Mechanical, thermal, and rheological studies of phenolic resin modified with intercalated graphite prepared via liquid phase intercalation

Sekhar, N. C.; Varghese, Lity Alen

doi:10.1016/j.polymertesting.2019.106010

Cited by 19 publications

(13 citation statements)

References 18 publications

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“…In another work by Pelin et al, 24 optimum flexural properties were obtained at 1 wt.% SiC nanoparticles addition to phenolic resin. Sekhar et al 27 also obtained optimum flexural strength with the addition of 1 wt.% graphite bisulfate to phenolic resin.…”

Section: Flexural Propertiesmentioning

confidence: 94%

“…Sekhar et al 27 also obtained optimum flexural strength with the addition of 1 wt.% graphite bisulfate to phenolic resin.…”

Section: Flexural Propertiesmentioning

confidence: 94%

“…Optimum flexural strength was obtained with 0.5 wt.% CNTs while the addition of zirconia did not improve the flexural strength. Sekhar et al 27 studied the mechanical and thermal properties of phenolic resin modified with natural graphite and graphite bisulfate. Graphite bisulfate was added at 0.1, 0.5, and 1 wt.% addition, while 1 wt.% natural graphite particles were added to the phenolic resin.…”

Section: Introductionmentioning

confidence: 99%

“…Improvement in the ablation resistance of CFRP composites and flexural properties of phenolic resin with the incorporation of these filler materials have been well documented in the literature. [24][25][26][27] However, there is limited information on the mechanical properties of fiber-reinforced phenolic containing these particles within the phenolic matrix. Obviously, there is a great need to develop CFRP composites with superior service lives and long-term durability.…”

Section: Introductionmentioning

confidence: 99%

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Influence of microfillers addition on the flexural properties of carbon fiber reinforced phenolic composites

Abdulganiyu

Oguocha

Odeshi

2021

Journal of Composite Materials

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The effects of microfiller addition on the flexural properties of carbon fiber reinforced phenolic (CFRP) matrix composites were investigated. The CFRP was produced using colloidal silica and silicon carbide (SiC) microfillers, 2 D woven carbon fibers, and two variants of phenolic resole (HRJ-15881 and SP-6877). The resins have the same phenol and solid content but differ in their viscosities and HCHO (formaldehyde) content. The weight fractions of microfillers incorporated into the phenolic matrix are 0.5 wt.%, 1 wt.%, 1.5 wt.%, and 2 wt.%. Flexural properties were determined using a three-point bending test and the damage evolution under flexural loading was investigated using optical and scanning electron microscopy. The results indicated that the reinforcement of phenolic resins with carbon fibers increased the flexural strength of the HRJ-15881 and SP-6877 by 508% and 909%, respectively. The flexural strength of the CFRP composites further increased with the addition of SiC particles up to 1 wt.% SiC but decreased with further increase in the amount of SiC particles. On the other hand, the flexural modulus of the CFRP composites generally decreased with the addition of SiC microfiller. Both the flexural strength and flexural modulus of the CFRP did not improve with the addition of colloidal silica particles. The decrease in flexural properties is caused by the agglomeration of the microfillers, with colloidal silica exhibiting more tendency for agglomeration than SiC. The fractured surfaces revealed fiber breakage, matrix cracking, and delamination under flexural loading. The tendency for failure worsened at microfiller addition of ≥1.5 wt.%.

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Section: Flexural Propertiesmentioning

confidence: 94%

“…Sekhar et al 27 also obtained optimum flexural strength with the addition of 1 wt.% graphite bisulfate to phenolic resin.…”

Section: Flexural Propertiesmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of microfillers addition on the flexural properties of carbon fiber reinforced phenolic composites

Abdulganiyu

Oguocha

Odeshi

2021

Journal of Composite Materials

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“…It has been reported that liquid phase intercalation can be used to insert an array of inorganic and organic molecules like hydrazine, dimethyl sulfoxide (DMSO), sulfuric acid, urea, acetone, ethyl alcohol, tetrahydrofuran N,N-dimethyl formamide, chloroform, toluene and isopropylamine (i-PrA) into layered materials 47,[51][52][53] . In the case of hydrazine and dimethylformamide (DMF) intercalated MXene 47 , it has been found that deintercalation is also possible by drying the intercalated product above the boiling points of hydrazine and DMF, which makes the process reversible.…”

Section: Liquid Phase Intercalationmentioning

confidence: 99%

Intercalation as a versatile tool for fabrication, property tuning, and phase transitions in 2D materials

et al. 2021

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Recent advances in two-dimensional (2D) materials have led to the renewed interest in intercalation as a powerful fabrication and processing tool. Intercalation is an effective method of modifying the interlayer interactions, doping 2D materials, modifying their electronic structure or even converting them into starkly different new structures or phases. Herein, we discuss different methods of intercalation and provide a comprehensive review of various roles and applications of intercalation in next‐generation energy storage, optoelectronics, thermoelectrics, catalysis, etc. The recent progress in intercalation effects on crystal structure and structural phase transitions, including the emergence of quantum phases are also reviewed.

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Controlled curing of resole phenol formaldehyde/unsaturated polyester blends and applying for steel–steel adhesive

Badr

Darwish

El‐Rahman

et al. 2022

J of Applied Polymer Sci

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Polymer blending technique is a promising solution for solving some critical industrial problems by gaining new desired properties for the newly formed materials. Blending various ratios of resole phenol formaldehyde (RPF)/unsaturated polyester (USPE), 10, 20, 30, to 90 wt %, were processed to optimize the mixing conditions by controlling time, temperature, and ratio of blending. In addition, the curing conditions of touch dry, full curing, shelf life, hardness and the steel–steel adhesive were investigated. The blend ratio RPF/USPE (70:30) was selected as an optimized sample at 150°C for 50 min. It was characterized by Fourier transform infrared spectroscopy, dynamic mechanical analysis, scanning electron microscopy, X‐ray diffraction, thermogravimetric analysis, and differential scanning calorimeter. The curing process and the interactions between RPF and USPE were studied. Durability with artificial weather aging was evaluated visually and by measuring hardness which confirmed the prepared material is fit for outdoor uses. This work introduces a strategy to control the curing process, enhance the shelf life and adhesion properties for steel–steel adhesives based on RPF/USPE blends.

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Mechanical, thermal, and rheological studies of phenolic resin modified with intercalated graphite prepared via liquid phase intercalation

Cited by 19 publications

References 18 publications

Influence of microfillers addition on the flexural properties of carbon fiber reinforced phenolic composites

Influence of microfillers addition on the flexural properties of carbon fiber reinforced phenolic composites

Intercalation as a versatile tool for fabrication, property tuning, and phase transitions in 2D materials

Controlled curing of resole phenol formaldehyde/unsaturated polyester blends and applying for steel–steel adhesive

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