A cast-in-place fabrication of high performance epoxy composites cured in an in-situ synthesized 3D foam of nanofibers

Kadhim, Nabil; Zaman, Ahsan; Jiang, Man; Li, Ying; Qiu, Jianhui

doi:10.1016/j.compositesb.2020.108495

Cited by 18 publications

(8 citation statements)

References 36 publications

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“…When the cracks reach the fish scales particles, the fracture energy is dissipated [10], which enhances the tribological performance of the composites.…”

Section: Reinforcing Analysismentioning

confidence: 99%

“…However, the inherent poor wear resistance of cured epoxy seriously restricted tribological applications [9]. To overcome this issue, several types of fillers were used, such as silica, alumina, and clay, as well as, graphene oxide, graphene nanoplatelets and multi-wall carbon nanotube are added to the epoxy matrix [10,11]. The composites reinforced by nanofillers such as ceramics and carbon-fillers have several critical disadvantages such as several manufacturing complications, poor adhesion to the epoxy matrix and non-biodegradability.…”

Section: Introductionmentioning

confidence: 99%

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Tribological and Mechanical Performance of Epoxy Reinforced by Fish Scales Powder

Ghazi¹,

Muhmmed²,

Taieh³

et al. 2022

RCMA

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The study was conducted to use fish scales powder as animal biomass to prepare epoxy composites. Fish scales powder is beneficial in reducing environmental pollutants. The fish scales powder was added to the epoxy matrix for improving the interfacial bonding between the scales and the epoxy matrix. However, a direct method was used to prepare epoxy composites, and samples were cut according to ASTM standards for mechanical and tribological tests. Interfacial interaction between the fish scales powder and epoxy was investigated by FTIR and SEM. It was found that the fish scales powder contents affect the mechanical properties and tribological behaviour of produced composites. Compared to pure epoxy, the load of 10 wt.% fish scales powder increased the tensile strength by 16.0%. As well as, the coefficient of friction was reduced by 16.0% and wear resistance was enhanced by 48.58%. The improvements in the performance of composites are contributed to the hydrogen bonding formed between fish scales powder and epoxy matrix.

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“…When the cracks reach the fish scales particles, the fracture energy is dissipated [10], which enhances the tribological performance of the composites.…”

Section: Reinforcing Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tribological and Mechanical Performance of Epoxy Reinforced by Fish Scales Powder

Ghazi¹,

Muhmmed²,

Taieh³

et al. 2022

RCMA

View full text Add to dashboard Cite

show abstract

“…As thermosetting polymers with broad application prospects, − epoxy polymers (EPs) have attracted extensive attention for their superior mechanical properties brought about by three-dimensional crosslinked structures. Compared with phenol-formaldehyde resins and polyethylene, EPs have the potential for possessing high moduli, , high strength, − and high toughness, − which is more suitable for the preparation of high-performance composites. , Various approaches have been adopted to elevate the performance of EPs to meet increasing requirements. , However, designing crosslinked polymers with the combination of high modulus, high strength, and high toughness is still a long-term and arduous challenge due to many influencing factors, such as molecular stiffness, intermolecular forces, and chain packing. , These factors usually intricately affect each other, resulting in intrinsically conflicting mechanical properties in the design. As such, it is imperative to design novel EPs with high moduli, high strength, and high toughness from a more intuitive point of view.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with phenolformaldehyde resins and polyethylene, EPs have the potential for possessing high moduli, 14,15 high strength, 16−18 and high toughness, 19−21 which is more suitable for the preparation of high-performance composites. 22,23 Various approaches have been adopted to elevate the performance of EPs to meet increasing requirements. 24,25 However, designing crosslinked polymers with the combination of high modulus, high strength, and high toughness is still a long-term and arduous challenge due to many influencing factors, such as molecular stiffness, intermolecular forces, and chain packing.…”

Section: ■ Introductionmentioning

confidence: 99%

Machine-Learning-Assisted Design of Highly Tough Thermosetting Polymers

Zhao

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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Despite advances in machine learning for accurately predicting material properties, forecasting the performance of thermosetting polymers remains a challenge due to the sparsity of historical experimental data and their complicated crosslinked structures. We proposed a machine-learning-assisted materials genome approach (MGA) for rapidly designing novel epoxy thermosets with excellent mechanical properties (high tensile moduli, high tensile strength, and high toughness) through high-throughput screening in a vast chemical space. Machine-learning models were established by combining attention- and gate-augmented graph convolutional networks, multilayer perceptrons, classical gel theory, and transfer learning from small molecules to polymers. Proof-of-concept experiments were carried out, and the structures designed by the MGA were verified. Gene substructures affecting the modulus, strength, and toughness were also extracted, revealing the mechanisms of polymers with high mechanical properties. The developed strategy can be employed to design other thermosetting polymers efficiently.

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“…In modern industries, epoxy-based resins are considered one of the most promising thermosetting polymers with outstanding merits, including low shrinkage, better adhesion, admirable chemical stability, and corrosion resistance [1][2][3][4]. These facts made them a candidate material to employ widely as coating materials, laminates, microelectronic materials, and aerospace materials [5][6][7][8][9]. Nevertheless, similar to other polymer resins, its extreme flammable nature and lower mechanical strength act as the potential barriers to limiting its prevalent applications.…”

Section: Introductionmentioning

confidence: 99%

Application of r-GO-MMT Hybrid Nanofillers for Improving Strength and Flame Retardancy of Epoxy/Glass Fibre Composites

Kavimani

Stalin²,

Gopal

et al. 2021

Advances in Polymer Technology

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The application of nanomaterials as a strengthening agent in the fabrication of polymer nanocomposites has gained significant attention due to distinctive properties which can be utilised in structural applications. In this study, reduced graphene oxide (r-GO) and montmorillonite (MMT) nanoclay were used as filler materials to fabricate hybrid epoxy-based nanocomposites. The synergistic effect of nanomaterials on flammability and mechanical behaviour of nanocomposites were studied. Results revealed that the addition of nanofiller showcases 97% and 44.5% improvement in tensile and flexural strength. However, an increment in the percentage of filler material over 0.3% exhibits a decremental mechanical property trend. Likewise, the addition of nanofiller increases the nonignition timing of the glass-fibre-reinforced epoxy composites. Fracture surface morphology displays the occurrence of the ductile fracture mechanism owing to the presence of hybrid fillers.

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A cast-in-place fabrication of high performance epoxy composites cured in an in-situ synthesized 3D foam of nanofibers

Cited by 18 publications

References 36 publications

Tribological and Mechanical Performance of Epoxy Reinforced by Fish Scales Powder

Tribological and Mechanical Performance of Epoxy Reinforced by Fish Scales Powder

Machine-Learning-Assisted Design of Highly Tough Thermosetting Polymers

Application of r-GO-MMT Hybrid Nanofillers for Improving Strength and Flame Retardancy of Epoxy/Glass Fibre Composites

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