High-Performance and Energy-Efficient Nanolignocellulose Foams for Sustainable Technologies

IF 7.3 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

ACS Sustainable Chemistry & Engineering Pub Date : 2025-06-15 DOI:10.1021/acssuschemeng.5c00761

Seyed Ehsan Hadi, Saeed Davoodi*, Erfan Oliaei*, Mohammad Morsali, Agnes Åhl, Elisabetta Nocerino, Fengyang Wang, Matilda Andersson, Malwine Lühder, André L. C. Conceição, Mika Henrikki Sipponen, Lars A. Berglund, Lennart Bergström and Fredrik Lundell*,

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引用次数: 0

Abstract

There has been a recent surge of interest in biobased foams for applications ranging from building sustainability (insulation) to biomedicine, pharmaceutics, and electronics (scaffolds), with nanocellulose-based foams being particularly promising due to their porous and low-density structure. This study compares the production energy, structure, and properties of foams made from TEMPO-oxidized lignocellulose nanofibers (F_TOLCNF) derived from unbleached wood pulp, and TEMPO-oxidized cellulose nanofibers (F_TOCNF) from bleached cellulose pulp. Additionally, the incorporation of tannic acid (TA) as a biobased additive is explored for its ability to enhance the mechanical strength of F_TOLCNF, contributing to improved performance. This builds upon the inherent advantages of F_TOLCNF, which not only demonstrate superior structural integrity and load-bearing capacity (specific Young’s modulus of 37.4 J g^–1, compared to 16.4 J g^–1 for TOCNF) but also exhibit a higher yield during production due to the minimal processing required for unbleached pulp. Furthermore, F_TOLCNF production requires about 18% less cumulative energy than F_TOCNF (27 vs 33 MJ kg^–1), largely owing to the energy-efficient preparation of TOLCNF from unbleached wood pulp. F_TOLCNF also have a significantly lower cumulative energy demand (CED) compared to fossil-based alternatives like expanded polystyrene (EPS) and polyurethane (PU), highlighting their reduced environmental impact. Despite their lightweight nature, F_TOLCNF exhibit competitive compressive strength, making them viable candidates for eco-friendly applications across various industries. Overall, this study demonstrates that F_TOLCNF are an attractive alternative to other bio- and fossil-based foams, offering a balance of energy efficiency, higher yield, mechanical performance, and sustainability.

Sustainable nanolignocellulose foams offer high-performance and energy-efficient alternatives to conventional materials, advancing eco-friendly technologies.

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可持续技术的高性能和节能纳米纤维素泡沫

最近，人们对生物基泡沫的应用兴趣激增，从建筑可持续性（绝缘）到生物医学、制药和电子（支架），其中纳米纤维素泡沫由于其多孔和低密度结构而特别有前途。本研究比较了来自未漂白木浆的tempo氧化木质纤维素纳米纤维（FTOLCNF）和来自漂白纤维素纸浆的tempo氧化纤维素纳米纤维（FTOCNF）的泡沫的生产能量、结构和性能。此外，单宁酸（TA）作为一种生物基添加剂的掺入被探索其增强FTOLCNF机械强度的能力，有助于提高性能。这建立在FTOLCNF的固有优势之上，它不仅表现出优越的结构完整性和承载能力（特定杨氏模量为37.4 J - g-1，而TOCNF为16.4 J - g-1），而且由于未漂白纸浆所需的最少加工，在生产过程中表现出更高的收率。此外，生产FTOLCNF所需的累积能量比FTOCNF少18% (27 MJ / kg-1 vs 33 MJ / kg-1)，这主要是由于从未漂白的木浆中高效制备TOLCNF。与基于化石的替代品（如膨胀聚苯乙烯（EPS）和聚氨酯（PU））相比，FTOLCNF的累积能源需求（CED）也显著降低，突出了它们对环境的影响较小。尽管其重量轻，但FTOLCNF具有竞争力的抗压强度，使其成为各种行业环保应用的可行候选者。总的来说，这项研究表明，FTOLCNF是其他生物和化石基泡沫的有吸引力的替代品，提供了能源效率，更高的产量，机械性能和可持续性的平衡。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Sustainable Chemistry & Engineering CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL

CiteScore

13.80

自引率

4.80%

发文量

1470

审稿时长

1.7 months

期刊介绍： ACS Sustainable Chemistry & Engineering is a prestigious weekly peer-reviewed scientific journal published by the American Chemical Society. Dedicated to advancing the principles of green chemistry and green engineering, it covers a wide array of research topics including green chemistry, green engineering, biomass, alternative energy, and life cycle assessment. The journal welcomes submissions in various formats, including Letters, Articles, Features, and Perspectives (Reviews), that address the challenges of sustainability in the chemical enterprise and contribute to the advancement of sustainable practices. Join us in shaping the future of sustainable chemistry and engineering.