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Ingeniería Mecánica

versión On-line ISSN 1815-5944

Resumen

MONDELO-GARCIA, Francisco-Jesús et al. Characterization of untreated zeolites and bentonites as reinforcement in polymer matrix composites. Ingeniería Mecánica [online]. 2014, vol.17, n.1, pp.57-67. ISSN 1815-5944.

Bentonites with aluminous silicon microstructure composed of plates. The work accomplished to characterize the sodium bentonites in Wyoming USA, Patagonia Argentina, Northeast Brazil and the Brazilian polycationic bentonites, calcium-activated sodium zeolite from Cuba without organic modification not organophilized to employ as reinforcing in composite materials of polymer matrix. These materials were evaluated for physical and chemical assay techniques such as X-ray fluorescence, X-ray diffraction, scanning electron microscopy, moisture, cation exchange capacity, absorption and swelling aqueous diluent. The results confirmed variables ranges of cationic exchange, swelling and water absorption from the bentonites tested, due to its chemical-structural hydration, achieving higher values nature the sodium, and then activated with calcium polycationic lower value, but permitting use as charge in polymers.

Palabras clave : bentonite; zoelite; polymer matrix; organophilized; composite materials.

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