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Search Publications by: Thomas Kolibaba (Assoc)

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Displaying 1 - 8 of 8

Results of an Interlaboratory Study on the Working Curve in Vat Photopolymerization

March 18, 2024
Author(s)
Thomas Kolibaba, Jason Killgore, Benjamin Caplins, Callie Higgins, Uwe Arp, C Cameron Miller, Yuqin Zong
The working curve informs resin properties and print parameters for stereolithography, digital light processing, and other photopolymer additive manufacturing (PAM) technologies. First demonstrated in 1992, the working curve measurement of cure depth vs

Polybutadiene Click Chemistry: A Rapid and Direct Method for Vat Photopolymerization

October 10, 2023
Author(s)
Levi Moore, Van Michael Saludo, Oliver Grasdal, Kayleen Smith, Thomas Kolibaba, Jason Killgore, Jacob Marcischak, Jeremy Snyder, Gregory Yandek, Kamran Ghiassi
Thiol-ene click chemistry was utilized to crosslink unmodified commercial liquid polybutadiene, and complex geometries were printed using vat photopolymerization. Polybutadiene contains reactive moieties as a result of its production process, and were used

Fire Protection of Wood with an Environmentally Benign UV-Cured Polyelectrolyte Complex

July 7, 2023
Author(s)
Sarah Fisher, Danixa Rodriguez-Melendez, Ethan Iverson, Thomas Kolibaba, Jaime Grunlan
The use of wood in home and commercial structures has continued to grow in recent years, but its flammability poses a threat to lives and property. Previous attempts to flame retard wood have utilized harmful halogenated chemistries or required complex

A Data-Driven Approach to Complex Voxel Predictions in Grayscale Digital Light Processing Additive Manufacturing Using U-nets and Generative Adversarial Networks

July 6, 2023
Author(s)
Jason Killgore, Thomas Kolibaba, Benjamin Caplins, Callie Higgins, Jake Rezac
Machine learning models such as U-nets like the pix2pix conditional generative adversarial network (cGAN) are shown to predict 3D printed voxel geometry in digital light processing (DLP) additive manufacturing. The models are trained on microscopic voxel

Influence of Fluorescent Dopants on the Vat Photopolymerization of Acrylate-based Plastic Scintillators

July 3, 2023
Author(s)
Thomas Kolibaba, Jason Killgore, Caleb Chandler, Dominique Porcincula, Michael Ford, Benjamin Fein-Ashley, Jason Brodsky, Alan Sellinger
Plastic scintillators, a class of solid-state materials used for radiation detection, were additively manufactured with vat photopolymerization. The photopolymer resins consisted of a primary dopant and a secondary dopant dissolved in a bisphenol A

Synergistic Fire Resistance of Nanobrick-wall Coated 3D Printed Photopolymer Lattices

March 16, 2023
Author(s)
Thomas Kolibaba, Callie Higgins, Zack Buck, Dash Weeks, Jason Killgore
Photopolymer additive manufacturing has become the subject of widespread interest in recent years due to its capacity to enable fabrication of difficult geometries that are impossible to build with traditional modes of manufacturing. The flammability of

Sustainable Additive Manufacturing of Polyelectrolyte Photopolymer Complexes

January 29, 2023
Author(s)
Thomas Kolibaba, Jason Killgore, Callie Higgins
Polyelectrolyte complexes (PECs), assemblies of oppositely charged polymers with powerful properties and wide-ranging applications, are currently not melt-processable via any conventional means and have been limited commercially to applications only as

Characterizing light engine uniformity and its influence on LCD-based vat photopolymerization printing

December 27, 2022
Author(s)
Benjamin Caplins, Callie Higgins, Thomas Kolibaba, Uwe Arp, C Cameron Miller, Dianne L. Poster, Clarence Zarobila, Yuqin Zong, Jason Killgore
Vat photopolymerization (VP) is a rapidly growing category of additive manufacturing. As VP methods mature the expectation is that the quality of printed parts will be highly reproducible. At present, detailed characterization of the light engines used in