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<p>Based on prior studies of benzoxazine complexes with metal ions, this work investigates the effects of Fe<sup>2+</sup> and Cu<sup>2+</sup> ions on the dielectric properties of composites for stereolithographic 3D printing. BM was complexed with metal salts containing chloride (BM-FeCl<sub>2</sub> and BM-CuCl<sub>2</sub>) or sulfate (BM-FeSO<sub>4</sub> and BM-CuSO<sub>4</sub>) counter ions and incorporated into a commercial resin at 1 phr. The resulting composites exhibited dielectric constants ranging from 9 to 11, compared to 4.5 for commercial resin. Additionally, complexation kinetics differed with counter ions. These findings highlight the roles of both metal ions and counter ions in tuning the dielectric properties.</p> Graphical abstract <p></p>

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Effect of Fe2+ and Cu2+ benzoxazine complexes and counter ions on the dielectric properties of SLA-printed composites

  • 期刊论文

  • 发表日期：

    2025年10月2日

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  • Thanapat Chomchatwarl,
  • Kankavee Sukthavorn,
  • Nollapan Nootsuwan,
  • Chatchai Veranitisagul,
  • Apirat Laobuthee

摘要

Based on prior studies of benzoxazine complexes with metal ions, this work investigates the effects of Fe2+ and Cu2+ ions on the dielectric properties of composites for stereolithographic 3D printing. BM was complexed with metal salts containing chloride (BM-FeCl2 and BM-CuCl2) or sulfate (BM-FeSO4 and BM-CuSO4) counter ions and incorporated into a commercial resin at 1 phr. The resulting composites exhibited dielectric constants ranging from 9 to 11, compared to 4.5 for commercial resin. Additionally, complexation kinetics differed with counter ions. These findings highlight the roles of both metal ions and counter ions in tuning the dielectric properties.

Graphical abstract