Multifunctional nickel‐coated carbon fiber veil for improving both fracture toughness and electrical performance of carbon fiber/epoxy composite laminates

2021 ◽  
Author(s):  
Hui Liu ◽  
Yunli Guo ◽  
Yong Zhou ◽  
Guoshun Wan ◽  
Zhongli Chen ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Carbon Fiber ◽  
Composite Laminates ◽  
Epoxy Composite ◽  
Electrical Performance ◽  
Carbon Fiber Epoxy ◽  
Coated Carbon

scholarly journals Improving flexural and dielectric properties of carbon fiber epoxy composite laminates reinforced with carbon nanotubes interlayer using electrospray deposition

2020 ◽  
Vol 9 (1) ◽  
pp. 1170-1182
Author(s):  
Muhammad Razlan Zakaria ◽  
Hazizan Md Akil ◽  
Mohd Firdaus Omar ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Aslina Anjang Ab Rahman ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Properties ◽  
Carbon Fiber ◽  
Composite Laminates ◽  
Epoxy Composite ◽  
Flexural Modulus ◽  
X Ray Diffraction ◽  
Electrospray Deposition ◽  
Ft Ir ◽  
Carbon Fiber Epoxy

AbstractThe electrospray deposition method was used to deposit carbon nanotubes (CNT) onto the surfaces of woven carbon fiber (CF) to produce woven hybrid carbon fiber–carbon nanotubes (CF–CNT). Extreme high-resolution field emission scanning electron microscopy (XHR-FESEM), X-ray diffraction (XRD), Raman spectroscopy and Fourier transform infrared spectroscopy (FT-IR) were used to analyze the woven hybrid CF–CNT. The results demonstrated that CNT was successfully and homogenously distributed on the woven CF surface. Woven hybrid CF–CNT epoxy composite laminates were then prepared and compared with woven CF epoxy composite laminates in terms of their flexural and dielectric properties. The results indicated that the flexural strength, flexural modulus and dielectric constant of the woven hybrid CF–CNT epoxy composite laminates were improved up to 19, 27 and 25%, respectively, compared with the woven CF epoxy composite laminates.

Experimental and statistical analysis of carbon fiber/epoxy composites interleaved with nylon 6,6 nonwoven fabric interlayers

2020 ◽  
Vol 54 (27) ◽  
pp. 4173-4184
Author(s):  
Bertan Beylergil ◽  
Metin Tanoğlu ◽  
Engin Aktaş
Keyword(s):  
Fracture Toughness ◽  
Carbon Fiber ◽  
Composite Laminates ◽  
Nonwoven Fabric ◽  
Epoxy Composites ◽  
Nonwoven Fabrics ◽  
Mode I Fracture Toughness ◽  
Weight Density ◽  
Nylon 6,6 ◽  
Carbon Fiber Epoxy

Thermoplastic interleaving is a promising technique to improve delamination resistance of laminated composites. In this study, plain-weave carbon fiber/epoxy composites were interleaved with nylon 6,6 nonwoven fabrics with an areal weight density of 17 gsm. The carbon fiber/epoxy composite laminates with/without nylon 6,6 nonwoven fabric interlayers were manufactured by VARTM technique. Double cantilever beam fracture toughness tests were carried out on the prepared composite test specimens in accordance with ASTM 5528 standard. The experimental test data were statistically analyzed by two-parameter Weibull distribution. The results showed that the initiation and propagation fracture toughness Mode-I fracture toughness of carbon fiber/epoxy composites could be improved by about 34 and 156% (corresponding to a reliability level of 0.50) with the incorporation of nylon 6,6 interlayers in the interlaminar region, respectively. The results also revealed that the percent increase in the propagation fracture toughness value was 67 and 41% at reliability levels of 0.90 and 0.95, respectively.

The Interlaminar Toughening Effect of Hybrid PES/E51 Films on Carbon Fiber/ Epoxy Composite

2020 ◽  
Vol 984 ◽  
pp. 131-136
Author(s):  
Chao Cheng ◽  
Hui Zhang ◽  
Ze Yu Sun ◽  
Yong Liu ◽  
Mu Huo Yu
Keyword(s):  
Fracture Toughness ◽  
Composite Laminates ◽  
Phase Inversion ◽  
Hybrid Film ◽  
Epoxy Composite ◽  
Interlaminar Fracture Toughness ◽  
Resin Infusion ◽  
Mode I Fracture Toughness ◽  
Carbon Fiber Epoxy ◽  
Opposite Tendency

In this study, E51 was appended as an additive to the PES casting solution and hybrid PES/E51 films with different E51 content were produced by phase inversion approach, applied as interleaves to improve the interlaminar fracture toughness of CF/EP composite laminates prepared by vacuum assistant resin infusion process (VARI). The time that the hybrid film dissloved into the epoxy resin depended on the content of E51 in the film, moreover, it was observed that Mode I fracture toughness of the hybrid film modified composite reduced with the addition of E51 compared with the pure PES film interleaved composite, however, the tensile properties showed the opposite tendency. The reason was the reduction in the thickness of the interlayer resin illustrated by cross-section morphologies of all types of laminates.

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