کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1468071 | 990129 | 2006 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Tensile mechanical properties, morphological aspects and chemical characterization of piassava (Attalea funifera) fibers Tensile mechanical properties, morphological aspects and chemical characterization of piassava (Attalea funifera) fibers](/preview/png/1468071.png)
The tensile mechanical properties of piassava fibers, as well as their chemical composition and morphological aspects, are reported. The values obtained showed that piassava has a mechanical behavior and chemical composition comparable to that of coir fibers. The difficulties related with a reliable way of measuring the true elastic modulus of these slender fibers are discussed and a simple correction of the experimental data is presented. As main characteristic surface features piassava fibers present a well arranged pattern of silicon rich star-like protrusions. Its chemical composition reveals that piassava are lignin rich fibers, 48.4 wt%. X-ray diffraction showed that cellulose I is their main crystalline constituent. Their thermal degradation begins at 225 °C, and the whole thermal degradation behavior of piassava fibers has many aspects, like the initial water loss and the content of residues, close to that shown by pure lignin.
Journal: Composites Part A: Applied Science and Manufacturing - Volume 37, Issue 9, September 2006, Pages 1473–1479