Tribological performances of epoxy resin composite coatings using hexagonal boron nitride and cubic boron nitride nanoparticles as additives

Zhao, Wenchao; Zhao, Wenjie; Huang, Zhiping; Liu, Gang; Wu, Bin

doi:10.1016/j.cplett.2019.136646

Cited by 48 publications

(30 citation statements)

References 35 publications

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“…Authors have concluded that among the studied nano‐additives‐based lubricants, hBN‐based nanolubricant showed a better reduction in COF and wear. Zhao et al 35 studied the tribological performance of polydopamine modified hBN and cubic boron nitride (CBN) epoxy resin by using a reciprocating type ball‐on‐plan tribotesting machine. The outcomes indicated that the COF value was diminished under dry and seawater condition because of the self‐lubricating effect of hBN nanoparticles and high hardness of CBN particles.…”

Section: Introductionmentioning

confidence: 99%

Effects of hexagonal boron nitride based nanofluid on the tribological and performance, emission characteristics of a diesel engine: An experimental study

Ramteke

Chelladurai

2020

Engineering Reports

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In recent years, nanoparticles have attracted researchers attention due to its wear and friction reduction characteristics in lubricating oil. Hence, it is of utmost importance to consider nanoparticles additive in the lube oil and study its impact on the tribological and performance characteristics of mechanical systems. Therefore, this paper intends to explore the impact of conventional and hexagonal boron nitride (hBN) nanoparticles‐based lubricant on the wear of engine components, performance, and emission characteristics of a diesel engine. The different concentration namely, 0.5 wt.%, 0.75 wt.%, and 1 wt.% BN‐based nanofluids were formulated. The formulated nanofluids were characterized by UV‐spectroscopy and differential scanning calorimetry (DSC) for dispersion and heat capacity analyses respectively. From the characterization results, 1wt.% BN nanofluid was found stable and well dispersed and therefore, considered for further experimental analysis. The outcomes of the present study revealed that 1 wt.% BN‐based nanofluid shown better anti‐wear properties and improvement in performance, emission characteristics of the diesel engine. The obtained results will be useful for the lubricant industry to think toward formulating nanoparticles‐based lubricating oil.

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Section: Introductionmentioning

confidence: 99%

Effects of hexagonal boron nitride based nanofluid on the tribological and performance, emission characteristics of a diesel engine: An experimental study

Ramteke

Chelladurai

2020

Engineering Reports

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“…Remarkable performance of the composite in seawater condition is attributed to diminishing the direct contact of the sliding surfaces which declines adhesive wear, taking away the generated frictional heat which prevents thermal softening, removing the produced wear debris which results in smoother and cleaner surface [140]. In a similar work, polydopamine (PDA) was used to functionalize the BN nanofillers in order to better dispersion within the epoxy matrix; moreover, the binary reinforcements containing both h-BN and c-BN with proportion of 1:2 (HC12), 1:1 (HC11), and 2:1 (HC21) were examined [141]. As can be seen in the cross-section profiles of the depth of wear cracks (Figure 15a), in dry condition the maximum value belongs to pure epoxy with 46 µm and the minimum values belong to HC21 and c-BN with 14 and 12 µm, respectively.…”

Section: Pmcmentioning

confidence: 99%

“…Obviously, c-BN represented better results than h-BN due to its higher hardness. However, when the reinforcement was contained both of them, the composite showed excellent anti-wear behavior due to synergy of hard cubic phase of BN and good lubricity of hexagonal phase of BN [141].…”

Section: Pmcmentioning

confidence: 99%

“…Typically, fiber reinforced CMCs represent the best mechanical performances among different kind of them. One important strengthening mechanism in this group of composite materials is crack deflection in which lubricity between the fiber and matrix seems essential [141]. Conventional solid lubricants for SiC fiber are pyrolytic carbon and h-BN [142].…”

Section: Ceramic Matrix Composite (Cmc)mentioning

confidence: 99%

“…Cross-section profiles of the h-BN@PDA/c-BN@PDA/epoxy coatings (a) under dry sliding, and (c) seawater condition; wear rate of the h-BN@PDA/c-BN@PDA/epoxy coatings in (b) dry sliding, and (d) seawater condition (Reprinted with permission from Elsevier, Copyrights 2019)[141].…”

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Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites

et al. 2020

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Ever-increasing significance of composite materials with high thermal conductivity, low thermal expansion coefficient and high optical bandgap over the last decade, have proved their indispensable roles in a wide range of applications. Hexagonal boron nitride (h-BN), a layered material having a high thermal conductivity along the planes and the band gap of 5.9 eV, has always been a promising candidate to provide superior heat transfer with minimal phonon scattering through the system. Hence, extensive researches have been devoted to improving the thermal conductivity of different matrices by using h-BN fillers. Apart from that, lubrication property of h-BN has also been extensively researched, demonstrating the effectivity of this layered structure in reduction of friction coefficient, increasing wear resistance and cost-effectivity of the process. Herein, an in-depth discussion of thermal and tribological properties of the reinforced composite by h-BN will be provided, focusing on the recent progress and future trends.

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Mechanical Properties and Thermal Conductivity of Epoxy Resin Reinforced with Functionalized Graphene Nanosheets and Woven Glass Fabric

et al. 2021

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The reinforcing effects of functionalized graphene sheets (FGSs) on thermosetting epoxies are examined to understand the feasibility of these FGSs–epoxy nanocomposites in composite applications. The nanocomposites are prepared by compression molding with different graphene contents (0, 1, and 3 wt%) and different chemical treatments including FGSs and reduced graphene oxide (RGO) nanosheets. In addition, two silane molecules (octyltriethoxysilane [OTES] and glycidoxypropyltrimethoxysilane [GPTMS]) are used as coupling agents. Morphological analysis shows that the use of functionalized graphene oxide nanosheets in woven glass fabric/epoxy nanocomposites significantly improves the dispersion distribution of graphene nanosheets inside the matrix and increases their interfacial adhesion. The results reveal that the nanocomposites containing functionalized graphene nanosheets show the most promising improvement in terms of thermal and mechanical properties. In particular, Young's modulus increases by up to 17% and 25% with only 3% of functionalized graphene oxide using OTES and GPTMS, respectively. The result of the water droplet contact angle of the nanocomposites reinforced by graphene oxide functionalized by octyltriethoxysilane (OTES) shows an increase to a value of 105.80, indicating the super hydrophobic nature.

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Tribological performances of epoxy resin composite coatings using hexagonal boron nitride and cubic boron nitride nanoparticles as additives

Cited by 48 publications

References 35 publications

Effects of hexagonal boron nitride based nanofluid on the tribological and performance, emission characteristics of a diesel engine: An experimental study

Effects of hexagonal boron nitride based nanofluid on the tribological and performance, emission characteristics of a diesel engine: An experimental study

Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites

Mechanical Properties and Thermal Conductivity of Epoxy Resin Reinforced with Functionalized Graphene Nanosheets and Woven Glass Fabric

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