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Carbon Fiber Epoxy - Springer Nature

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Last Updated: 25 November 2022

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Shock wave response of porous carbon fiber–epoxy composite

The shock wave compressibility of the porous composite did not depend on the fabric orientation relative to shock wave propagation's direction. The porous composite's results were compared to those for a non-porous carbon composite and epoxy resin used as a matrix in the composites, according to the composites' results. When analyzing dynamic fracture of the porous composite under shock compression, it was discovered that the spall strength of the material was considerably lower than that of epoxy resin.

Source link: https://doi.org/10.1007/s00193-022-01104-3


Investigation on forward and backward transfer process during carbon fiber/epoxy composites dry-sliding against iron alloy

Carbon fiber reinforced polymer composites with high load-bearing capability are now the most popular components in tribological load systems. The in-situ production of ultrathin and uniform transfer film on the metal surface of CFRP/metal is one of the key factors during the friction process of CFRP/metal, and the related initial/transfer mechanism is also significant but not clear. The one-way transfer process of CFRP to the metal surface, that is, forward transfer, is largely ignored; another easily ignored topic is that the metal material also migrates backward to the CFRP surface, which leads to the CFRP surface, which is another easily ignored topic. Herein, we firstly produced carbon fiber/epoxy resin composites by the hot-pressing process and then carried out friction tests with iron alloy as the control material. The interfacial friction is divided into three key stages by time, according to the variation code of friction coefficient, u201d and u201cepoxy exfoliationu201d occur throughout the whole process.

Source link: https://doi.org/10.1007/s11431-022-2137-8


Role of Silicon Carbide Nanoparticle on Electromagnetic Interference Shielding Behavior of Carbon Fibre Epoxy Nanocomposites in 3-18GHz Frequency Bands

In this research, the effect of adding high-content SiC nanoparticles to a carbon fibre reinforced epoxy resin composite on electromagnetic interference shielding behavior is discussed. This research was designed to investigate SiC particle addition in carbon epoxy composites at high frequencies up to 18GHz, which was the primary aim of this research. As the number of SiC particles increased, it was also found that the shielding effect increased. These upgraded SiC-epoxy composites with improved EMI shielding capabilities may be used in radar, tele-communication, military, and signal processing applications where interference is a challenge.

Source link: https://doi.org/10.1007/s12633-022-01825-1


Thermal analysis of epoxy resin matrix and carbon fiber epoxy laminate cured by imidazole

Improved heat resistance is present in the epoxy composite treated by imidazole. The pyrolysis reactions of epoxy resin cured with imidazole and its carbon fiber epoxy laminate in the nitrogen atmosphere were limited to one step, but in the air atmosphere, their pyrolysis reactions were divided into three and four steps, respectively. Around 143 -u201350 b0C, u00b0C, and the change of specific heat capacity with temperature was found between 20 and 230 °u00b0C. To a considerable extent, the thermal properties of the carbon fiber laminate was determined by the thermal characteristics of the carbon fiber laminate. It was shown that the thermal performance of the 2E4MI cured epoxy resin determined the thermal performance of the carbon fiber laminate. So, the use of a curing agent in epoxy resin indirectly determines composites' thermal characteristics.

Source link: https://doi.org/10.1007/s10973-022-11584-1


Synergetic Improvement of Interlaminar Fracture Toughness in Carbon Fiber/Epoxy Composites Interleaved with PES/PEK-C Hybrid Nanofiber Veils

In this research, two types of soluble thermoplastic resins were introduced to epoxy resin at a set weight ratio in order to build a three-phase cast body. When the hybrid components reached 15 wt%, Polyethersulfone and polyaryletherketone cardo showed the most synergistic toughening effect, the fracture toughness increased by 99. 8% and 39. 8%, respectively, compared to the reference or the same sample of the single PES toughened sample. The interlaminar fracture toughness of mode I and mode II layers increased by 81. 3 percent and 46. 9%, respectively, relative to the reference sample, owing to a lack of significant influence of PES nanofibers on CF/EP composites.

Source link: https://doi.org/10.1007/s42765-022-00160-9


Effects of stitch yarns on interlaminar shear behavior of three-dimensional stitched carbon fiber epoxy composites at room temperature and high temperature

Effects of four different types of stitch yarns on interlaminar shear strength and failure characteristics of the three-dimensional stitched composites were investigated by a double-notch shear test at room temperature and 100 °u2103. The results showed that stitch yarns' mechanical properties played a significant role in determining composites' ILSS at RT, and PBO stitch yarn stitched with PBO stitch yarn show the highest ILSS at RT, which can reach 82. 6 MPa. The stitch yarn/resin interface results at 100. u2103, stitched with CF stitch yarn, provide the most ILSS of composites, 3DSCs stitched with CF stitch yarn, yielding the highest interlaminar shear result, with a ILSS of 52. 4 MPa. At room temperature and 100 u2103. The effects of four types of stitch yarns on interlaminar shear damage law and the 3DSC's failure mechanism were illustrated.

Source link: https://doi.org/10.1007/s42114-022-00526-y

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions