Photoinitiator for Three-Dimensional Printing

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (= DPTBP) is a photoinitiator that generates radicals by the activation of not only UV but also visible light sources (up to 420 nm).¹⁾ It has the advantage of being almost colorless due to its narrow absorption region in visible light. These features help in manufacturing transparent 3D objects through stereolithography printing. For instance, it has been reported that DPTBP/PETA/HDODA mixed light-curable resin using pentaerythritol tetraacrylate (= PETA) and 1,6-hexanediol diacrylate (= HDODA) as monomers have both excellent mechanical properties and transparency.¹⁾ In addition, DPTBP has also been used for three-dimensional printing of fused silica glass.²⁾

Related Products

D3358

Diphenyl(2,4,6-trimethylbenzoyl)phosphine Oxide (= DPTBP)

P2084

Pentaerythritol Tetraacrylate (= PETA)

B2936

1,6-Hexanediol Diacrylate (= HDODA)

Related Product Category Pages

• Photo-Radical Polymerization Initiators
• Diacrylic Monomers, Dimethacrylic Monomers

References

• 1) A visible light-curable yet visible wavelength-transparent resin for stereolithography 3D printing
  • H. K. Park, M. Shin, B. Kim, J. W. Park, H. Lee, NPG Asia Mater. 2018. 10. 82.
• 2) Three-dimensional printing of transparent fused silica glass
  • F. Kotz, K. Arnold, W. Bauer, D. Schild, N. Keller, K. Sachsenheimer, T. M. Nargang, C. Richter, D. Helmer, B. E. Rapp, Nature 2017, 544, 337.

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