3D打印丙烯腈-丁二烯-苯乙烯TiO和ATO纳米复合材料的力学性能

Mechanical Properties of 3D-Printed Acrylonitrile-Butadiene-Styrene TiO and ATO Nanocomposites.

作者信息

Vidakis Nectarios, Petousis Markos, Maniadi Athena, Koudoumas Emmanuel, Liebscher Marco, Tzounis Lazaros

机构信息

Mechanical Engineering Department, Hellenic Mediterranean University, Estavromenos, 71004 Heraklion, Crete, Greece.

Department of Materials Science and Technology, University of Crete, Vassilika, Voutes, 70013 Heraklion, Crete, Greece.

出版信息

Polymers (Basel). 2020 Jul 17;12(7):1589. doi: 10.3390/polym12071589.

In order to enhance the mechanical performance of three-dimensional (3D) printed structures fabricated via commercially available fused filament fabrication (FFF) 3D printers, novel nanocomposite filaments were produced herein following a melt mixing process, and further 3D printed and characterized. Titanium Dioxide (TiO) and Antimony (Sb) doped Tin Oxide (SnO) nanoparticles (NPs), hereafter denoted as ATO, were selected as fillers for a polymeric acrylonitrile butadiene styrene (ABS) thermoplastic matrix at various weight % (wt%) concentrations. Tensile and flexural test specimens were 3D printed, according to international standards. It was proven that TiO filler enhanced the overall tensile strength by 7%, the flexure strength by 12%, and the micro-hardness by 6%, while for the ATO filler, the corresponding values were 9%, 13%, and 6% respectively, compared to unfilled ABS. Atomic force microscopy (AFM) revealed the size of TiO (40 ± 10 nm) and ATO (52 ± 11 nm) NPs. Raman spectroscopy was performed for the TiO and ATO NPs as well as for the 3D printed nanocomposites to verify the polymer structure and the incorporated TiO and ATO nanocrystallites in the polymer matrix. The scope of this work was to fabricate novel nanocomposite filaments using commercially available materials with enhanced overall mechanical properties that industry can benefit from.

为了提高通过商用熔融长丝制造（FFF）3D打印机制造的三维（3D）打印结构的机械性能，本文通过熔融混合工艺制备了新型纳米复合长丝，并进一步进行了3D打印和表征。选择二氧化钛（TiO）和锑（Sb）掺杂的氧化锡（SnO）纳米颗粒（NPs），以下简称ATO，作为不同重量百分比（wt%）浓度的聚丙烯腈丁二烯苯乙烯（ABS）热塑性聚合物基体的填料。根据国际标准3D打印拉伸和弯曲测试样品。结果表明，与未填充的ABS相比，TiO填料使整体拉伸强度提高了7%，弯曲强度提高了12%，显微硬度提高了6%，而ATO填料的相应值分别为9%、13%和6%。原子力显微镜（AFM）揭示了TiO（40±10 nm）和ATO（52±11 nm）纳米颗粒的尺寸。对TiO和ATO纳米颗粒以及3D打印的纳米复合材料进行了拉曼光谱分析，以验证聚合物结构以及聚合物基体中掺入的TiO和ATO纳米微晶。这项工作的目的是使用具有增强整体机械性能的商用材料制造新型纳米复合长丝，使工业能够从中受益。