Abstract
This work aims to elaborate PPy-flax composite via chemical in-situ polymerization of pyrrole on flax fiber in aqueous medium. The flax-PPy gas sensor was examined for trimethylamine gases. It was found that the electrical resistance of PPy coating increases in the presence of organic vapors while it decreases in clean air. The results of this study show the high efficiency of flax-PPy sensor toward toxic vapors. The influence of input parameters such as gas concentration has also been investigated. The synthesized sensor was characterized by different techniques such as X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM).
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