Effect of solution blown nanofibers on Mode‐I fracture toughness and dynamic mechanical properties of carbon fiber‐reinforced composites

Abstract

In this study, solution-blown nanofibers were coated on carbon fiber (CF) fabrics to improve Mode-I fracture toughness and dynamic mechanical properties of the composite laminates. Nanofiber coatings of various basis weights were directly spun over CF fabrics, which were then formed into composite laminates via vacuum-assisted resin transfer molding. A double cantilever beam test was conducted to analyze the Mode-I fracture toughness of CF-reinforced epoxy composites. The results showed that solution-blown nanofiber coatings stabilized the crack propagation and increased the delamination strength hence increased the Mode-I fracture toughness by nearly 48% for the addition of 1 g/m 2 nanofibrous web. Dynamic mechanical analysis was performed to investigate the effect of nanofibers on the stiffness of materials and the homogeneity of samples. Storage modulus, loss modulus, and damping factor were calculated, and corresponding Cole-Cole plots were drawn. DMA results showed that the stiffness of the composite sample increased up to 17% even after a minor amount (1 g/m 2 ) of nanofiber coating.

Sustainable Nano‐Nonwoven Fabric Production from Recycled Polyamide 6 Waste via Electrospinning: Controlling Characteristics and Comprehensive Analytical Study

“…Additionally, the damping modulus values reveal the viscous properties of the samples. [ 143 ] The variations in E ′ and tan δ values as a function of temperature in the range from 25 to 150 °C for all addressed samples are depicted in Figure a,b. With regards to E ′, the curves displayed three segments.…”

Effect of solution-blown nanofibrous web on quasi-static punch shear test results and quasi-static indentation behavior of carbon fiber-reinforced epoxy matrix composites

“…8 To date, an immense number of studies have surveyed the impact of electrospun nanofibrous interlayers related to mode I, mode II, and mixed-mode delamination. 5,[9][10][11][12][13][14] Fracture toughness was improved at a changing rate from 25% to 109% depending on the used interlayer materials. Moreover, numerous studies have been conducted to investigate diverse mechanical properties of nanofiber interlayered composite materials, as well as their response to mechanical loading events such as low-velocity impact loading, [15][16][17] tension, 14,[18][19][20] in-plane compression, 20 tension-tension fatigue, 18 and high strain rate loading.…”

Effects of incorporating ZnO nanowires on the moisture absorption and mechanical properties of composites

“…The fracture tests of composites revealed 48% increase in the fracture toughness because of the toughening provided by the nanofibrous web. [ 25 ] ZnO nanowires (ZnO NW) have also been used for improving the fiber/matrix interface bonding in the composites. Lin et al first used ZnO NW and measured about 113% increment in the fiber/matrix interface shear strength of the carbon/epoxy composite.…”

“…To be effective, these materials were usually deposited onto the fabrics through techniques like electrophoretic deposition, spray coating, chemical vapor deposition (CVD). [23][24][25][26][27] For example, hybrid fabric composites with CNTs deposited through CVD process showed 69% improvement in interlaminar shear strength (ILSS). [23] Godara et al used CNT/sizing together to improve the ILSS by 90% in glass/epoxy composites.…”