Influence of Accelerated Electron-Irradiation on Sorption Properties of Latvian Darkhead Sheep Wool Fibers

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science Pub Date : 2023-12-07 DOI:10.5755/j02.ms.34843

L. Avotina, A. Zarins, Nadina Tina Vanaga, A. Petjukevičs, M. Rzepna, Antons Podjava, Vilnis Peipins, G. Kizane

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Abstract

Latvian Darkhead (LD) is a local sheep breed and a genetic resource in Latvia. Preservation and development of the sheep population in the local region is important for the recultivation of fields, it serves as a source for export and local use, as well as waste wool can be applied for developing new products, for example, sorbents for volatile organic pollutants. Therefore, investigation of the sorption properties of the LD sheep wool fibers is under interest. In addition, modification options of the wool for improvement of properties are viewed. Therefore, in the present work, sheep wool fibers as well as accelerated electron-irradiated fibers are analyzed and compared. Fourier transform infrared (FTIR) spectrometry is applied to develop the sorption testing system of volatile organic compounds. An analytical system consisting of a volatile organic compound source, sheep wool filter, and FTIR spectrometry cell is tested and applied for analysis of wool sorption properties for acetone molecules. Registration of the FTIR spectra was performed within the range of 600-4000 cm-1, in the nitrogen flow of about 150mL/min. FTIR analysis shows, that the accelerated electron irradiated sheep wool fibers absorb acetone of about 33% more than non-irradiated fibers. The obtained results will be used for developing recommendations for filter producers to fabricate filter components containing LD sheep wool fibers.

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加速电子辐照对拉脱维亚黑头绵羊毛纤维吸附特性的影响

拉脱维亚黑头羊(LD)是拉脱维亚当地的绵羊品种和遗传资源。保护和发展当地绵羊种群对农田的再耕作很重要，它可以作为出口和当地使用的来源，并且废羊毛可以用于开发新产品，例如挥发性有机污染物的吸附剂。因此，对LD羊毛纤维的吸附性能进行了研究。此外，还探讨了改善羊毛性能的各种改性方法。因此，本文对羊毛纤维和加速电子辐照纤维进行了分析和比较。应用傅里叶变换红外光谱法(FTIR)建立了挥发性有机化合物的吸附测试系统。采用挥发性有机化合物源、羊毛过滤器和FTIR光谱分析仪组成的分析系统，对羊毛对丙酮分子的吸附特性进行了测试和应用。FTIR光谱在600 ~ 4000 cm-1范围内进行配准，氮气流量约150mL/min。FTIR分析表明，经加速电子辐照的羊毛纤维比未辐照的纤维对丙酮的吸收多33%左右。所获得的结果将用于为过滤器生产商制定建议，以制造含有LD羊毛纤维的过滤器组件。

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来源期刊

Materials Science 工程技术-材料科学：综合

CiteScore

1.60

自引率

44.40%

发文量

审稿时长

4-8 weeks

期刊介绍： Materials Science reports on current research into such problems as cracking, fatigue and fracture, especially in active environments as well as corrosion and anticorrosion protection of structural metallic and polymer materials, and the development of new materials.