Moreno-Sanchez Daniel, Sanz de León Alberto, Moreno Nieto Daniel, Delgado Francisco J, Molina Sergio I
Departamento de Ingeniería Mecánica y Diseño Industrial, Escuela Superior de Ingeniería, IMEYMAT, Universidad de Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real, Spain.
Departamento de Ciencia de los Materiales e I. M. y Q. I., Facultad de Ciencias, IMEYMAT, Universidad de Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real, Spain.
Polymers (Basel). 2022 Aug 8;14(15):3216. doi: 10.3390/polym14153216.
Fused filament fabrication (FFF) is gaining attention as an efficient way to create parts and replacements on demand using thermoplastics. This technology requires the development of new materials with a reliable printability that satisfies the requirement of final parts. In this context, a series of composites based on acrylonitrile styrene acrylate (ASA) reinforced with basalt fiber (BF) are reported in this work. First, several surface modification treatments are applied onto the BF to increase their compatibility with the ASA matrix. Then, once the best treatment is identified, the mechanical properties, coefficient of thermal expansion (CTE) and warping distortion of the different specimens designed and prepared by FFF are studied. It was found that the silanized BF is appropriate for an adequate printing, obtaining composites with higher stiffness, tensile strength, low CTE and a significant reduction in part distortion. These composites are of potential interest in the design and manufacturing of final products by FFF, as they show much lower CTE values than pure ASA, which is essential to successfully fabricate large objects using this technique.
熔融长丝制造（FFF）作为一种使用热塑性塑料按需制造零件和替代品的有效方法正受到关注。这项技术需要开发具有可靠可印刷性的新材料，以满足最终零件的要求。在此背景下，本文报道了一系列基于玄武岩纤维（BF）增强的丙烯腈-苯乙烯-丙烯酸酯（ASA）复合材料。首先，对玄武岩纤维进行了几种表面改性处理，以提高它们与ASA基体的相容性。然后，一旦确定了最佳处理方法，就对通过FFF设计和制备的不同试样的力学性能、热膨胀系数（CTE）和翘曲变形进行了研究。结果发现，硅烷化的玄武岩纤维适合进行适当的打印，从而获得具有更高刚度、拉伸强度、低CTE且零件变形显著降低的复合材料。这些复合材料在通过FFF设计和制造最终产品方面具有潜在的应用价值，因为它们的CTE值比纯ASA低得多，这对于使用该技术成功制造大型物体至关重要。
