Faculty Datasets

Document Type

Dataset

DOI

10.20429/data.2026.03

Publication Date

9-4-2026

Description

3D printing via stereolithography (SLA) enables high-resolution polymer components, but as-printed parts may exhibit incomplete polymerization and reduced mechanical performance. This study investigates the effects of UV post-curing time on SLA-printed elastic photopolymer resin. Specimens were evaluated using Differential Scanning Calorimetry (DSC), uniaxial tensile testing (ASTM D412 Type C), and Durometer Type M hardness testing. Results show that increased post-curing enhances crosslink density, tensile strength, elastic modulus, and hardness, while extended curing may reduce ductility. An optimal post-curing window balancing stiffness and flexibility was identified. Testing datasets include DSC (dsc/), tensile testing (tensile/), and hardness testing (hardness/) results for uncured and post-cured (0, 5, 10, and 15 min) specimens.

Data Collection Start Date

4-2026

Data Collection End Date

4-2026

Methodology

MAGFORMS Elastic 600 photopolymer resin was used for SLA printing on an ELEGOO Saturn LCD 3D printer, which uses a layer-wise curing approach with a 405 nm UV integrated light under the transparent resin tank. Post-curing was carried out using a SainSmart UV Curing Chamber (UV-LED, 405 nm wavelength). The chamber was heated to 60C and delivered 40W light power to specimens on a turntable (15 rpm) for durations of 5, 10, and 15 minutes. Thermal analysis was performed using a TA-DSC 250 instrument: specimens (~50 mg) were placed in aluminum pans and subjected to a heat-cool-heat cycle from -20C to 250C at a heating rate of 10C/min and cooling rate of 5C/min under nitrogen (N2) atmosphere. Tensile properties were evaluated using a uniaxial tensile tester (Mark-10 EasyMESUR motorized Test Stand) with a 100 N load cell, at room temperature with a constant crosshead speed of 1 in./min; load and displacement were recorded. Hardness measurements were performed at room temperature on thin (3 mm thick) specimens using a Type-M Durometer. Data were analyzed following standard processes for DSC, tensile testing, and hardness testing using MS Excel.

Related Content

Amesimenu, R.; Nwogu, J.; Gong, H. Effect of post-curing on the thermal and mechanical properties of SLA-printed elastic photopolymer resin. Technologies, under review.

Publisher

Georgia Southern University

Language

eng

Version

1.0

Variables

DSC files (dsc/): Time, Temperature, Heat Flow (Normalized). Tensile testing files (tensile/): Reading Number, Load [lbF], Distance [in], Time [s]. Hardness testing file (hardness/): Post Cure Time (min), Sample-1, Sample-2, Sample-3, Sample-4, Sample-5.

File Size

301 KB

File Format

.csv

Viewing Instructions

Files are plain CSV and can be opened with Microsoft Excel or any spreadsheet or text-editing software.

Data Processing

DSC measures heat flow as a function of temperature. Tensile tests were conducted at room temperature with a constant crosshead speed (1 in./min); load and displacement were recorded. Thin specimens (3 mm thickness) were used for surface hardness measurement.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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