities across various industries. ZnO concentrations in polyurethane acrylate composites impacted adhesion and thickness of DLP samples, with 1 wt.% achieving a thickness of 3.99 ± 0.16 mm, closest to the target thickness of 4 mm, while 0.5 wt.% ZnO samples exhibited the lowest deviation in average thickness (±0.03 mm). Tensile stress in digital light processed (DLP) composites with ZnO remained consistent, ranging from 23.29 MPa (1 wt.%) to 25.93 MPa (0.5 wt.%), with an increase in ZnO concentration causing a reduction in tensile stress to 24.04 MPa and a decrease in the elastic modulus to 2001 MPa at 2 wt.% ZnO. The produced DLP samples, with their good corrosion resistance in alkaline environments, are well-suited for applications as protective coatings on tank walls. Customized DLP techniques can enable their effective use as structural or functional elements, such as in Portland cement concrete walls, floors and ceilings for enhanced durability and performance.

Original languageEnglish
Article number4679
Issue number24
Early online date12 Dec 2023
Publication statusFirst published - 12 Dec 2023

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  • acidic environment
  • additive manufacturing
  • alkaline environment
  • corrosion
  • DLP
  • photocured resin
  • tensile test
  • ZnO


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