Boron(III)-Containing Composite Hydrated Cellulose Fibers As Precursors of Carbon Materials

IF 1 4区化学 Q4 POLYMER SCIENCE

Polymer Science, Series B Pub Date : 2023-11-30 DOI:10.1134/S1560090423701257

Yu. A. Egorov, G. N. Bondarenko, M. I. Vinogradov, V. G. Kulichikhin

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Abstract

Composite fibers containing boron(III) have been obtained based on solid solutions of cellulose in N-methylmorpholine-N-oxide and orthoboric acid with their subsequent transformation into a viscous-flow state. The rheological behavior of cellulose solutions with different content of orthoboric acid and water studied under conditions of continuous and dynamic shear loading has confirmed the intermolecular interaction between the components. It has been shown that the mechanical characteristics of the composite fibers obtained from a 16% solution in N-methylmorpholine-N-oxide are comparable to these for hydrated cellulose fibers. The process of transformation of the composite fibers of various compositions into carbon fiber has been investigated by means of thermogravimetric analysis and differential scanning calorimetry. Chemical, structural and morphological properties of composite hydrated cellulose fibers and carbon fibers obtained from them have been studied using FTIR-spectroscopy, X-ray diffraction, and scanning electron microscopy. The influence of boron(III) compounds on the carbonization process and the formation of graphite-like structures in carbon fiber has been investigated by Raman-spectroscopy.

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含硼(III)复合水合纤维素纤维作为碳材料的前体

摘要以纤维素为固溶体，在n -甲基- n -氧化物和正硼酸中转化为粘流状态，制备了含硼(III)复合纤维。研究了不同含量的正硼酸和水对纤维素溶液在连续和动态剪切载荷下的流变行为，证实了组分之间的分子间相互作用。研究表明，在16%的n -甲基morpholine- n -oxide溶液中获得的复合纤维的力学特性与水合纤维素纤维的力学特性相当。采用热重分析和差示扫描量热法研究了不同成分的复合纤维向碳纤维转化的过程。利用傅里叶红外光谱、x射线衍射和扫描电镜研究了复合水合纤维素纤维和碳纤维的化学、结构和形态特性。采用拉曼光谱法研究了硼(III)化合物对碳纤维炭化过程和类石墨结构形成的影响。

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来源期刊

Polymer Science, Series B 化学-高分子科学

CiteScore

1.80

自引率

8.30%

发文量

审稿时长

>0 weeks

期刊介绍： Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed