Effects of cetyltrimethylammonium bromide (CTAB) on the structural characteristic of non-expandable muscovite

Ismail, Nor Hafizah Che; Bakhtiar, Nur Suraya Anis Ahmad; Hazizan, Akil

doi:10.1016/j.matchemphys.2017.05.007

Cited by 20 publications

(10 citation statements)

References 32 publications

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“…The increment of Si elements in treated muscovite particles was due to the effect of the grinding process which led to an increase in the amount of exposed hydroxyl bonded muscovite aluminosilicate layers. Similar observation was reported by Che Ismail and friends [24].…”

Section: Intercalation Of LI + Ions Into Muscovitesupporting

confidence: 91%

“…The crystallite size of stacked aluminosilicate layers decreased after LiNO 3 treatment and remained constant after CTAB treatment. Reduction in the crystallite size indicates that the lattice structure of muscovite clays becomes less rigid [24]. Therefore, a lower energy is required to modify the structure and surface properties of muscovite particles after LiNO 3 treatment.…”

Section: Intercalation Of LI + Ions Into Muscovitementioning

confidence: 99%

“…Muscovite particles were intercalated by Yu and coworkers [9] using cetyltrimethylammonium bromide (CTAB) as an organic surfactant via a hydrothermal reaction at 200 • C which resulted in an increment of muscovite interlayers spacing up to 27.4 Å. In a recent paper, Che Ismail et al [24] reported the structural changes of intercalated organomuscovite clay prepared using different concentrations of the surfactant.…”

Section: Introductionmentioning

confidence: 99%

“…Although various studies have been carried out on the preparation of organo-muscovite with different amines, yet there is a lack of information available on the effect of the hydrothermal reaction time and the CTAB to Li-muscovite concentration ratio prepared at low temperature, 180 • C. Hence, this study was conducted with the aim of altering the hydrophilic nature of muscovite particles into organomuscovite via the two-step intercalation method using LiNO 3 treatment and CTAB as the organic surfactant at 180 • C hydrothermal reaction. LiNO 3 treatment was chosen since the solution does not alter the structural and chemical compositions of muscovite [8,24], whereas alkylammonium cations are well known to be easily adsorbed on muscovite crystals forming stable molecules with different arrangements [9]. The chemical, morphological and structural changes of the intercalated muscovite clay were investigated.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced intercalation of organo-muscovite prepared via hydrothermal reaction at low temperature

et al. 2019

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Muscovite clay is an ideal reinforcing filler due to its high-aspect ratio. However, it does not swell in water, making it hard to be treated and intercalated. In this study, ion exchange treatment is carried out on muscovite clay using cetyltrimethylammonium bromide (CTAB) cations via two-step intercalation method. The intercalation steps included: inorganic-inorganic ion exchange treatment and inorganic-organic ion exchange treatment under hydrothermal conditions. The intercalation of muscovite particles was examined with various techniques to analyse the physical and chemical changes. Furthermore, the hydrothermal conditions for effective CTA + ion intercalation within muscovite interlayers prepared via the hydrothermal process at low temperature, 180 • C, under different hydrothermal reaction times and CTAB/Li-Mus mass ratio were investigated. Fourier transform infra-red (FTIR) analysis revealed that the CTA + ions are diffused into the interlayers of aluminosilicate and formed a strong electrostatic bond with the clay surface. X-ray powder diffraction analysis showed that the interplanar spacing in the organo-muscovite samples is almost identical as the hydrothermal reaction time is prolonged beyond 12 h. An optimum limit of the CTAB to Li-Mus ratio is observed as the d 002 plane spacing is increased with an increase of the mass ratio of CTAB to Li-Mus up to 1.0 C and decreased with a further increase in the mass ratio. In addition, the intercalated CTA + chains are homogenously distributed and formed a paraffin-like arrangement in the muscovite clay. Besides, the structure of aluminosilicate layers is not affected or damaged after both treatments according to FTIR analysis.

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Section: Intercalation Of LI + Ions Into Muscovitesupporting

confidence: 91%

Section: Intercalation Of LI + Ions Into Muscovitementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced intercalation of organo-muscovite prepared via hydrothermal reaction at low temperature

et al. 2019

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“…The first stage involved a treatment that was performed with molten LiNO 3 to obtain partially delaminated muscovite through the exchange of nonhydrated potassium interlayer cations with more hydrated lithium ions. As reported in a previous article, the product from the first stage was subsequently intercalated with CTAB (C16 for the purpose of preparing an organically modified muscovite through ion exchange). In brief, the product from the first stage, known as Li–muscovite, was subjected to a hydrothermal reactor, which was heated at 200°C for 12 h. Next, all of the surfactant–muscovite was filtered and subsequently washed with EtOH and dried in a vacuum oven at room temperature.…”

Section: Methodsmentioning

confidence: 99%

Effects of organomodified muscovite on the properties of acrylonitrile–butadiene–styrene nanocomposites

Ismail

Hazizan

2018

J of Applied Polymer Sci

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In this research, we investigated the mechanical and thermal properties of acrylonitrile–butadiene–styrene (ABS)–clay nanocomposites and correlated them with morphological characterizations. We prepared nanocomposites of ABS–clay by melt compounding in a Haake internal mixer. In this study, we investigated the influence of the ion‐exchange process and clay loading on the nanocomposite structure and characterized the nanocomposites with wide‐angle X‐ray diffraction (WAXD), transmission electron microscopy (TEM), contact angle measurement, field emission scanning electron microscopy (FESEM), tensile properties, hardness testing, and thermogravimetric analysis. The ABS–organomuscovite nanocomposites in this study displayed a higher tensile strength than ABS–muscovite. The modified muscovite indicated a 13% modulus elasticity in the ABS nanocomposites, whereas the elongation at break was detrimentally affected compared to that of the neat ABS. The WAXD and TEM results show the presence of mixed intercalated and exfoliated structures. FESEM analysis further revealed a good dispersion and interfacial adhesion of clay layers after subsequent modification. The contact angle measurements showed that the incorporation of organoclay was able to improve the hydrophobicity of the ABS nanocomposites. Finally, the hardness and thermal stability of the nanocomposites improved with the incorporation of modified muscovite. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46827.

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ABS/Nonexpandable muscovite clay nanocomposites: The effect of ion exchange on dispersion of nanofillers and flexural properties

Ismail

Hazizan

2019

Polymer Composites

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In this work, acrylonitrile‐butadiene‐styrene (ABS)‐based nanocomposites with different muscovite concentrations (1–5 wt%) treated by ion exchange process were prepared by melt compounding. The influence of ion exchange and muscovite amount on the morphological, structural, and flexural properties was examined using wide‐angle X‐ray diffraction (WAXD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR), and three‐point bending test. The modified muscovite significantly enhanced basal spacing and CTA+ molecules successfully intercalated into the gallery of muscovite. The morphology indicated that organomuscovite (OM) dispersed well in ABS resin and the intercalated‐exfoliated structures of ABS nanocomposites were, respectively, formed. Conversely, contact angle measurements revealed that increasing OM loading would increase the hydrophobicity of ABS nanocomposites. The flexural properties showed that the flexural strength and modulus were improved by 10% and 28%, respectively, in comparison to neat ABS. POLYM. COMPOS., 40:3562–3572, 2019. © 2019 Society of Plastics Engineers

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Effects of cetyltrimethylammonium bromide (CTAB) on the structural characteristic of non-expandable muscovite

Cited by 20 publications

References 32 publications

Enhanced intercalation of organo-muscovite prepared via hydrothermal reaction at low temperature

Enhanced intercalation of organo-muscovite prepared via hydrothermal reaction at low temperature

Effects of organomodified muscovite on the properties of acrylonitrile–butadiene–styrene nanocomposites

ABS/Nonexpandable muscovite clay nanocomposites: The effect of ion exchange on dispersion of nanofillers and flexural properties

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