Tribological properties of epoxy composite coatings reinforced with functionalized C-BN and H-BN nanofillers

Yu, Jingjing; Zhao, Wenjie; Wu, Yunying; Wang, DeLiang; Feng, Ruotao

doi:10.1016/j.apsusc.2017.11.204

Cited by 100 publications

(62 citation statements)

References 40 publications

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“…These may be due to the interactions between PEHA/PVA‐s with h‐BN leading to the decrease of the intermolecular interaction between the PVA chains and thus the crystalline degree . Those results are in accordance with the reported results during the study of tribological properties of epoxy composite coatings reinforced with functionalized C‐BN and h‐BN nanofillers .…”

Section: Resultssupporting

confidence: 91%

h‐BN huddled starch reinforced polyethylhexylacrylate\polyvinyl alcohol thin films for packaging applications

Prusty

Swain

2018

Polymer Composites

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Herein, starch hybrid polyethylhexylacrylate\polyvinyl alcohol (PEHA/PVA‐s) thin films are synthesized by in situ polymerization of ethylhexylacrylate (EHA) with incorporation of hexagonal boron nitride (h‐BN). The occurrence of h‐BN nanoparticles in PEHA/PVA‐s thin films is characterized by Fourier transform infrared (FTIR) spectroscopy, X‐ray diffraction (XRD), and energy dispersive X‐ray (EDX) analysis. The field emission scanning electron microscopy (FESEM) images illustrates the embedment of h‐BN nanoparticles in the PEHA/PVA‐s films. It is found that, h‐BN nanoparticles have an average particle size of 100 nm observed with a lattice fringe of 0.35 nm are known from high resolution transmission electron microscopy (HRTEM) images. The surface and nano‐tribological features of thin films are studied by atomic force microscope (AFM). The thermal conductivity of films is enhanced with increase in h‐BN concentrations. From rheological study, it is observed that, the tan δ value varies from 0.3 to 0.5. The biodegradation, refractive index, and chemical resistance properties of the thin films are studied. The oxygen barrier properties of the thin films are substantially reduced by 18 folds due to incorporation of huddled h‐BN layers. The prepared PEHA/PVA‐s@h‐BN thin films with improved physicochemical behaviors and reduction in gas barrier properties can enable the material for packaging applications. POLYM. COMPOS., 40:1810–1818, 2019. © 2018 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 91%

h‐BN huddled starch reinforced polyethylhexylacrylate\polyvinyl alcohol thin films for packaging applications

Prusty

Swain

2018

Polymer Composites

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“…In order to improve the tribological properties of lubricating oil further, filling it with different nanomaterials, such as Cu NPs, MoS 2 and GO, is an effective and convenient way. In recent years, more and more layered materials have been used in lubricants, for example, hexagonal boron nitride (H‐BN), MoS 2 , graphite and GO . These researches accelerated the development of new two‐dimensional (2D) lubricating materials.…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Synthesis of Copper/Polydopamine‐Functionalized Oxygenated Carbon Nitride Composites and Their Application as Lubricants

Min

Jia

et al. 2020

ChemistrySelect

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The wet chemical reduction method was used to modify polydopamine (PDA) functionalized oxygenated carbon nitride (O‐g‐C3N4) nanosheets to prepare in situ growth of Cu nanoparticles (Cu NPs) decorated on nanosheets. The PDA attached to the surface of O‐g‐C3N4 provided a uniformly distributed platform for copper nanoparticles. It also provided rich functional groups and provided good conditions for the dispersion of Cu/PDA/O‐g‐C3N4 in pure oil. Through TEM testing, Cu NPs with a diameter of 5–10 nm were evenly distributed on the PDA/O‐g‐C3N4 nanosheets. Through the sliding test on the steel surface, it was obvious that adding 0.2 wt % Cu/PDA/O‐g‐C3N4 to pure oil had a lowest coefficient of friction. In addition, the wear marks on the surface of Cu/PDA/O‐g‐C3N4 steel discs were studied with an optical microscope and a three‐dimensional profiler and its wear resistance was better than Cu NPs, O‐g‐C3N4 and Cu/O‐g‐C3N4.

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“…However, epoxies were brittle and have inferior resistance to crack spread, thereby requiring the use of toughening agents to prevent structural failure . Over recent decades, plentiful attempts were made to raise the brittleness and fracture energy of epoxies by incorporating rubber and thermoplastic particles and inorganic nanoparticles among others. For rubber and thermoplastic particles, an equivalent high loading of toughening agents (more than 10 wt%) was demanded for reasonably improve fracture properties.…”

Section: Introductionmentioning

confidence: 99%

Surface modification of boron nitride by bio‐inspired polydopamine and different chain length polyethylenimine co‐depositing

Wang

Guo

Zhu

et al. 2019

Polymers for Advanced Techs

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We established a novel, easy, and versatile method of obtaining diverse and controllable interphases between epoxy resin and fillers. The method involved the co‐deposition of polydopamine (PDA) and polyethyleneimine (PEI) with different molecular lengths on boron nitride (BN) surface. The obtained PDA/PEI‐modified BN composites showed significantly improved mechanical properties, including tensile strength, toughness, and elongation at break. For example, the tensile strength, fracture toughness, and elongation at break of EP composite increased by 51%, 132%, and 170% compared with EP when the PEI molecular weight was 10 000, respectively. These results suggested that the interphases between BN and EP matrix can be adjusted by changing the molecular lengths of grafted modifiers, thereby offering a new method for the reasonable designing and exploitation of the BN‐based composite materials.

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Tribological properties of epoxy composite coatings reinforced with functionalized C-BN and H-BN nanofillers

Cited by 100 publications

References 40 publications

h‐BN huddled starch reinforced polyethylhexylacrylate\polyvinyl alcohol thin films for packaging applications

h‐BN huddled starch reinforced polyethylhexylacrylate\polyvinyl alcohol thin films for packaging applications

Biomimetic Synthesis of Copper/Polydopamine‐Functionalized Oxygenated Carbon Nitride Composites and Their Application as Lubricants

Surface modification of boron nitride by bio‐inspired polydopamine and different chain length polyethylenimine co‐depositing

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