Effect of organo-modified montmorillonite nanoclay on mechanical, thermal and ablation behavior of carbon fiber/phenolic resin composites

Rao, Golla Rama; Srikanth, I.; Reddy, Kotha Laxma

doi:10.1016/j.dt.2020.05.012

Cited by 43 publications

(24 citation statements)

References 32 publications

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“…This can be attributed to the enhancement of the chemical bonding between the polymer matrix and the organically modified nanoclay, strengthening the matrix further. However, at higher nanoclay loading, the mechanical locking descended, which caused the decrease in strength and modulus [ 22 ].…”

Section: Resultsmentioning

confidence: 99%

“…The interface between the organic and inorganic phases can be greatly increased in the exfoliated state, and the composites with optimum properties can then be obtained [ 18 ]. Montmorillonite nanoclay has been much considered to be the most attractive nanoclay as the secondary reinforcing material for carbon fiber-reinforced polymer composites due to its high aspect ratio (100–1000), high modulus (170 GPa), large surface area (750 m 2 /g), and high thermal properties [ 17 , 21 , 22 ]. It was reported that the addition of a small content of nanoclay particles could considerably improve the stiffness and strength of polymer composites.…”

Section: Introductionmentioning

confidence: 99%

“…Islam et al [ 13 ] showed that carbon fiber fabric–epoxy composites modified with 2.0 wt% of montmorillonite nanoclay provided the highest flexural strength, flexural modulus, storage modulus, and glass transition temperature. Rao et al [ 22 ] prepared carbon fiber fabric–phenolic composites with montmorillonite nanoclay as a filler and reported that the flexural strength, flexural modulus, and thermal stability of the composite increased when the nanoclay loading increased up to 2.0 wt% of nanoclay and decreased when the nanoclay loading was more than 2.0 wt%. Tareq et al [ 23 ] exhibited the flexural strength and storage modulus improvements of carbon fiber fabric–epoxy composites by 9% and 25%, respectively, by the inclusion of 2.0 wt% montmorillonite nanoclay.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Organo-Modified Montmorillonite Nanoclay on Mechanical, Thermo-Mechanical, and Thermal Properties of Carbon Fiber-Reinforced Phenolic Composites

et al. 2021

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This work aims to explore the effect of organo-modified montmorillonite nanoclay (O-MMT) on the mechanical, thermo-mechanical, and thermal properties of carbon fiber-reinforced phenolic composites (CFRP). CFRP at variable O-MMT contents (from 0 to 2.5 wt%) were prepared. The addition of 1.5 wt% O-MMT was found to give the heat resistant polymer composite optimum properties. Compared to the CFRP, the CFRP with 1.5 wt% O-MMT provided a higher tensile strength of 64 MPa (+20%), higher impact strength of 49 kJ/m2 (+51%), but a little lower bending strength of 162 MPa (−1%). The composite showed a 64% higher storage modulus at 30 °C of 6.4 GPa. It also could reserve its high modulus up to 145 °C. Moreover, it had a higher heat deflection temperature of 152 °C (+1%) and a higher thermal degradation temperature of 630 °C. This composite could maintain its mechanical properties at high temperature and was a good candidate for heat resistant material.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Organo-Modified Montmorillonite Nanoclay on Mechanical, Thermo-Mechanical, and Thermal Properties of Carbon Fiber-Reinforced Phenolic Composites

et al. 2021

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“…Table 4 shows that as the clay content increased in the resin, the volume fraction of fibre in composites decreased. It is owing to increased viscosity of the resin at higher nanoclay loadings, which do not squeeze out of the fabric layers during composite processing, resulting in a lower fibre volume fraction [8][9][10][11][12][13] .…”

Section: Volume Fraction Of Fibre In Nanoclay Added C-bz Compositesmentioning

confidence: 99%

“…Many studies on nanofillers such as nanosilica, nanographite, carbon nanotube, organo-nanoclay, polyhedral oligomer silsesquioxane (POSS), and nanozirconium have been published in the literature to improve the thermomechanical efficiency of high temperature polymer composites [6][7][8][9][10][11] . Organic treated montmorillonite nanoclay is the most commonly used filler since it is readily available and miscible with resin systems.…”

Section: Introductionmentioning

confidence: 99%

Effect of Organo Montmorillonite Nanoclay on Mechanical Properties Thermal Stability and Ablative Rate of Carbon fiber Polybenzoxazine Resin Composites

2021

Self Cite

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Organo-Montmorillonite (o-MMT) nanoclay added polybenzoxazine resin (type I composites) were prepared with varying amounts of clay (0, 1, 2, 4 and 6 wt %). Clay dispersion, changes in curing behaviour and thermal stability were assessed in type I composites. Findings from these studies of type I composites were used to understand thermal stability, mechanical, and mass ablation rate behaviour of nanoclay added carbon fiber reinforced polybenzoxazine composites (type II). Interlaminar shear strength and flexural strength of type II composites increase by 25% and 27%, respectively at 2 wt% addition of clay. An oxy-acetylene torch test with a constant heat flux of 125 w/cm2 was used to investigate mass ablation rate of type II composites. The ablation rate has increased as the weight percentage of clay has increased. This is contradicting to type I composites with up to 6 wt% clay and type II composites with up to 4 wt% clay, which have improved thermal stability. The microstructure of the ablated composites was examined using scanning electron microscopy. Increased ablation rates are due to the reaction of charred matrix with nanoclay, which exposes bare fibers to the ablation front, resulting in higher mechanical erosion losses.

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Facet Engineering Boosts Interfacial Compatibility of Inorganic‐Polymer Composites

Yu,

Ye,

Zhang

et al. 2024

Advanced Science

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The interfacial compatibility between inorganic particles and polymer is crucial for ensuring high performance of composites. Current efforts to improve interfacial compatibility preferentially rely on organic modification of inorganic particles, leading to their complex process, high costs, and short lifespans due to aging and decomposition of organic modifiers. However, the fabrication of inorganic particles free from organic modification that is highly compatible in polymer still remains a great challenge. Herein, a novel facet‐engineered inorganic particle that exhibit high compatibility with widely used polymer interface without organic modification is reported. Theoretical calculations and experimental results show that (020) and (102) facets of inorganic particles modulate local coordination environment of Ca atoms, which in turn regulate d‐orbital electron density of Ca atoms and electron transfer paths at interfaces between polymer and inorganic particles. This difference alters the molecular diffusion, orientation of molecular chains on surface of inorganic particles, further modulating interfacial compatibility of composites. Surprisingly, the facet‐engineered inorganic particles show exceptional mechanical properties, especially for tensile strain at break, which increases by 395%, far superior to state‐of‐the‐art composites counterparts. Thus, the method can offer a more benign approach to the general production of high‐performance and low‐cost polymer‐inorganic composites for diverse potential applications.

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Effect of organo-modified montmorillonite nanoclay on mechanical, thermal and ablation behavior of carbon fiber/phenolic resin composites

Cited by 43 publications

References 32 publications

Effect of Organo-Modified Montmorillonite Nanoclay on Mechanical, Thermo-Mechanical, and Thermal Properties of Carbon Fiber-Reinforced Phenolic Composites

Effect of Organo-Modified Montmorillonite Nanoclay on Mechanical, Thermo-Mechanical, and Thermal Properties of Carbon Fiber-Reinforced Phenolic Composites

Effect of Organo Montmorillonite Nanoclay on Mechanical Properties Thermal Stability and Ablative Rate of Carbon fiber Polybenzoxazine Resin Composites

Facet Engineering Boosts Interfacial Compatibility of Inorganic‐Polymer Composites

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