3D printing and additive manufacturing. 2024 Jun 18;11(3):e1151-e1161. doi: 10.1089/3dp.2022.0222 Q32.12025
Characterizing the Effect of Filament Moisture on Tensile Properties and Morphology of Fused Deposition Modeled Polylactic Acid/Polybutylene Succinate Parts
纤维湿度对熔融沉积成型聚乳酸/聚丁二酸丁二醇酯制品拉伸性能及形貌的影响研究 翻译改进
Raihan Quader 1, Evan Dramko 2, David Grewell 1, Jed Randall 3, Lokesh Karthik Narayanan 1
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DOI: 10.1089/3dp.2022.0222 PMID: 39359595
摘要 中英对照阅读
用于熔融沉积建模（FDM）的吸湿性/亲水性材料吸收水分会降低所需的机械性能。对湿度敏感的程度取决于材料特性及环境因素，需要进行表征。本文通过将四种不同级别的聚乳酸（PLA）丝材和四种不同比例的PLA/聚丁二酸丁二醇酯（PBS）混合丝材在不同的相对湿度条件下处理后，利用FDM打印出美国材料与试验协会（ASTM-D638）测试样品来表征其水分敏感性。拉伸测试和扫描电子显微镜（SEM）对样品断裂面的分析显示，在所选级别的PLA丝材中，PLA 4043D是最易受湿度影响的一种。通过线材张力测试和熔体流动指数（MFI）测试观察到水分对PLA 4043D丝材产生了显著的不利影响（拉伸强度降低20%，MFI增加50%）。来自经过湿度处理的PLA/PBS 75/25混合线材样品显示，其拉伸强度显著下降了10%。此外，75/25线材的MFI随着水分含量的增加而上升。对四种不同级别的PLA丝材在室温和湿度条件下暴露3个月后制成的ASTM测试样品进行拉伸性能研究发现，强度进一步显著降低（降幅为24%到36%）。
关键词：FDM；PBS；PLA；线材；水分敏感性。
版权所有 © 2023 Mary Ann Liebert, Inc., publishers.
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期刊名：3d printing and additive manufacturing
缩写：3D PRINT ADDIT MANUF
ISSN：2329-7662
e-ISSN：2329-7670
IF/分区：2.1/Q3
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Characterizing the Effect of Filament Moisture on Tensile Properties and Morphology of Fused Deposition Modeled Polylactic Acid/Polybutylene Succinate Parts