Caracterización de bentonitas y zeolitas sin tratamiento como refuerzo en materiales compuestos de matriz polimérica//Characterization of untreated zeolites and bentonites as reinforcement in polymer matrix composites

Authors

  • Francisco Jesús Mondelo‐García Instituto Superior Politécnico José Antonio Echeverria. Facultad de Ingeniería Mecánica. La Habana.
  • Liaqat Alí‐Shah Universidad de Peshawar
  • Francisco Jesús‐Almeida Universidad Presbiteriana Mackenzie de Sao Paulo. Sao Paulo
  • José Luis Valín‐Rivera Universidad de Sao Paulo. Sao Paulo
  • María Grasa da-Silva‐Valenzuela Universidad de Sao Paulo. Sao Paulo
  • Francisco Rolando Valenzuela‐Díaz Universidad de Sao Paulo. Sao Paulo
  • Yosvani Guerra‐Silva Empresa Cubana de Aviación Civil. La Habana
  • Frank Pérez‐Rodríguez Centro de Ingeniería y Proyectos de Alta Tecnología para la Industria Biofarmacéutica. La Habana

Abstract

Las bentonitas con microestructuras compuestas de placas silicio aluminosas. Se logró el objetivo de caracterizar las bentonitas sódicas de Wyoming, USA, Patagonia de Argentina, nordeste de Brasil, así como las bentonitas policatiónicas de Brasil, la cálcica activada con sodio y zeolita de Cuba no organofilizadas para emplearlas como refuerzo en materiales compuestos de matriz polimérica. Estos
materiales se evaluaron usando técnicas físico-químicas como fluorescencia de rayos X, difracción de rayos X, microscopia electrónica de barrido, humedad, capacidad de intercambio catiónico, absorción e hinchabilidad en diluyente acuoso. Los resultados confirmaron rangos variables de intercambio catiónico,
hinchamiento y absorciòn en agua entre las bentonitas analizadas, debido a su naturaleza química estructural en hidratación, logrando mayores valores las sódicas, luego la cálcica activada y con menor valor las policatiónicas, pero permiten usarlas como carga en polímeros.

Palabras claves: bentonita, zeolita, matriz polimérica, organofilizada, materiales compuestos.
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Abstract

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.

Key words: bentonite, zoelite, polymer matrix, organophilized, composite materials.

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How to Cite

1.
Mondelo‐García FJ, Alí‐Shah L, Jesús‐Almeida F, Valín‐Rivera JL, da-Silva‐Valenzuela MG, Valenzuela‐Díaz FR, Guerra‐Silva Y, Pérez‐Rodríguez F. Caracterización de bentonitas y zeolitas sin tratamiento como refuerzo en materiales compuestos de matriz polimérica//Characterization of untreated zeolites and bentonites as reinforcement in polymer matrix composites. Ing. Mec. [Internet]. 2014 Jan. 2 [cited 2025 Sep. 13];17(1):57-6. Available from: https://ingenieriamecanica.cujae.edu.cu/index.php/revistaim/article/view/478

Issue

Vol. 17 No. 1 (2014): enero-abril

Section

Original article

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