利用香蕉M. Oranta (Sagar kala)树轴纤维的纤维素纳米结晶和聚乳酸制备环境友好型生物聚合物纳米复合膜并对其进行表征:一条新途径

Md. Mahmudur Rahman , Mohd. Maniruzzaman , Mst. Nusrat Zaman
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引用次数: 0

摘要

如今,为了满足全球日益增长的人口的巨大需求,我们极其依赖各种合成塑料材料。因此,每时每刻,工业和人类都在产生大量的塑料垃圾,这已被公认为是整个环境的一个瓶颈。因此,要解决这一特殊问题,就必须用生物聚合物取代化石基合成塑料材料,以切实保护环境。然而,由于对如何处理起始材料的关键认识不足,从天然来源中提取生物聚合物在过去几十年中一直被认为是一个巨大的挑战。然而,科学家们一直在努力改进生产生物塑料和聚合物材料的新途径,以解决这一问题。然而,在这项工作中,我们关注的是利用农业废弃物生物质生产生物纳米复合薄膜的可持续/绿色路线。原材料纤维和结晶纳米纤维素(CNC)是从香蕉(M. oranta)的果柄中提取的。为了更好地制造纳米复合材料,固体聚乳酸(PLA)被溶解在特定的有机溶剂(如氯仿)中进行提纯。然后,采用著名的 EIPS 方法,制备出 CNC-PLA 仿生复合薄膜,以改善其整体性能。对试样进行了傅立叶变换红外-ATR、TGA、DTA、DTG、SEM、XRD 和 BDA 分析。观察结果表明,新制造的生物聚合物 CNC-PLA 薄膜在 600°C 以下具有更高的热稳定性,结晶度指数值相对较高(约为 86.09±0.001%),具有相当多的活性结合位点(如 OH、COOH、C-O-C、NH 等),并表现出良好的表面形貌和生物降解性。由于这些优异的性能,新制备的 CNC-PLA 仿生复合材料将被大量应用于工业、工程和生物医学领域,作为现有化石基有害合成材料的可持续替代品,为发展绿色健康环境做出贡献。
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Fabrication and characterization of environmentally friendly biopolymeric nanocomposite films from cellulose nanocrystal of banana M. Oranta (Sagar kala) tree rachis fibers and poly lactic acid: A new route
To maintain the huge demand of the overgrowing population of this globe nowadays, we are extremely dependent on various synthetic plastic materials. Hence, every moment, both industries and mankind generate a huge amount of plastic waste, which has lately been recognized as a breakneck for the total environment. Therefore, to solve this particular problem, it is very crucial to replace fossil-based synthetic plastic materials with biopolymers for viable environmental protection. However, the scheming of biopolymers from their natural sources has been recognized as an immense challenge in the earlier few decades owing to the insufficiency regarding the critical understanding of the handling of starting materials. Yet, scientists have been exasperating to improve a new route of production of bioplastic and polymeric materials to solve this issue. However, in this work, we focus on the sustainable/green route of bio-nanocomposite film production from agro-waste biomass. Whereas the raw fibers and crystalline nanocellulose (CNC) were extracted from the rachis of bananas (M. oranta). Inversely, the solid polylactic acid (PLA) was purified by dissolving in a particular organic solvent (like chloroform) for better nanocomposite fabrication. Then, by employing the prominent EIPS method, the CNC-PLA bionanocomposite films were fabricated to improve their overall properties. The specimens were characterized by FTIR-ATR, TGA, DTA, DTG, SEM, XRD, and BDA analysis. The observed outcomes recommended that the newly manufactured biopolymeric CNC-PLA films have greater thermal steadiness up to 600°C, a relatively higher crystallinity index value (about 86.09±0.001%), possess considerable active binding sites like OH, COOH, C-O-C, NH, etc., and exhibit good surface morphology and biodegradability. Due to these outstanding properties, the newly produced CNC-PLA bionanocomposites would be beneficially used in bulk-scale industrial, engineering, and bio-medical sectors as a sustainable replacement for the existing fossil-based hazardous synthetic ones to develop a green and healthy environment.
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来源期刊
CiteScore
8.40
自引率
0.00%
发文量
100
审稿时长
33 weeks
期刊介绍: The journal has a particular interest in publishing papers on the unique issues facing chemical engineering taking place in countries that are rich in resources but face specific technical and societal challenges, which require detailed knowledge of local conditions to address. Core topic areas are: Environmental process engineering • treatment and handling of waste and pollutants • the abatement of pollution, environmental process control • cleaner technologies • waste minimization • environmental chemical engineering • water treatment Reaction Engineering • modelling and simulation of reactors • transport phenomena within reacting systems • fluidization technology • reactor design Separation technologies • classic separations • novel separations Process and materials synthesis • novel synthesis of materials or processes, including but not limited to nanotechnology, ceramics, etc. Metallurgical process engineering and coal technology • novel developments related to the minerals beneficiation industry • coal technology Chemical engineering education • guides to good practice • novel approaches to learning • education beyond university.
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