Polymethylmethacrylate–montmorillonite composites: preparation, characterization and properties

Salahuddin, Nehal; Shehata, Mohamed

doi:10.1016/s0032-3861(01)00253-1

Cited by 82 publications

(61 citation statements)

References 13 publications

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“…This suggests that the stacking of the silicate layers become disordered. In one earlier work [35], the same results obtained for polymethyl methacrylate-MMT composites. On the contrary, it is interesting to find that at constant ratio of organoclay, the peak characteristic to 0 0 1 plane in II f,g is shifted to higher d-spacing = 19.64Å.…”

Section: Resultssupporting

confidence: 65%

Nanocomposite materials based on polyurethane intercalated into montmorillonite clay

Rehab

Salahuddin

2005

Materials Science and Engineering: A

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154

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Section: Resultssupporting

confidence: 65%

Nanocomposite materials based on polyurethane intercalated into montmorillonite clay

Rehab

Salahuddin

2005

Materials Science and Engineering: A

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154

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“…Although SEM has been less widely applied to study the structure of nanocomposites, several attempts have been made to use this technique for polymer/clay nanocomposites 30, 31. SEM pictures taken from the organoclay powder used are presented in Fig 6.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of ethylene propylene diene monomer rubber/organoclay nanocomposites resulting from different processing conditions and formulations

Gatos

Thomann

Karger‐Kocsis

2004

Polymer International

106

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Several parameters which affect the nanocomposite formation in a sulfur‐cured ethylene propylene diene rubber (EPDM) containing 10 phr organoclay (montmorillonite modified with octadecylamine; MMT–ODA), were investigated. The parameters varied were linked to processing (mixer type, temperature) and rubber recipe (compatibilizer, accelerator). Increasing temperature and high shear mixing (internal mixer instead of open mill) improved the mechanical performance of the rubber nanocomposites. A more pronounced effect was achieved by using polar EPDM rubbers (maleic anhydride and glycidyl methacrylate grafted version) as compatibilizer. Among the accelerators, zinc diethyldithiocarbamate proved to be most suitable. The microstructure of the rubber/organoclay systems was studied by X‐ray diffraction, transmission electron microscopy and scanning electron microscopy. Organoclay intercalation/exfoliation was accompanied by its more or less severe confinement (reaggregation, deintercalation). This was traced to a partial or full removal of the ODA intercalant from the clay galleries via the formation of a zinc complex in which amine groups of the ODA and sulfur participated. Copyright © 2004 Society of Chemical Industry

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“…antiballistic use 3 to anticorrosion 4 and dental purposes. 5 Many previous works reported in the literature were made on PMMA/organoclay, using the three principal preparation techniques: melt intercalation, 6 7 solvent intercalation 8 and in situ polymerization. 9 In these works, it is reported that the addition of the organoclay up to 1 wt% leads to an increase in Young's modulus, glass transition temperature and the tensile yield stress.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Stiffness and Yield Behaviour of Melt-Intercalated Poly(methyl methacrylate)/Organoclay Nanocomposites: Characterisation and Modelling

Matadi¹,

Gueguen²,

Ahzi³

et al. 2010

J. Nanosci. Nanotech.

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The elastic modulus and yield stress behaviour of a melt intercalated Poly(methylmethacrylate)/ organoclay (PMMA/C30B and PMMA/C20A) were studied using uniaxial tensile tests at different temperatures and different strain rate. The stress-strain response was obtained for different loading rates and different test temperature. Both the stiffness and the yield stress were then clearly identified as function of strain rate and temperature. Our experimental results show that the yield stress and modulus of both PMMA/C20A and PMMA/C30B organoclay nanocomposites are very sensitive to clay concentration, strain rate and temperature. A micromechanically-based composite approach was used to predict the yield stress of both PMMA/C20A and PMMA/C30B organoclay nanocomposites. The results obtained from the model are in good agreement with our experimental results. As expected, the activation enthalpy of cooperative model increased slightly while the activation volume decreases slightly with the clay concentration.

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Polymethylmethacrylate–montmorillonite composites: preparation, characterization and properties

Cited by 82 publications

References 13 publications

Nanocomposite materials based on polyurethane intercalated into montmorillonite clay

Nanocomposite materials based on polyurethane intercalated into montmorillonite clay

Characteristics of ethylene propylene diene monomer rubber/organoclay nanocomposites resulting from different processing conditions and formulations

Investigation of the Stiffness and Yield Behaviour of Melt-Intercalated Poly(methyl methacrylate)/Organoclay Nanocomposites: Characterisation and Modelling

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