Layered Silicate Reinforced Polymer Nanocomposites: Development and Applications

Goettler, Lloyd A.; Lee, K. Y.; Thakkar, H.

doi:10.1080/15583720701271328

Cited by 135 publications

(71 citation statements)

References 17 publications

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“…Of all types of fillers, silicate layers have shown the greatest reinforcing effect for many polymers, and attracted the most extensive research and development due to the fillers' high specific surface area, functionality and cost-effective fabrication [3,4,28]. However, silicate layers cannot toughen epoxy effectively and this is probably caused by its silicon-based composition and the low surface grafting density.…”

Section: Mechanical Properties and Fracture Toughnessmentioning

confidence: 99%

Epoxy/graphene platelets nanocomposites with two levels of interface strength

Zaman

Phan

Kuan

et al. 2011

Polymer

495

258

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Section: Mechanical Properties and Fracture Toughnessmentioning

confidence: 99%

Epoxy/graphene platelets nanocomposites with two levels of interface strength

Zaman

Phan

Kuan

et al. 2011

Polymer

495

258

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“…The pressure also causes a decrease of the interspacing of the gallery and an increase of the coherent length of the silicate crystallites [30] . The mixing procedure affects the mechanical properties and intercalation degree of thermoplastic -based clay [1,[38][39][40][41] but few papers have been devoted to this issue using rubber materials. Karger-Kocsis and Wu [3] claimed that the shear rate and mastication temperature improves the mechanical properties of the organoclay reinforced rubber.…”

Section: Introductionmentioning

confidence: 99%

“…These outstanding properties are devoted to the very high surface area, high aspect ratio and high cation exchange capacity mainly when these layered silicates belong to smectite group of clays (eg. montmorillonite, bentonite, hectorite, etc) [1] . The last characteristic is of paramount importance for the development of well dispersed polymer-clay nanocomposites since the cations naturally present in the interlayers of these silicates are easily replaced by alkylammonium cations with long aliphatic hydrocarbon chain, thus enhancing the compatibility between the organophilic clay and the polymer matrix [2] .…”

Section: Introductionmentioning

confidence: 99%

Nitrile rubber - based nanocomposites prepared by melt mixing: effect of the mixing parameters on mechanical, dynamic-mechanical and creep behavior

2010

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Nanocomposites constituted by nitrile rubber matrix and Cloisite 15A (OC15A) as the organoclay were prepared by melt blending and cured with the m-phenylene-bis-maleimide (BMI)/dicumyl peroxide (DCP) system. The effect of mixing parameters on the clay dispersion was evaluated, including mixing temperature and time, and rotor speed of the internal mixer. The organoclay effectively accelerated the vulcanization reaction of NBR, which was attributed to the presence of the alkylammonium salt as the intercalant. All nanocomposites displayed improved tensile properties indicating a good reinforcing action of the clay. Also, the creep compliance was substantially reduced with the incorporation of the clay. X-ray diffraction studies showed the presence of intercalated and deintercalated clay population. The mixing parameters did not have an important effect on clay dispersion and properties of NBR-clay nanocomposites, except for the creep behavior.

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“…From this point of view, special attention of investigators has been attracted lately by polymer-clay systems on the basis of ionogenic and nonionogenic polymers and layers silicates, in particular, bentonite clays with high content of mineral -montmorillonite [3,4]. Compositions on the basis of silicates realize some positive properties of composition components.…”

Section: Introductionmentioning

confidence: 99%

Structure and swelling of polymer-clay composites

Iminova¹,

Zhumagalieva²,

Beisebekov³

et al. 2016

Eur Chem Tech J

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Composition gels on the basis of bentonite clay of Manrak deposit (East-Kazakhstan region) and nonionogenic polymers -poly-2-hydroxyethyl-acrylate and polyacrylamide were synthesized by radical intercalative polymerization in situ with various content o f cross-linking agent N,N-methylene-bisacrylamide and with time of intercalation about 8 hours. The morphological structure, the nature of interaction of components and the swelling ability of composition gels were studied by scanner electron microscopy, equilibrium swelling and IR-spectroscopy methods. By studying of morphological structure it was determined, that the polymer-clay composition gels, synthesized by intercalative polymerization, are most homogenous and interconsistency in case of "acrylamide-clay" composition in contrast with "2-hydroxyethylacrylate -clay" composition. For "acrylamide-clay" gels the swelling degree of gels was stated to decrease with the increase in the content of cross-linking agent and ionic strength, but "2-hydroxyethylacrylate -clay" compositions have the extremely character of swelling, where maximum degree of swelling account for gel with content of cross-linking agent 1*10 -2 М. Interaction of composition components was realized on account of hydrogen bonds with formation of chemically cross-linked complex polymer-clay. Decrease of swelling degree of compositions in physiological solution points to acquisition of polyelectrolyte nature of composition gels on account of combination of nonionogenic macromolecules of polymers with negatively charged particles of bentonite clay. For intercalated samples of polymer-clay compositions, the degree of swelling at all degrees of cross-linking is between those for pure polymers and pure clay, that in turn, agrees with the conclusion on the great composition homogeneity of samples with preliminary intercalation. As of results of holding investigation fit is safe to say, that obtained polymer-clay composition gels are potential sorbents and prolongated carriers of medicines.

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Layered Silicate Reinforced Polymer Nanocomposites: Development and Applications

Cited by 135 publications

References 17 publications

Epoxy/graphene platelets nanocomposites with two levels of interface strength

Epoxy/graphene platelets nanocomposites with two levels of interface strength

Nitrile rubber - based nanocomposites prepared by melt mixing: effect of the mixing parameters on mechanical, dynamic-mechanical and creep behavior

Structure and swelling of polymer-clay composites

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