This study presents an alternative to reducing solid waste, improving the concept of green composites. So, the use of fibers from pine cone as reinforcement in acrylonitrile butadiene styrene (ABS) composites filaments as a potential for 3D pen was evaluated. The effect of the treatment chemical (alkaline and bleaching) was studied. A thermokinetic mixer processed the ABS/pine cone fibers (2 and 5% wt.) composites. After, the filaments were prepared by mini extruder and printing 3D pen. Filaments were characterized by Scanning Electron Microscopy (SEM), Thermogravimetry (TGA), and Infrared Spectroscopy (FTIR). Filaments revealed homogeneous diameters. The addition of 2 and 5% wt. fiber not significantly influenced the filament’s diameter and density. On the other hand, thermal stability and morphological analysis influenced the type of fiber (raw, treated, and bleached). The addition of bleached fibers to ABS increased composites’ thermal stability compared to other fibers (treated and raw). Also, inserting bleached fibers was perceptible a uniformly distributed and embedded throughout the wire cross-section compared to treated and raw fiber added to ABS due to good interfacial bonding. Results indicated that fibers were hydrogen-bonded to ABS chains and increased the filament’s density. So, it is possible to affirm that the addition of fibers from pine cone to ABS thermally improved and can be a low-cost feedstock for printing 3D pen applications. Despite the low concentration of natural fiber on the composites investigated in this work, the successful obtainment of ABS reinforced with biodegradable natural fiber, compromising neither its thermal properties nor its processability and printability, opens the possibility for future work investigation into a composite with larger fiber content.

这项研究提出了一种减少固体废物，改善绿色复合材料概念的替代方法。因此，评估了使用松果纤维作为丙烯腈-丁二烯-苯乙烯（ABS）复合材料丝中的增强材料作为3D笔的潜力。研究了处理化学品（碱性和漂白）的效果。热动力学混合器加工ABS /松锥纤维（2和5重量％）复合材料。之后，通过微型挤出机并打印3D笔​​来制备长丝。细丝通过扫描电子显微镜（SEM），热重分析（TGA）和红外光谱（FTIR）进行表征。细丝显示出均匀的直径。2和5wt。％的添加。纤维不会显着影响细丝的直径和密度。另一方面，热稳定性和形态分析会影响纤维的类型（原始，处理和漂白）。与其他纤维（经处理和未加工）相比，向ABS中添加漂白纤维可提高复合材料的热稳定性。同样，与经过处理的原始纤维和添加到ABS中的原始纤维（由于其良好的界面粘合性）相比，插入的漂白纤维在整个金属丝横截面上均可以均匀分布和嵌入。结果表明，纤维通过氢键结合到ABS链上，从而增加了细丝的密度。因此，可以肯定的是，从松锥到ABS的纤维添加在热方面得到了改善，并且可以作为打印3D笔​​应用的低成本原料。尽管在这项工作中研究的复合材料中天然纤维的浓度较低，但是成功获得了可生物降解的天然纤维增强的ABS，