Cellulose-Based Polymer Composite with Carbon Black for Tetrahydrofuran Sensing

This work focused on studying the sensing efficiency of tetrahydrofuran (THF) by composite films made of thin layers of a cellulose-based polymer and carbon black. We analyze the reproducibility, durability, desorption time, and the sensitivity percent as a function of the amount of solvent. Two typ...

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Bibliographic Details
Published in:International journal of polymer science 2013-01, Vol.2013 (2013), p.1-7
Main Authors: Hernández-López, Susana, Vigueras Santiago, Enrique, Mendoza Mora, Miriam, Farias Mancilla, José Rurik, Zaragoza Contreras, Erasto Armando
Format: Article
Language:English
Subjects:
Carbon black
Desorption
Detection
Durability
Reproducibility
Solvents
Tetrahydrofuran
Thin films
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Summary:This work focused on studying the sensing efficiency of tetrahydrofuran (THF) by composite films made of thin layers of a cellulose-based polymer and carbon black. We analyze the reproducibility, durability, desorption time, and the sensitivity percent as a function of the amount of solvent. Two types of experiments were conducted, (1) progressive sensing test (PST) which consisted of progressively increasing the amount of solvent from 0.1 mL increments up to 1.0 mL and (2) multiple sensing test (MST) where the layers were subjected to consecutive pulses of the same amount of solvent, with a minimum of 0.1 mL and a maximum of 0.4 mL. The response and desorption times were a few seconds, and the sensitivity percent ranged from 1% to 170% and was dependent on the solvent quantity.
ISSN:1687-9422
1687-9430
DOI:10.1155/2013/381653