Multi jet fusion printing of polyamide 12 composites reinforced by ferroferic oxide-modified aramid fibers

• Main Author: Muhammad Danish Bin Ahmad Basharahil
• Other Authors: Zhou Kun
• Format: Final Year Project
• Language: English
• Published: Nanyang Technological University 2023
• Subjects: Engineering::Materials::Composite materials
• Online Access: https://hdl.handle.net/10356/168087
• Institution: Nanyang Technological University

Over the past few years, research into and application of additive manufacturing (AM), commonly known as three-dimensional (3D) printing, have both increased. The 3D printing process begins with a 3D design created with computer-aided design (CAD) software, and parts are typically constructed layer by layer. Powder bed fusion (PBF) 3D printing utilizes a source of energy to selectively consolidate powder materials into 3D structures layer by layer. The multi jet fusion (MJF) technique recently developed by the Hewlett-Packard (HP) Company has the ability to produce high-quality, functional parts while increasing productivity. Fiber-reinforced polymer composites can be created using MJF, which is a powder-based additive manufacturing technique. However, the types of reinforcement fibers that can be used in MJF are restricted by the compatibility between the fibers and the polymer matrix. In this article, a quick and affordable approach for modifying the surface of aramid fibers by ferroferric oxide (Fe3O4@AF hybrids) is suggested to create PA12 composites using MJF. The Young's modulus and ultimate tensile strength of Fe3O4@AF/PA12 composites were 16.05% and 10.83% higher at 6 wt% of fiber content than those of AF/PA12, respectively. This useful technique for surface modification may be used with various reinforcement fibers to create functional polymer composites using other powder-based production techniques.