Tychanicz-Kwiecień Maria, Grosicki Sebastian, Markowicz Marek
Faculty of Mechanical Engineering and Aeronautics, Rzeszów University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland.
Doctoral School of the Rzeszów University of Technology, Rzeszów University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland.
Materials (Basel). 2025 Aug 22;18(17):3950. doi: 10.3390/ma18173950.
This study presents the results of experimental studies on the thermal conductivity of specimens made from selected pure polymer filaments manufactured with the use of FFF 3D-printing technology. The tested samples were made of polylactic acid (PLA), polyethylene terephthalate glycol (PET-G), and acrylonitrile butadiene styrene (ABS). In particular, the effects of the infill patterns and infill density on the tested samples were examined in order to characterize the influence of these parameters on the materials' effective thermal conductivity. Honeycomb and grid infill patterns of the tested samples with infill densities of 40%, 60%, 80%, and 100% were examined. The influence of temperature on thermal conductivity was studied as well. Thermal conductivity was measured using the guarded heat flow method, according to the ASTM E1530 standard within the defined temperature ranges of 20-60 °C for ABS and PET-G and 20-50 °C for PLA material. Samples of the tested materials were manufactured with the use of the Fused Filament Fabrication method (FFF), and filaments with a uniform black color were used. The obtained results were analyzed in terms of thermal conductivity variation after samples' infill pattern and infill density modifications, which provides extended thermal property characterization of the polymeric filaments adopted for 3D printing.
本研究展示了对采用熔融沉积成型（FFF）3D打印技术制造的选定纯聚合物长丝制成的试样的热导率进行实验研究的结果。测试样品由聚乳酸（PLA）、聚对苯二甲酸乙二醇酯二醇（PET-G）和丙烯腈-丁二烯-苯乙烯（ABS）制成。特别地，研究了填充图案和填充密度对测试样品的影响，以表征这些参数对材料有效热导率的影响。对填充密度为40%、60%、80%和100%的测试样品的蜂窝状和网格状填充图案进行了研究。还研究了温度对热导率的影响。根据ASTM E1530标准，在20 - 60°C（ABS和PET-G）以及20 - 50°C（PLA材料）的规定温度范围内，使用防护热流法测量热导率。测试材料的样品采用熔融长丝制造法（FFF）制造，并使用颜色均匀的黑色长丝。根据样品填充图案和填充密度改变后的热导率变化对所得结果进行了分析，这提供了用于3D打印的聚合物长丝的扩展热性能表征。
