Investigating a hybrid approach for harvesting nanofibrillated cellulose from agricultural byproducts: sugarcane bagasse and pineapple crown leaves

IF 2.4 3区 化学 Q3 POLYMER SCIENCE
Anusiya Ganesan, Jaiganesh Rengarajan
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Abstract

Sugarcane bagasse (SCB) and pineapple crown leaves (PCL) as low-cost waste biomass generated from the industries were subjected to chemo-mechanical modification to compare the morphology, charge, and thermal stability of native and modified biomass, accompanied by their cellulose-rich fractions. A novel aspect of this research lies in the versatility of the hybrid approach for sustainable production of cellulose polymers from an array of biomass sources. Using scanning electron microscopy (SEM), the surface morphology and structure of the samples were examined. To give thorough insights into the material characteristics, other techniques such as Fourier transform infrared spectroscopy (FTIR), zeta potential, X-ray diffraction (XRD), and thermogravimetric/differential thermal analysis (TG/DTA) were used. According to the findings, after being exposed to the hybrid treatment, the modified sample had a more ordered crystalline structure than the raw biomass (supported by the FTIR spectra), the XRD results indicated that the crystallinity index (CrI) raised with crystallite size. Although the cellulose-rich fraction extracted by the hybrid method showed better thermal stability, the overall thermal analysis revealed that biomass produced by the hybrid method had lower thermal stability than the raw biomass. The current work showed that combining ultrasonication with sulfuric acid hydrolysis is a successful hybrid method for separating cellulose nanofibers from  the cellulosic plant fiber sources for reinforced composite products.

Graphical Abstract

Abstract Image

研究从农副产品(甘蔗渣和菠萝冠叶)中提取纳米纤维素的混合方法
甘蔗渣(SCB)和菠萝冠叶(PCL)是工业中产生的低成本废弃生物质,我们对它们进行了化学机械改性,以比较原生生物质和改性生物质及其富含纤维素的部分的形态、电荷和热稳定性。这项研究的新颖之处在于混合方法的多功能性,可从一系列生物质来源中持续生产纤维素聚合物。研究人员使用扫描电子显微镜(SEM)检查了样品的表面形态和结构。为深入了解材料特性,还使用了其他技术,如傅立叶变换红外光谱(FTIR)、ZETA电位、X射线衍射(XRD)和热重/差热分析(TG/DTA)。研究结果表明,经过混合处理后,改性样品比原始生物质具有更有序的结晶结构(傅立叶变换红外光谱证实了这一点),X 射线衍射结果表明,结晶度指数(CrI)随结晶尺寸的增加而增加。虽然混合法提取的富含纤维素的部分显示出更好的热稳定性,但总体热分析表明,混合法生产的生物质的热稳定性低于原料生物质。目前的工作表明,将超声波处理与硫酸水解相结合是一种成功的混合方法,可从纤维素植物纤维源中分离出纤维素纳米纤维,用于增强复合材料产品。 图文摘要
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来源期刊
Iranian Polymer Journal
Iranian Polymer Journal 化学-高分子科学
CiteScore
4.90
自引率
9.70%
发文量
107
审稿时长
2.8 months
期刊介绍: Iranian Polymer Journal, a monthly peer-reviewed international journal, provides a continuous forum for the dissemination of the original research and latest advances made in science and technology of polymers, covering diverse areas of polymer synthesis, characterization, polymer physics, rubber, plastics and composites, processing and engineering, biopolymers, drug delivery systems and natural polymers to meet specific applications. Also contributions from nano-related fields are regarded especially important for its versatility in modern scientific development.
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