Extraction and Performance Characterization of the Carexmeyeriana Fiber

ABSTRACT

In this investigation, Carexmeyeriana fiber (CMF) was extracted by using the ultrasound alkali--oxygen technology in the research, and the performance characterization of CMF was revealed. Parameters such as ultrasonic and alkali--oxygen acting times, and the concentrations of NaOH and H₂O₂ were optimized by using the multi-target orthogonal method. The performance characteristics of CMF were investigated by means of scanning electron microscopy, ultraviolet, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction and other basic testing methods. The result revealed that the optimal parameters in the extraction process were ultrasonic irradiating for 70 min, soaking in the alkali--oxygen bath for 100 min, and the concentrations of NaOH as 8 g/L and H₂O₂ as 12 g/L. After extraction, the characteristic absorb peaks for the non-cellulose of CMF in the FTIR spectra decreased significantly, and the crystallinity increased from 46.5 to 50.6%. Warmth retention and excellent antibacterial properties of the extracted CMF were observed. It was expected that CMF can be developed as a functional fiber in the future.

摘要

本研究用超声波碱氧技术提取乌拉草纤维 (CMF), 以揭示CMF的性能表征。参数（如超声和碱氧作用时间、NaOH和H2O2浓度）通过使用多目标正交方法优化。在研究中，通过扫描电子显微镜、紫外线装置、傅立叶变换红外光谱 (FTIR)、X射线衍射等基本测试方法对CMF的性能特性进行调查。结果表明，提取过程中的最佳参数是超声波照射70分钟、氧碱浴浸泡100分钟、NaOH浓度为8 克/升、H2O2浓度为12克/升。提取后，CMF的非纤维素特性吸收峰在FTIR光谱中显著降低，结晶度从46.5％增加至50.6％。另外还观察到所提取的CMF具有出色的保暖性和抗菌性能。预计CMF可在将来用于开发功能性纤维。

KEYWORDS:

• Antibacterial property
• carexmeyeriana
• fiber extraction
• FTIR
• warmth retention
• XRD

关键词:

• 抗菌性
• 乌拉草
• 纤维提取
• 保暖性

Additional information

Funding

This work was supported by the National Natural Science Foundation of China under Grants 51206122 and 51303131.