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Additive Manufacturing of Two-Part Reactive Resin Systems


Title: Additive Manufacturing of Two-Part Reactive Resin Systems

Authors: Kody M. Neu, Dallas J. Patton, Alex T. Hart, Luke R. Gibbon, Eric S. Hall, Dean C. Webster, Chad. A Ulven

DOI: 10.33599/nasampe/c.23.0214

Abstract: Additive manufacturing (AM) is an increasingly reliable form of manufacturing parts and structures. With its ability to produce custom parts that have been previously unmakeable with traditional manufacturing methods, it opens many possibilities in a variety of industries. There are two common forms of additive manufacturing in wide application, stereolithography (SLA) and fused deposition modeling (FDM). Because of their superior mechanical properties, thermoset resins are more attractive than thermoplastic materials for certain applications. Thermoset resins are commonly used in SLA printing, but have minimal use in other AM technologies. This work compared three types of two-part reactive thermoset resin systems. In each system, the printing processes were tailored to induce sufficient mix and dwell time for achieving high modulus and strength along with a sufficiently short cure times for deposition on a 3D printer platform. The evolution of the printer developed for this study is described in detail. Mechanical characterization included tensile and flexural properties. Finally, differential scanning calorimetry (DSC) testing was performed to determine the degree of cure of the samples. This provided further insight into the homogeneity of the mixture performed during the printing process. The greater the mix, the better the cure and print consistency, which lead to greater mechanical performance.

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Conference: CAMX 2023

Publication Date: 2023/10/30

SKU: TP23-0000000214

Pages: 12

Price: $24.00

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