乳酸促进了从长叶紫草叶中提取的纳米纤维素的表面改性

Q2 Materials Science

Polymers from Renewable Resources Pub Date : 2024-07-24 DOI:10.1177/20412479241266957

Ankit Chakraborty, Pradnya Ghalsasi, P. Radha

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引用次数: 0

摘要

纳米纤维素（NC）正在彻底改变生物聚合物的世界。本研究探讨了如何使用 NC 作为聚合物复合材料的添加剂，以增强其结构和物理化学性能。NC 从 Borassus flabellifer 叶子中提取，并用乳酸（LA）进行改性。按重量百分比计算，叶片由 62.2% 的纤维素、15.8% 的半纤维素和 12.2% 的木质素组成。经过碱处理后，得到了平均粒径为 317 nm 的 NCs。采用包括 SEM、FTIR 和 XRD 在内的表征技术来评估表面改性的效果。LA 官能团的存在证实了用 LA 对 NC 进行表面改性是成功的。XRD 分析表明，NCs 和表面改性 NCs（SMNCs）都具有结晶性，SMNCs 的结晶指数（48.27%）高于 NCs（42.78%）。SMNCs 较低的吸水潜能表明其具有用于生物聚合物复合材料的潜力，在材料科学领域的应用前景广阔。

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Lactic acid-facilitated surface modification of nanocellulose extracted from Borassus flabellifer leaves

Nanocellulose (NC) is revolutionizing the world of biopolymers. This research investigated the use of NC as an additive in polymer composites to enhance their structural and physio-chemical properties. The NC was extracted from Borassus flabellifer leaves and modified with lactic acid (LA). The leaves consisted of 62.2% cellulose, 15.8% hemicellulose, and 12.2% lignin by weight %. Alkali treatment was applied to obtain NCs with an average particle size of 317 nm. Characterization techniques, including SEM, FTIR, and XRD, are employed to evaluate the effectiveness of surface modification. The successful surface modification of NC with LA was confirmed by the presence of LA functional groups. XRD analysis revealed the crystalline nature of both the NCs and surface-modified NCs (SMNCs), with a higher crystalline index for the SMNCs (48.27%) than for the NCs (42.78%). The lower water absorption potential of SMNCs suggests their potential for use in biopolymer composites, demonstrating promising applications in materials science.

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来源期刊

Polymers from Renewable Resources Materials Science-Polymers and Plastics

CiteScore

3.50

自引率

0.00%

发文量

期刊介绍： Polymers from Renewable Resources, launched in 2010, publishes leading peer reviewed research that is focused on the development of renewable polymers and their application in the production of industrial, consumer, and medical products. The progressive decline of fossil resources, together with the ongoing increases in oil prices, has initiated an increase in the search for alternatives based on renewable resources for the production of energy. The prevalence of petroleum and carbon based chemistry for the production of organic chemical goods has generated a variety of initiatives aimed at replacing fossil sources with renewable counterparts. In particular, major efforts are being conducted in polymer science and technology to prepare macromolecular materials based on renewable resources. Also gaining momentum is the utilisation of vegetable biomass either by the separation of its components and their development or after suitable chemical modification. This journal is a valuable addition to academic, research and industrial libraries, research institutions dealing with the use of natural resources and materials science and industrial laboratories concerned with polymer science.