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Improved Sintering Quality and Mechanical Properties of Peanut Husk Powder/Polyether Sulfone Composite for Selective Laser Sintering
3D Printing and Additive Manufacturing ( IF 3.1 ) Pub Date : 2021-07-26 , DOI: 10.1089/3dp.2021.0036
Aboubaker I B Idriss 1, 2 , Jian Li 1 , Yanling Guo 1 , Yangwei Wang 1 , Elkhawad A Elfaki 3, 4 , Elhaj A I Ahmed 2
Affiliation  

Current wood-plastic materials available for selective laser sintering (SLS) are limited and often suffer from low-quality and mechanical strength. In this study, a new composite of peanut husk powder (PHP)/polyether sulfone (PES) was developed for SLS additive manufacturing (AM). To use the biomass waste materials in AM technology, such as furniture and wood flooring, this composite based on agricultural waste is environmentally friendly, energy efficient, and low in production cost. SLS parts made from PHPC had good mechanical strength and excellent dimensional precision (DP). The thermal decomposition temperature of composite powder components and the glass transition temperatures of PES and various PHPC were determined first to prevent the PHPC parts from warping during sintering. Furthermore, the formability of PHPC powders in various mixing ratios was examined through single-layer sintering; and the density, mechanical strength, surface roughness, and DP of the sintered parts were measured. Particle distribution and microstructure of the powders and the SLS parts (both before and after breakage in mechanical tests) were inspected using scanning electron microscopy. According to the combined results, a ratio of PHP/PES = 10/90 (w/w) resulted in the best forming quality and mechanical strength compared with other ratios and pure PES. The measured density, impact strength, tensile strength, and bending strength for this PHPC are 1.1825 g/cm3, 2.12 kJ/cm2, 6.076 MPa, and 14.1 MPa, respectively. After wax infiltration, these parameters were further improved to 2.0625 g/cm3, 2.96 kJ/cm2, 7.476 MPa, and 15.7 MPa, respectively.

中文翻译:

用于选择性激光烧结的花生壳粉/聚醚砜复合材料提高了烧结质量和机械性能

目前可用于选择性激光烧结 (SLS) 的木塑材料有限,而且通常质量和机械强度低。在这项研究中,开发了一种用于 SLS 增材制造 (AM) 的花生壳粉 (PHP)/聚醚砜 (PES) 的新型复合材料。在增材制造技术中使用生物质废料,如家具和木地板,这种基于农业废料的复合材料具有环保、节能、生产成本低的特点。由 PHPC 制成的 SLS 零件具有良好的机械强度和出色的尺寸精度 (DP)。首先确定了复合粉末组分的热分解温度和 PES 和各种 PHPC 的玻璃化转变温度,以防止 PHPC 部件在烧结过程中翘曲。此外,通过单层烧结考察了不同配比的PHPC粉体的成型性;并测量了烧结件的密度、机械强度、表面粗糙度和DP。使用扫描电子显微镜检查粉末和 SLS 部件的颗粒分布和微观结构(在机械测试中断裂前后)。根据综合结果,与其他比例和纯 PES 相比,PHP/PES = 10/90 (w/w) 的比例可获得最佳的成型质量和机械强度。此 PHPC 的实测密度、冲击强度、拉伸强度和弯曲强度为 1.1825 g/cm 使用扫描电子显微镜检查粉末和 SLS 部件的颗粒分布和微观结构(在机械测试中断裂前后)。根据综合结果,与其他比例和纯 PES 相比,PHP/PES = 10/90 (w/w) 的比例可获得最佳的成型质量和机械强度。此 PHPC 的实测密度、冲击强度、拉伸强度和弯曲强度为 1.1825 g/cm 使用扫描电子显微镜检查粉末和 SLS 部件的颗粒分布和微观结构(在机械测试中断裂前后)。根据综合结果,与其他比例和纯 PES 相比,PHP/PES = 10/90 (w/w) 的比例可获得最佳的成型质量和机械强度。此 PHPC 的实测密度、冲击强度、拉伸强度和弯曲强度为 1.1825 g/cm3、2.12 kJ/cm 2、6.076 MPa 和 14.1 MPa。蜡渗透后,这些参数分别进一步提高到 2.0625 g/cm 3、2.96 kJ/cm 2、7.476 MPa 和 15.7 MPa。
更新日期:2021-07-28
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