Novel intercalation mechanism of cationic surfactants modified muscovite

Ismail, Nor Hafizah Che; Hashim, Faiezah; Akil, Hazizan Md; Salim, Zainathul Akhmar Salim Abdul

doi:10.1016/j.matpr.2022.08.114

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…Despite the processing and removal of most impurities, a small amount was trapped in the lamellae and released during the delamination process 10 . X-ray diffraction analysis of muscovite before and after ultrasound treatment showed the same profile of the three samples, as reported by other authors 8,18 who also stated that ultrasonic treatment for short periods does not usually cause structural alteration in minerals. Figure 4 illustrates the XRD pattern for the mica125US30 sample, which exhibits the typical profile of muscovite 18 .…”

Section: Muscovite Samples Characterizationsupporting

confidence: 87%

“…The OH stretching vibrations, occurred between the 3750-3550 cm -1 region. The vibrations of the mica group minerals can be observed in the 1200-700 cm -1 region (Si-O stretching) as pointed by Ismail et al 18 , Almeida et al 7 and Gerardo et al 4 . Vibrations of the interlayer cations usually are located in the range of 400-50 cm -1 , so it is not possible to see them in our spectra.…”

Section: Muscovite Samples Characterizationmentioning

confidence: 74%

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Composites Based on Post-Industrial Wood Plastic Waste and Ultrasonic Treated Muscovite

Bastos,

Dias,

França

et al. 2023

Mat. Res.

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In this work muscovite was ultrasonically treated to obtain composites with post-industrial wood plastic residues. The muscovite was ultrasonicated for 30 or 60 min and mixed with the polymeric matrix at a constant level of 15% (weight percentage). The composites were prepared in a single-screw extruder and formed into flat films for characterization. SEM images of the ultrasonicated muscovite revealed the occurrence of delamination, while the particle size distribution results suggested a decrease in size with longer sonication time. FTIR spectra also indicated the occurrence of delamination of the material. The composites exhibited a slight increase in density and a large increase in impact resistance of the samples with ultrasonicated muscovite. The XRD of the composites suggested the occurrence of alignment of the mineral in the matrix. The results indicate that ultrasonication is an effective method to improve the interaction and dispersion of muscovite with wood plastic waste to obtain composites.

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Section: Muscovite Samples Characterizationsupporting

confidence: 87%

Section: Muscovite Samples Characterizationmentioning

confidence: 74%

Composites Based on Post-Industrial Wood Plastic Waste and Ultrasonic Treated Muscovite

Bastos,

Dias,

França

et al. 2023

Mat. Res.

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Efeito Do Tratamento Ultrassônico Em Mica Muscovita

Souza,

Fernandes,

Libano

et al. 2024

Rev. Contemp.

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Minerais argilosos de estrutura lamelar, como as micas, são conhecidos por sua ampla aplicação na obtenção de compósitos com polímeros. Usualmente estes minerais necessitam ser tratados quimicamente para melhorar a adesão com a matriz polimérica. Entretanto, estes tipos de minerais possuem em suas lamelas cátions de compensação (Na+, K+, etc) e hidroxilas (OH-) que quando expostos por meio de um processo delaminação podem atuar na melhoraria da adesão com matrizes orgânicas. Neste contexto, no presente trabalho mica do tipo muscovita foi tratada ultrassonicamente (40 kHz e 500W) por 60 e 120 minutos. A distribuição de tamanho de partícula e o MEV obtidos para as micas ultrassonicadas revelaram aumento da delaminação e diminuição do tamanho de partícula com aumento do tempo de tratamento. A análise por FTIR confirmou a ocorrência de delaminação e o DRX revelou a manutenção da estrutura cristalina do material com o tratamento por até 120 minutos.

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Novel intercalation mechanism of cationic surfactants modified muscovite

Cited by 2 publications

References 12 publications

Composites Based on Post-Industrial Wood Plastic Waste and Ultrasonic Treated Muscovite

Composites Based on Post-Industrial Wood Plastic Waste and Ultrasonic Treated Muscovite

Efeito Do Tratamento Ultrassônico Em Mica Muscovita

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