Evaluation of the Effect of Mineral Oil Exposure on Changes in the Structure and Mechanical Properties of Polymer Parts Produced by Additive Manufacturing Techniques

Materials Pub Date : 2024-07-25 DOI:10.3390/ma17153680

Marcin Głowacki, K. Skórczewska, K. Lewandowski, Adam Mazurkiewicz, Piotr Szewczykowski

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Abstract

The paper describes the type of changes in the structure and mechanical properties of 3D printed shapes under the influence of mineral oil. The effects of a room (23 °C) and elevated temperature (70 °C) on 3D prints manufactured by the FDM method and stored in oil for 15, 30, and 60 days on the change of properties and structure were investigated. The samples were produced from ABS (poly(acrylonitrile-co-butadiene-co-styrene)), ASA (poly(acrylonitrile-co-styrene-co-acrylate), PLA (poly(lactic acid)), and HIPS (high-impact polystyrene). Tests related to the strength of the materials, such as the static tensile test and Charpy impact test, were carried out. The structure was evaluated using a scanning electron microscope, and changes in chemical structure were determined by conducting FTIR (Fourier transform infrared spectroscopy) and TGA (thermogravimetric analysis) tests. The analysis of the results provided important information about the impact of mineral oil on specific materials. This is critical for designing and manufacturing components that can withstand mineral oil exposure in real-world environments. The materials underwent varying changes. Strength increased for PLA by about 28%, remained unchanged for ABS and HIPS during exposure for 30 days, and decreased for ASA with extended exposure up to 14%.

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评估矿物油暴露对增材制造技术生产的聚合物部件的结构和机械性能变化的影响

本文介绍了三维打印形状在矿物油影响下的结构和机械性能变化类型。研究了室温（23 °C）和高温（70 °C）对通过 FDM 方法制造并在油中保存 15、30 和 60 天的三维打印件的性能和结构变化的影响。样品由 ABS（聚丙烯腈-丁二烯-苯乙烯）、ASA（聚丙烯腈-苯乙烯-丙烯酸酯）、PLA（聚乳酸）和 HIPS（高抗冲聚苯乙烯）制成。进行了与材料强度有关的测试，如静态拉伸测试和夏比冲击测试。使用扫描电子显微镜对结构进行了评估，并通过傅立叶变换红外光谱和热重分析测试确定了化学结构的变化。分析结果提供了有关矿物油对特定材料影响的重要信息。这对于设计和制造能够在实际环境中承受矿物油暴露的部件至关重要。材料发生了不同的变化。聚乳酸的强度提高了约 28%，ABS 和 HIPS 在暴露 30 天后强度保持不变，而 ASA 在暴露时间延长后强度降低了 14%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Materials

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