Mechanical, fracture toughness, and fatigue behavior of spinifex littoreus fiber on echinoidea‐spike toughened epoxy composite

Abstract

Novel spinifex littores fiber‐reinforced echinoidea spike particle dispersed epoxy resin hybrid composite has been prepared and characterized. The main objective of this research work was to prepare a new system of epoxy hybrid composite comprises of surface‐treated novel spinifex littores fiber (SLF) and echinoidea spike powder (ESP) for sustainable material development. The fiber was treated with alkali and silane for effective adhesion with matrix. The composites were prepared using hand layup method and post cured at 120°C. The mechanical properties were improved with increasing particle content. The wear result shows a lowest coefficient of friction and sp. wear rate of 0.43 and 0.004 mm3/Nm for SP5 composite designation. Fracture toughness of 32.1 ± 0.69 MPa √m and energy release rate of 1.257 ± 0.071 mJ/m2 was observed for composite designation SP4. A highest fatigue life count of 26,832 was observed for composite contains 1 vol% of silane‐treated ESP and 8 h alkali cum silane‐treated SPF. The fractographs reveals toughness improved matrix phase via shear cup formation. These marine based eco‐friendly reinforcement based epoxy composites could be used in various applications in the cadre of automobile, mini‐aircrafts, structural, sports, and domestic.

Characterization of prickly pear short fiber and red onion peel biocarbon nanosheets toughened epoxy composites

“…The smoother broken surface shown in Figure 10B is owing to the enhanced bonding mechanism created by the introduction of 1% biocarbon nanosheets. This is due to the even dispersion of biocarbon 30,31 . As the proportion of biocarbon nanosheets in the composite is raised, improvements in mechanical properties such as Izod impact toughness and hardness are seen.…”

“…This is due to the even dispersion of biocarbon. 30,31 As the proportion of biocarbon nanosheets in the composite is raised, improvements in mechanical properties such as Izod impact toughness and hardness are seen. The introduction of biocarbon particles improves the characteristics and increases load shearing ability due to its pores structure, as illustrated in Figure 10C.…”

Synthesis of microcrystalline cellulose from abaca nonfluorescent flower pistil and its twill weaved fiber‐polyester composites: Viscoelastic, fatigue, and mechanical properties

“…The development of microcracks and subsequent decrease in life count occurs as a result of a large volume of cellulose particles making the high dense clusters and highly cross linked polymer structures in the fiber-matrix interface. [39] It has been observed that the composites life significantly reduced as the ultimate load percentage continued to increase. This is due to the degree of microcrack creation and propagation is greater under higher applied stress, which causes the composite to deform plastically or increased ductility.…”

Evaluation of Mechanical Behaviour of Multiwalled Nanotubes Reinforcement Particles in Jute-Glass Fibres Hybrid Composites

“…Tis is owing to the high concentration of OH groups on glass fbre Te number of hydroxyl clusters and microvoids in glass/epoxy composites increased, which resulted in a signifcant increase in moisture fascination. Te hybrid wood-glass combination absorbed the least water quantity [25][26][27]. On the other hand, the hydrophilic multiwalled nanotubes in the hybrid nanocomposite absorbed more moisture than the hybrid composite.…”