Study on the properties of multi-walled carbon nanotubes reinforced poly (vinyl alcohol) composites

Sadek, E. M.; El‐Nashar, D. E.; Ward, Azza A.; Ahmed, Sahar M.

doi:10.1007/s10965-018-1641-0

Cited by 32 publications

(19 citation statements)

References 43 publications

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“…In these cases, a more efficient stress transfer from the matrix to the filler explains the higher tensile strength shown in Table . The same behavior was described by De Sousa et al and Sadek et al .…”

Section: Resultssupporting

confidence: 75%

“…Na‐C clay has a smoother surface, while 10A‐C and Na‐A clays have a much rougher surface. In the case of the 10A‐C clay, the rough surface is typical of modified clays and has a structure with higher compactness due to the better surfactant packing density exposed as comprised regular flat layers . Mat and co‐workers described the typical surface of a natural Mt that matches the surface shown in Fig.…”

Section: Resultsmentioning

confidence: 86%

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Acrylonitrile butadiene nanocomposites containing different clays by latex compounding method

Cova

Fernández

et al. 2018

Polymer Engineering & Sci

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Considering elastomers nanocomposites, most of the works are focused on natural rubber, styrene butadiene rubber and rubber blends, while few of them deal with nitrile butadiene rubber (NBR). This article presents the reinforcing effect of two raw sodic montmorillonites (Mts) and one organoclay on NBR matrix prepared by the latex compounding method. Raw Mts increase the mechanical properties of neat matrices. A pseudoplastic behavior is observed with the incorporation of clays into the NBR latex, indicating interactions between polymer chains and clay sheets, in agreement with the results of zeta potential analysis. X‐ray diffraction evaluates changes in the interlayer distance of the clay, indicating the NBR intercalation phenomenon in all cases. Matrices with different clay proportions present variations in the mechanical properties, depending if the aggregation phenomenon is promoted. Morphological analysis of clays and nanocomposites as well as thermal analysis were performed. The variation in mechanical properties after an aging process was studied, evaluating the effects on the tensile strength, ultimate strain and 300% modulus. POLYM. ENG. SCI., 59:736–744, 2019. © 2018 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 75%

Section: Resultsmentioning

confidence: 86%

Acrylonitrile butadiene nanocomposites containing different clays by latex compounding method

Cova

Fernández

et al. 2018

Polymer Engineering & Sci

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“…The XRD patterns of the PES/fCNTs displayed a single diffraction peak of PES (2θ = 18.4°) with very small peaks of fCNTs. This indicates that PES diffraction peaks were predominant over those for fCNTs, suggesting the homogeneous dispersion of fCNTs in PES membranes [ 41 ]. Moreover, for small amounts of fCNTs, the quite small peak intensities were strongly related to the detection limit of the XRD powder diffractometer.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Polymer Membranes Impregnated with Carbon Nanotubes for Olive Mill Wastewater

et al. 2022

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In this study, polymer membrane(s) impregnated with carbon nanotubes (CNTs) were developed, characterized and evaluated for removing phenolic compounds from olive mill wastewater; thus, protecting the environment and public health. Polyethersulfone/functionalized, multi-walled carbon nanotube (PES/fCNTs) membranes were synthesized via the phase inversion method using PES and acid-treated CNTs. The prepared membranes were then characterized by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR) and contact angle. Results obtained from this study indicate a more hydrophilic surface for the prepared PES/fCNTs membranes, with a higher pure water flux compared to the polyethersulfone (PES) membranes. In addition, the amount of fCNTs in the membranes was found to be the most significant factor affecting the morphology and water flux of the membranes. The PES/fCNTs membranes at 1 bar with 0 wt.% and 1 wt.% of CNTs showed water flux of 37.8 and 69.71 kg/h.m2, respectively. In addition, PES/fCNTs membranes with 0.5 wt.% fCNTs showed the highest total phenol content removal of 74%.

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“…shows the X-ray diffractograms of the blank PVA and PSC composite films. The characteristic diffraction peaks of neat PVA occurred at 2θ = 19.6° and 40.7° which is attributed to the semicrystalline nature of PVA [9,[45][46][47]. The small hump at 40° was also characteristic for PVA [48].…”

Section: Thermogravimetric Analysis (Tga)mentioning

confidence: 87%

Spathodea campanulata bud fluid reinforced mechanical, hydrophilicity and degradation studies of poly (vinyl alcohol) matrix

et al. 2020

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The present study aims to scrutinize the influence of Spathodea campanulata (SC) bud fluid on various properties of PVA. The different volumes of SC bud fluid doped PVA films were prepared by the solvent evaporation technique and analyzed by various characterization techniques. The molecular interactions of PVA with SC bud fluid was confirmed by FTIR studies. Tensile properties such as tensile strength and Young's modulus increased from 48 ± 4 to 59 ± 10 and 2069 ± 110 to 2537 ± 404 MPa respectively compared to PVA. The DSC measurements of prepared films depicted an increased glass transition temperature than PVA. The thermal stability of composite films was not affected compared to the pristine PVA. The XRD results of all the films represented a semi-crystalline material with a characteristic peak at 2θ = 20°. The morphology studies revealed the homogeneous surface due to the good dispersion of SC bud fluid. The water contact angle findings shown the composite films were hydrophilic. Composite film solubility in water increased after the incorporation of SC bud fluid. The water vapor transmission rate of composite films were assessed. The Soil Burial tests indicated the degradation rate of PVA increased in composite films due to increased hydrophilicity.

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Study on the properties of multi-walled carbon nanotubes reinforced poly (vinyl alcohol) composites

Cited by 32 publications

References 43 publications

Acrylonitrile butadiene nanocomposites containing different clays by latex compounding method

Acrylonitrile butadiene nanocomposites containing different clays by latex compounding method

Preparation and Characterization of Polymer Membranes Impregnated with Carbon Nanotubes for Olive Mill Wastewater

Spathodea campanulata bud fluid reinforced mechanical, hydrophilicity and degradation studies of poly (vinyl alcohol) matrix

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