Glass fiber/Carbon nanotube/Epoxy hybrid composites: Achieving superior mechanical properties

Dehrooyeh, Saman; Vaseghi, Majid; Sohrabian, Majid; Sameezadeh, Mahmood

doi:10.1016/j.mechmat.2021.104025

Cited by 51 publications

(34 citation statements)

References 28 publications

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“…Δ T is used to assess the superiority of CBH/EP composites in terms of the toughness. The Δ T values of various EP‐based composites strengthened by carbon‐based nanofillers reported in recent references are summarized and compared in Figure 10 15,40,52–61 . Compared with these reported counterparts, the CBH/EP composites in this study not only showed a good toughness enhancement effect, but also improved strength.…”

Section: Resultsmentioning

confidence: 64%

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The synergistic improvement in mechanical strength and toughness obtained in epoxy‐based composites incorporating with carbon nanotubes‐polymer hybrid construction

Ding

Yin

et al. 2023

J of Applied Polymer Sci

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In order to meet the ever‐increasing demands of complex engineering applications, it is necessary to design the polymer‐based composites with the synergistic improvements in strength and toughness. Herein, the novel carbon nanotubes (CNT)‐bismaleimide (BMI) hybrid construction (CBH) was prepared through mechanical blending and pulverizing. The as‐prepared CBH with a stable structure and well‐regulated morphological construction was employed as a special functional filler to endow the epoxy‐based composites with a significantly enhanced overall mechanical property. Due to CBH can provide a multiscaled interfacial interaction with matrix, the composite loaded with 1 wt% CBH exhibited the synchronously improved both tensile modulus (1.31 GPa) and toughness (1.89 MJ m−3), which are 27.18% and 209.83% higher than those of pure epoxy, respectively. Moreover, good interfacial compatibility between CBH and matrix allows the composite loaded with 1 wt% CBH to exhibit the thermal conductivity of 0.18 W m−1 K−1, which was 28.57% higher than pure epoxy (0.14 W m−1 K−1). Be different from many other CNTs‐loaded counterparts, the aligned‐CNTs loaded composite showed a well‐maintained insulating feature. The novel carbon nanotubes‐polymer hybrid construction expands the application range of epoxy‐based insulating composites by optimizing their mechanical and thermal properties.

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Section: Resultsmentioning

confidence: 64%

“…As shown in Figure 1, the as‐prepared CNT/BMI composites were freezing‐pulverized (1600 W, 3000 rpm, 2 min) in a liquid nitrogen environment maintained 39–41 . The whole low‐temperature pulverization process was repeated four times.…”

Section: Methodsmentioning

confidence: 99%

The synergistic improvement in mechanical strength and toughness obtained in epoxy‐based composites incorporating with carbon nanotubes‐polymer hybrid construction

Ding

Yin

et al. 2023

J of Applied Polymer Sci

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“…28 The void content of all the hybrid composites was lower than that of the composite specimen with no CNC particles sample which is attributed from cellulose nanofibers' superior surface wetting capacity, which results in improved contact and adhesive bonding in interface region. 29…”

Section: Density and Void Content Analysismentioning

confidence: 99%

Synthesis of crystalline nanocellulose and its effect on the mechanical properties of E-glass fiber/epoxy composite for prosthetic shank applications

Tesfaye

Wolla

Mulugeta

2023

Journal of Composite Materials

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Prosthetic shank is one of the prominent parts of prosthetic leg that transfers load from prosthetic socket to the foot section. Nowadays, it is common to use composite materials for prosthetics and orthotics applications. This research aims at synthesis and characterization of properties of crystalline nanocellulose (CNC) powder and investigating its effect on the mechanical and physical properties of E-glass fiber - epoxy composite for prosthetic shank applications. Different properties including tensile, impact, flexural, water absorption, thermographic, density and surface morphology of a hybrid composite are investigated. The research further targets to test the suitability of developed composite material for prosthetic shank applications. Extraction of CNC powder is performed using chemical extraction technique which involves alkali treatment, delignification, bleaching and acid hydrolysis. Crystallinity of CNC particles is determined at 2θ values of 19.89°, 44.04°, 64.34° and 77.51°. Crystallite size of these powders is found to be 13 nm from XRD analysis. Thermal properties of CNCs are examined using thermographic analysis and the result reveals a three-stage decomposition of CNC powders in temperature ranges. The results also reveal that addition of CNC powder enhances the overall performance of the composite, and composite specimen with 8wt% CNC powder shows superior mechanical and physical properties. Further, selected composite is modeled for the prosthetic shank application using commercial finite element software, ANSYS 2022, and maximum equivalent von Mise’s stress of 0.82598 MPa and deformation of 0.054065 mm are obtained Based on the overall findings and analysis, it is highly recommended to develop and use hybrid E-glass fiber – CNC - epoxy composite as a substitute material for prosthetic shank applications.

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“…The current study includes an evaluation of the rheological behavior of PLA, thermal analysis of the applied materials, morphological investigation of the output filament and mechanical evaluation of the 3D-printed parts. Generally, an optimal selection of material characteristics and processing parameters would dramatically improve the fabrication integrity and the mechanical properties of the fabricated parts (Dehrooyeh et al , 2021). Therefore, an investigation was performed to determine the nature and differences of common market filaments and to define the most appropriate values of processing parameters.…”

Section: Introductionmentioning

confidence: 99%

Influence of processing parameters tuning and rheological characterization on improvement of mechanical properties and fabrication accuracy of 3D printed models

Afsharkohan

Dehrooyeh

Sohrabian

et al. 2023

RPJ

Self Cite

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Purpose Fabrication settings such as printing speed and nozzle temperature in fused deposition modeling undeniably influence the quality and strength of fabricated parts. As available market filaments do not contain any exact information report for printing settings, manufacturers are incapable of achieving desirable predefined print accuracy and mechanical properties for the final parts. The purpose of this study is to determine the importance of selecting suitable print parameters by understanding the intrinsic behavior of the material to achieve high-performance parts. Design/methodology/approach Two common commercial polylactic acid filaments were selected as the investigated samples. To study the specimens’ printing quality, an appropriate scaffold geometry as a delicate printing sample was printed according to a variety of speeds and nozzle temperatures, selected in the filament manufacturer’s proposed temperature range. Dimensional accuracy and qualitative surface roughness of the specimens made by one of the filaments were evaluated and the best processing parameters were selected. The scaffolds were fabricated again by both filaments according to the selected proper processing parameters. Material characterization tests were accomplished to study the reason for different filament behaviors in the printing process. Moreover, the correlations between the polymer structure, thermo-rheological behavior and printing parameters were denoted. Findings Compression tests revealed that precise printing of the characterized filament results in more accurate structure and subsequent improvement of the final printed sample elastic modulus. Originality/value The importance of material characterization to achieve desired properties for any purpose was emphasized. Obtained results from the rheological characterizations would help other users to benefit from the highest performance of their specific filament.

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Glass fiber/Carbon nanotube/Epoxy hybrid composites: Achieving superior mechanical properties

Cited by 51 publications

References 28 publications

The synergistic improvement in mechanical strength and toughness obtained in epoxy‐based composites incorporating with carbon nanotubes‐polymer hybrid construction

The synergistic improvement in mechanical strength and toughness obtained in epoxy‐based composites incorporating with carbon nanotubes‐polymer hybrid construction

Synthesis of crystalline nanocellulose and its effect on the mechanical properties of E-glass fiber/epoxy composite for prosthetic shank applications

Influence of processing parameters tuning and rheological characterization on improvement of mechanical properties and fabrication accuracy of 3D printed models

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