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Morfología y cristalinidad de películas de gelatina y ácido tánico con nanoarcillas

Authors: J. Solorza Feria; D. Rodrigue; I. G. Ruiz Martínez;

Morfología y cristalinidad de películas de gelatina y ácido tánico con nanoarcillas

Abstract

Se elaboraron películas mediante extrusión con nueve formulaciones conteniendo todas gelatina, agua y glicerol. Tres películas contenían además ácido tánico y montmorillonita (nanoarcilla), otras tres películas controles sin ácido tánico ni nanoarcilla.Otras tres solo contenían ácido tánico. La morfología se caracterizó por microscopía electrónica de barrido y la cristalinidad por difracción de rayos X. El efecto nucleante o formación de celdas o poros causado por la adición de nanoarcillas, condujo a películas que tenian un mayor número de celdas más pequeñas pero con mayor densidad de poros y densidad de nucleación que las películas control y las que solo contenian ácido tánico. Las películas mostraron un pico a 2𝜃 = 8 °. Este pico relacionado con el diámetro de triple hélice de la gelatina y su intensidad asociado con el contenido de la triple hélice en las películas. Las nanoarcillas cambiaron la estructura por variación del patrón de difracción de las películas en mayor medida que el ácido tánico.

Keywords

caracterización, gelatina, extrusión, películas

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This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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