The production of tough, electrically conductive carbon fiber composite laminates for use in airframes

Guo, Miaocai; Yi, Xiaosu

doi:10.1016/j.carbon.2013.02.052

Cited by 40 publications

(20 citation statements)

References 6 publications

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“…metal, ceramic, polymer, carbonbased etc.) because of its light weight, relative flexibility and excellent mechanical properties (Ruland, 1990;Dresselhaus et al, 1988;Shioya et al, 2013;Guo & Yi, 2013;Roy et al, 2012;Wang et al, 2013). Polyacrylonitrile (PAN)-based carbon fiber is produced by the oxidative stabilization of PAN precursor fiber, normally followed by a two-stage carbonization process, with an added graphitization stage to manufacture high modulus (HM) fiber (Donnet & Bansal, 1984;Li et al, 2012;Mittal et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Structural evolution during the graphitization of polyacrylonitrile-based carbon fiber as revealed by small-angle X-ray scattering

Lü

et al. 2014

J Appl Cryst

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On the basis of a Debye–Bueche correlation length analysis, the small‐angle X‐ray scattering (SAXS) intensity components due to different scatterers within polyacrylonitrile‐based carbon fiber were determined and analyzed separately. According to Guinier's law and other related methods, an intensity component indicating a relatively large scatterer was ascribed to the amorphous structure within the boundaries of fibrils. Results indicated that the amorphous regions decreased in dimension and finally transformed completely into voids as the heat treatment temperature rose to 2773 K. The general trend for microvoids was a systematic change from many small voids to a few large voids, while the local density fluctuation within the samples weakened and finally faded away. In conclusion, the graphitization process of carbon fibers as revealed by SAXS is a systematic evolution from a quasi‐two‐phase system (fibril, amorphous region and microvoid within the fibril) of high‐strength carbon fiber to the true two‐phase structure (crystallite and microvoid) of high‐modulus graphite fiber.

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Section: Introductionmentioning

confidence: 99%

Structural evolution during the graphitization of polyacrylonitrile-based carbon fiber as revealed by small-angle X-ray scattering

Lü

et al. 2014

J Appl Cryst

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“…In recent years, there has been an increasing interest in developing conductive composites via the addition of carbon or metal nanoller to form threedimensional conductive network structures with particles such as carbon nanotubes (CNTs), [7][8][9][10] graphene nanoplatelets, 11 carbon black, 5 or silver nanowires. 12 In particular, CNTs exhibit extraordinary electrical conductivity and have mechanical properties that make them one of the most suitable conductive llers for preparing conductive polymer composites.…”

Section: -4mentioning

confidence: 99%

Simultaneous enhancement of electrical conductivity and interlaminar fracture toughness of carbon fiber/epoxy composites using plasma-treated conductive thermoplastic film interleaves

Xiang

Wang

et al. 2018

RSC Adv.

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Multiwalled carbon nanotube (MWCNT)-doped polyamide 12 (PA12) films with various nanofiller loadings were prepared via a solution casting method to simultaneously improve the electrical conductivity and fracture toughness of carbon fiber/epoxy (CF/EP) composites. The films were interleaved between CF/EP prepreg layers and melted to bond with the matrix during the curing process. To improve the interfacial compatibility and adhesion between the conductive thermoplastic films (CTFs) and the epoxy matrix, the CTFs were perforated and then subjected to a low temperature oxygen plasma treatment before interleaving. Fourier transform infrared (FTIR) spectra results confirm that oxygen-containing functional groups were introduced on the surface of the CTFs, and experimental results demonstrate that the electrical conductivity of the laminates was significantly improved. There was a 2-fold increase in the transverse direction electrical conductivity of the laminate with 0.7 wt% MWCNT loading and a 21-fold increase in the through-thickness direction. Double cantilever beam (DCB) tests demonstrated that the Mode-I fracture toughness (G IC ) and resistance (G IR ) of the same laminates significantly increased by 59% and 113%, respectively. Enhancements of both interlaminar fracture toughness and electrical conductivity are mainly attributed to the strong interfacial adhesion achieved after plasma treatment and to the bridging effect of the carbon nanotubes.

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“…The conductive paper was obtained by surface-loading AgNWs on the paper using an immersion method which is widely used to prepare functional thin sheets or porous materials such as conductive films, non-woven fabrics, and foams etc. [24,32,33]. Generally, the thin sheet was dipped into the slurry of nanomaterials to absorb a certain amount of dispersive liquid.…”

Section: Characterization Of Morphologymentioning

confidence: 99%

“…The stacking sequence of all the samples was [0] 24 . The final thickness was controlled to 4.0 mm by steel spacers.…”

Section: Electrical Conductivity Of the Laminatesmentioning

confidence: 99%

“…Combined with the interleaving technology, a functionalized interlayer technology was developed in our previous researches which can simultaneously and effectively improve the interlaminar fracture toughness and the electrical conductivity of composites [23,24]. The principle was constructing an electrical conducting-toughening double functions network in the interlays of composites by interleaving thin sheet formed of micron-sized nylon network and nano-sized silver nanowires network.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Paper or Silver Nanowires-Loaded Paper Interleaves on the Electrical Conductivity and Interlaminar Fracture Toughness of Composites

Guo¹,

2018

Aerospace

Self Cite

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Abstract:The effect of plant-fiber paper or silver nanowires-loaded paper interleaves on the electrical conductivity and interlaminar fracture toughness of composites was studied. Highly conductive paper was prepared by surface-loaded silver nanowires. The percolation threshold appeared at about 0.4 g/m 2 . The surface resistivity reached 2.3 Ω/sq when the areal density of silver nanowires was 0.95 g/m 2 . After interleaving the conductive papers in the composite interlayers, in-plane electrical conductivity perpendicular to the fiber direction was increased by 171 times and conductivity through thickness direction was increased by 2.81 times. However, Mode I and Mode II interlaminar fracture toughness decreased by 67.3% and 66.9%, respectively. Microscopic analysis showed that the improvement of conductivity was attributable to the formation of an electrical conducting network of silver nanowires which played a role in electrical connection of carbon fiber plies and the interleaving layers. However, the density of the highly packed flat plant fibers impeded the infiltration of resin. The parallel distribution of flat fibers to the carbon plies, and poor resin-fiber interface made the interlaminar fracture occur mainly at the interface of plant fibers and resin inside the interleaves, resulting in a decline of the interlaminar fracture toughness. The surface-loading of silver nanowires further impeded the infiltration of resin in the densely packed plant fibers, resulting in further decline of the fracture toughness.

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The production of tough, electrically conductive carbon fiber composite laminates for use in airframes

Cited by 40 publications

References 6 publications

Structural evolution during the graphitization of polyacrylonitrile-based carbon fiber as revealed by small-angle X-ray scattering

Structural evolution during the graphitization of polyacrylonitrile-based carbon fiber as revealed by small-angle X-ray scattering

Simultaneous enhancement of electrical conductivity and interlaminar fracture toughness of carbon fiber/epoxy composites using plasma-treated conductive thermoplastic film interleaves

Effect of Paper or Silver Nanowires-Loaded Paper Interleaves on the Electrical Conductivity and Interlaminar Fracture Toughness of Composites

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