Cellulose nanocrystals from tucum fibers cultivated in Amazon Forest: extraction and characterization

IF 2.6 4区化学 Q3 POLYMER SCIENCE

Journal of Polymer Research Pub Date : 2024-10-28 DOI:10.1007/s10965-024-04183-1

José Carlos Vasques, Samir Leite Mathias, Lucas Repecka Alves, Wilson Alves Ribeiro Neto, Alessandra de Almeida Lucas, Aparecido Junior de Menezes

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Abstract

The extraction of cellulose nanocrystals from tucum fibers has not been previously reported in the literature. In this way, tucum fibers underwent extraction processes to obtain cellulose nanocrystals, which were then characterized using techniques such as Fourier Transformed Infrared (FTIR), Transmission Electron Microscopy (TEM), X-ray diffraction (XRD), Thermogravimetry (TG), and chemical composition analysis. The results revealed that the cellulose nanocrystals extracted from tucum fibers exhibited a fine, needle-like morphology with lengths ranging from 50 to 350 nm and diameters from 7.5 to 32.7 nm. The chemical composition analysis showed a high presence of alphacellulose in the fibers (ca. 63.38%). FTIR analysis demonstrated characteristic bands of cellulosic materials, while TG analysis indicated higher ash content and lower Tonset in the cellulose nanocrystals. XRD analysis showed increased crystallinity of the nanocrystals. The study underscores the potential applications of these cellulose nanocrystals as reinforcement in nanocomposite materials, emphasizing their eco-friendly and sustainable nature.

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从亚马逊森林培育的杜仲纤维中提取的纤维素纳米晶体：提取与表征

从杜仲纤维中提取纤维素纳米晶体的研究以前从未在文献中报道过。为此，研究人员对杜仲纤维进行了提取处理，获得了纤维素纳米晶体，并利用傅立叶变换红外光谱（FTIR）、透射电子显微镜（TEM）、X射线衍射（XRD）、热重分析（TG）和化学成分分析等技术对这些纳米晶体进行了表征。结果显示，从杜仲纤维中提取的纤维素纳米晶体呈现出细小的针状形态，长度在 50 至 350 纳米之间，直径在 7.5 至 32.7 纳米之间。化学成分分析表明，纤维中含有大量的α-纤维素（约占 63.38%）。傅立叶变换红外光谱分析显示了纤维素材料的特征谱带，而 TG 分析表明纳米纤维素晶体中灰分含量较高，吨位较低。XRD 分析表明纳米晶体的结晶度有所提高。这项研究强调了这些纤维素纳米晶体作为纳米复合材料增强剂的潜在应用，并强调了它们的生态友好性和可持续性。

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来源期刊

Journal of Polymer Research 化学-高分子科学

CiteScore

4.70

自引率

7.10%

发文量

472

审稿时长

3.6 months

期刊介绍： Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.