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首页> 外文期刊>Journal of Applied Polymer Science >Effect of Steam Explosion on Degumming Efficiency and Physicochemical Characteristics of Banana Fiber
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Effect of Steam Explosion on Degumming Efficiency and Physicochemical Characteristics of Banana Fiber

机译：蒸汽爆炸对香蕉纤维脱胶效率和理化特性的影响

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摘要

A steam explosion degumming method coupled with the 16 (44) orthogonal array design was used to investigate the efficient retting of fibers. Four parameters were examined to determine the residual gum and lignin content of retted fibers, and the optimum extraction conditions were determined to be the following: banana fiber moisture content of 10%, 1.2% NaOH, steam pressure of 1.75 MPa, and residence time of 90 s. Under optimized conditions, the experimental yield of residual gum (5.4760.22%) and lignin (3.7860.12%) agreed closely with the predicted yield. The chemical composition of the fibers was analyzed, and the retted fibers exhibited an increase in the cellulose content and a decrease in the lignin and hemicellulose contents. This result was further confirmed by XRD and Fourier transform infrared spectroscopy. The scanning electron microscopy analysis of the treated fibers showed a change in their surface morphology compared with that of the raw fibers. Their thermal characterization showed an enhanced thermal stability of the retted fibers compared to the raw fibers.
机译：蒸汽爆炸脱胶方法结合16（44）正交阵列设计用于研究纤维的有效脱胶。检查了四个参数以确定残留纤维的残留胶和木质素含量，确定最佳提取条件为：香蕉纤维含水量为10％，NaOH为1.2％，蒸汽压力为1.75 MPa，停留时间为90秒在优化条件下，残留口香糖（5.4760.22％）和木质素（3.7860.12％）的实验产率与预测产率密切相关。分析了纤维的化学组成，并且退色的纤维表现出纤维素含量的增加以及木质素和半纤维素含量的减少。 XRD和傅里叶变换红外光谱进一步证实了这一结果。经处理的纤维的扫描电子显微镜分析表明，与原始纤维相比，其表面形态发生了变化。与原始纤维相比，它们的热特性显示了ret解纤维的增强的热稳定性。

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