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首页> 外文期刊>Journal of natural fibers >Microstructure, Thermal Analysis and Acoustic Characteristics of Calotropis procera (Apple of Sodom) Fibers
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Microstructure, Thermal Analysis and Acoustic Characteristics of Calotropis procera (Apple of Sodom) Fibers

机译：Calotropis procera（Sodom苹果）纤维的微观结构，热分析和声学特性

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摘要

In order to characterize the Calotropis procera (Sodom Apple) fibers six experimental tests and analyses are made. Such tests are Scanning Electron Microscopy (SEM) analysis of the fiber diameter, Energy Dispersive X-ray (EDX) spectroscopy analysis, Fourier Transformation-Infra Red (FT-IR) analysis, Thermogravimetric Analysis (TGA and DTGA), Differential Scanning Calorimetry (DSC), and sound absorption for three specimens with different densities. Test results showed that the fibers are very smooth and have a diameter range 5-21 mu m in its crude state. The major constituent of the fiber is obtained as Carbon, Oxygen and Hydrogen since the fiber is organic in nature with a huge stretching at 3347 cm(-1) which is due to the -OH group. The degradation and decomposition of the fiber starts at about 222 degrees C and ends at about 382 degrees C with melting point at about 313 degrees C. High density sample of the fibers showed a good behavior of absorbing the sound especially at high frequency. Using such natural fiber in sound absorption with cornstarch as a binder has the advantages of not being hazardous to human beings and of a low environment impact.
机译：为了表征proco procera（Sodom Apple）纤维，进行了六项实验测试和分析。这些测试包括纤维直径的扫描电子显微镜（SEM）分析，能量色散X射线（EDX）光谱分析，傅立叶变换红外（FT-IR）分析，热重分析（TGA和DTGA），差示扫描量热法（ DSC），以及三个密度不同的样品的吸声性能。测试结果表明，纤维非常光滑，粗态直径范围为5-21微米。纤维的主要成分是碳，氧和氢，因为该纤维本质上是有机的，由于-OH基团，在3347 cm（-1）处有很大的拉伸。纤维的降解和分解始于约222摄氏度，终止于约382摄氏度，熔点约为313摄氏度。纤维的高密度样品表现出良好的吸收声音的性能，尤其是在高频下。将这种天然纤维与玉米淀粉作为粘合剂在吸声中使用具有不危害人类和对环境影响小的优点。

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