Caracterización física con difractogramas e hinchamiento de bentonitas organofílicas para adicionar a materiales compuestos poliméricos//Physical characterization with difractograms and swelling of organophilic bentonites to add to polymer composites

Authors

  • Francisco Jesús Mondelo‐García Instituto Superior Politécnico José Antonio Echeverría, Facultad de Ingeniería Mecánica, La Habana
  • Francisco Jesús‐Almeida Universidad Presbiteriana Mackenzie de Sao Paulo. UPMSP. Sao Paulo
  • Flavio Manuel‐Sousa Universidad de Sao Paulo. USP. Facultad de Geociencias. Sao Paulo
  • José Luís Valín‐Rivera Universidad de Sao Pablo. USP. Sao Paulo
  • María Grasa da‐Silva‐Valenzuela Universidad de Sao Pablo. USP. Sao Paulo
  • Francisco Rolando Valenzuela‐Díaz Universidad de Sao Pablo. USP. Sao Paulo

Abstract

Las bentonitas con partículas de microestructura combinada por placas de tetraedros y octaedros silicio-aluminosos, contienen cavidades interlaminares entre ellas, confiriéndoles cualidades positivas para usarse en tintas, medicamentos, fluidos de perforación, retener desechos contaminantes residuales y como refuerzos de polímeros. Se logró el objetivo de hidratar y modificar orgánicamente
con sal cuaternaria orgánica del tipo cloruro hexadecil trimetil amonio y sal de sodio a bentonitas sódicas del Nordeste brasileño y la Patagonia argentina, policatiónicas brasileñas, cálcica activada y zeolita ambas cubanas, estableciendo una caracterización entre muestras no tratadas y organofilizadas. Estos materiales se evaluaron comparativamente por difracción de rayos X e
hinchamiento Foster en diluyentes orgánicos. Los resultados confirmaron una variación significativa fisicoquímica y microestructural en los difractogramas de las bentonitas organofílicas, mientras las partículas micrométricas tomaron dimensiones nanométricas, se incrementó mucho más el hinchamiento en estas, mejorando su efectividad de empleo, al emplearlas como refuerzo,
adicionado a una matriz polimérica.

Palabras claves: bentonita, organofílica, zeolita, hinchamiento Foster, matriz polimérica.
______________________________________________________________________________

Abstract

The bentonites with microstructure particles combined by plates tetrahedral and octahedral siliconaluminous contain interlaminares cavities including, conferring positive qualities for use in inks, medicines, drilling fluids; retain polluting waste residuals and as polymer reinforcements. The objective to hydrate and organically modified with organic quaternary salt of hexadecyl trimethyl ammonium chloride type and sodium salt the sodium bentonites Northeast Brazilian and Patagonia
Argentina, Brazilian polycationics, calcium activated and zeolite both Cuban, establishing a characterization was achieved between samples untreated and organophilized. These materials are comparatively evaluated by diffraction ray X and swelling Foster in organic solvents. The results confirmed a significant variation in the physic-chemical and microstructural diffractograms organophilic bentonites, while the micron particles taken nanometric dimensions, was increased much more the swelling in these, enhancing the effectiveness of use, employing them as the reinforcement, added to a polymer matrix.

Key words: bentonite, organophilic, zeolite, Foster swelling, polymer matrix.

Downloads

How to Cite

1.
Mondelo‐García FJ, Jesús‐Almeida F, Manuel‐Sousa F, Valín‐Rivera JL, da‐Silva‐Valenzuela MG, Valenzuela‐Díaz FR. Caracterización física con difractogramas e hinchamiento de bentonitas organofílicas para adicionar a materiales compuestos poliméricos//Physical characterization with difractograms and swelling of organophilic bentonites to add to polymer composites. Ing. Mec. [Internet]. 2014 May 1 [cited 2025 Sep. 13];17(2):118-2. Available from: https://ingenieriamecanica.cujae.edu.cu/index.php/revistaim/article/view/484

Issue

Vol. 17 No. 2 (2014): mayo-agosto

Section

Original article

License

Authors who publish with this journal agree to the following terms:

a. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

b. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).

Most read articles by the same author(s)