从废弃甘蔗叶鞘中提取 CNC 并对其进行表征,作为多功能生物纳米复合材料的增强材料:变废为宝的方法

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
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引用次数: 0

摘要

如今,我们极度依赖各种合成塑料材料来维持巨大的需求,因此,工业和人类都产生了大量塑料垃圾,由于其不可生物降解的特性,这些垃圾对整个环境造成了极大的危害。为了用生态友好型生物聚合物取代化石基塑料材料来解决这一问题,我们将在本研究中介绍一种从废弃甘蔗叶鞘(SLSF)纤维中生产结晶纳米纤维素(CNC)作为绿色增强剂的新方法。变废为宝的方法旨在通过将农业残留物(尤其是甘蔗叶鞘纤维)转化为高质量的 CNC,使其在多个领域得到应用。首先用洗涤剂清洗 SLSF 以去除杂质,然后进行碱处理和漂白操作,最后使用酸水解(60% H2SO4)制造 CNC。利用傅立叶变换红外光谱(FTIR)、扫描电子显微镜(SEM)、X 射线衍射(XRD)、热重分析(TGA)、差热分析(DTG)和差热分析(DTA)对制备的材料进行了表征。傅立叶变换红外光谱(FTIR)表明,新生成的 CNC 具有非常丰富的活性位点,如 -OH、-NH、-COOH、-C-O-C- 等;扫描电子显微镜(SEM)显示,原始纤维表面粗糙,而去除木质素、脂肪和蜡状化合物后,CNC 表面变得光滑。总之,酸水解可提高漂白 SLSF 的结晶度,同时将纤维素尺寸降至纳米级。分析表明,大多数 CNC 的粒径在 100 纳米左右。CNC 具有强度高、可生物降解、对环境影响小等优异特性,是增强复合材料、改善药物输送系统和辅助新型电子产品的理想材料。将 CNC 集成到多种应用中的持续研究和技术进步有可能改变寻求可持续高性能材料的行业。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Extraction, and characterization of CNC from waste sugarcane leaf sheath as a reinforcement of multifunctional bio-nanocomposite material: A waste to wealth approach

Extraction, and characterization of CNC from waste sugarcane leaf sheath as a reinforcement of multifunctional bio-nanocomposite material: A waste to wealth approach

Nowadays we are extremely dependent on various synthetic plastic materials to maintain the massive demand, therefore, both the industries and mankind have been generating a massive amount of plastic waste which is so hazardous for the total environment due to their nonbiodegradable nature. To solve this problem by replacing the fossil-based plastic materials with ecofriendly biopolymers in this current study we will be described a novel method for producing Crystalline Nano Cellulose (CNC) from the waste sugarcane leaf sheaths (SLSF) fibers as a green reinforcing agent. The waste-to-wealth approach aims to elevate agricultural residues, particularly SLSF, by transforming them into high-quality CNCs for use in a variety of sectors. SLSF was initially washed with detergent to remove impurities, followed by alkali treatment and bleaching operation before CNC manufacture using acid hydrolysis (60% H2SO4). The resulting materials were characterized using Fourier transform infrared (FTIR) spectroscopy, Scanning electron microscopy (SEM), X-ray diffraction (XRD), Thermogravimetric analysis (TGA), Differential thermogravimetry (DTG), and Differential thermal analysis (DTA). FTIR indicates the newly produced CNCs is very much rich with active sites like –OH, -NH, -COOH, -C-O-C-, etc., while SEM revealed the raw fiber surface was rough, whereas the surface of CNCs became smooth even after the removal of lignin, fatty, and waxy compounds. Overall, acid hydrolysis was shown to increase the crystallinity of bleached SLSF while reducing cellulose dimensions to the nanoscale. After analysis it was revealed that most CNC particle size was around 100 nm. The outstanding properties of CNCs, including as high strength, biodegradability, and low environmental impact, make them ideal candidates for reinforcing composites, improving medicine delivery systems, and aiding new electronics. Ongoing research and technology advancements in integrating CNCs into many applications have the potential to alter industries looking for sustainable and high-performance materials.

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来源期刊
Carbon Trends
Carbon Trends Materials Science-Materials Science (miscellaneous)
CiteScore
4.60
自引率
0.00%
发文量
88
审稿时长
77 days
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