Experimental investigations on thermal, flame retardant, and impact properties of additively manufactured continuous FRPC

Abstract

As an additive manufacturing (AM) technology, fused deposition modeling (FDM) is widely used to fabricate highly complex components. Polymer components fabricated by FDM technique have weak mechanical properties. To enhance the mechanical properties, 3D printing of polymer composites is done by reinforcing particles, nanomaterials, short and continuous fibers into thermoplastic polymers. The thermal, flame retardant, and impact properties of a continuous kevlar fiber-reinforced onyx 3D-printed composite are investigated in this study. Additionally, the effect of fiber arrangement and orientation (0 , 90 , 0 /90 , and +45 /À45 ) on the impact strength of 3D-printed composites have been investigated. The impact strength of the 3D-printed composite specimens was determined using izod impact testing. It was found that specimens with fiber arrangement having fiber and matrix layer configuration as 21O| 20K|20O|20K|21O have a higher impact strength and specimens with fiber arrangement as 31O|40K|31O have lower impact strength. Furthermore, specimen 3D printed with a unidirectional 0 fiber angle had the highest impact strength, while specimen 3D printed with a unidirectional 90 fiber angle had the lowest impact strength. Furthermore, flammability tests and thermogravimetric analysis were performed to investigate the flame retardant and thermal properties of 3D-printed composites. Morphological study of onyx and kevlar fiber filament was also done using scanning electron microscope (SEM).

Thermal and mechanical characteristic investigation of the hybridization of basalt fiber with aramid fiber and carbon fiber

“…[ 56 ] In another study with aramid fiber, it was found that the first deterioration started in 321, while the secondary weight loss was around 349–585°C. [ 57 ] It is also seen in previous studies that the amount of decomposition of carbon fabrics up to 600°C was very low. [ 58 ]…”

“…[55] In the thermal analysis of aramid fabrics in another research, it was observed that the material was pyrolysis between 600 and 800 C, where the F I G U R E 3 TGA graphs of (A) fabrics (B) homogeneous composites (C) hybrid composites. TGA, thermogravimetric analysis deterioration started at 300 C and the maximum weight loss was shown at 550-600 C. [56] In another study with aramid fiber, it was found that the first deterioration started in 321, while the secondary weight loss was around 349-585 C. [57] It is also seen in previous studies that the amount of decomposition of carbon fabrics up to 600 C was very low. [58] Weight changes and initial temperatures of B, A, C, B/A, B/C, and A/C composite specimens were indicated in Table 5.…”

Finite element theoretical and experimental study on the dynamic characteristics of material extrusion thin plates

“…At present, a large number of scholars have studied the mechanical properties of ME products, such as tensile strength, [6][7][8][9] fracture toughness, [10][11][12] impact strength, [13][14][15][16] and fatigue property. [17][18][19] Many studies have shown that processing parameters have a significant effect on the performance of ME products.…”

Evaluation of thermal and mechanical properties of continuous fiberglass reinforced thermoplastic composite fabricated by fused deposition modeling

“…As a cutting-edge technology, additive manufacturing (AM) fabricates the components from digital computer data to high-performance functional parts with complex geometries. [1][2][3][4] AM technology may speed up the design and manufacturing process, lower production costs, and boost competitiveness compared to traditional techniques. The benefits of AM include quick manufacture of complicated components, cheap cost, environmental friendliness, and minimal material waste.…”