Development of a bio-xerogel from Kraft black liquor and tannin: Crosslinker analysis and property assessment

IF 1.6 4区工程技术 Q3 ENGINEERING, CHEMICAL

Canadian Journal of Chemical Engineering Pub Date : 2025-02-14 DOI:10.1002/cjce.25619

Wardleison Martins Moreira, Paula Valéria Viotti, Sirlei Marques Paschoal, Cristina Maria dos Santos Gaudêncio Baptista, Marcelino Luiz Gimenes

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引用次数: 0

Abstract

The increasing environmental impact of industrial waste has driven the search for new synthesis routes utilizing natural precursors. This study explores the production of a biobased polymer from crude Kraft black liquor and condensed tannin, crosslinked with less toxic aldehydes such as furfural and glyoxal, as alternatives to formaldehyde. The synthesized bio-xerogels demonstrated varying viscosities and physical properties depending on the tannin content and type of crosslinker used. Results indicated that furfural-based formulations successfully gelled and exhibited superior mechanical strength and stability compared to formaldehyde ones. The study highlights the feasibility of using lignin-rich industrial by-products and natural phenolic compounds to develop sustainable, high-performance materials. This contributes to achieving sustainable development goals (SDGs) and offers potential applications in various environmental, medical, and industrial sectors.

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以牛皮纸黑液和单宁为原料制备生物干凝胶的交联分析及性能评价

工业废物对环境的影响越来越大，促使人们寻找利用天然前体的新合成路线。本研究探讨了用粗卡夫黑液和缩合单宁与毒性较小的醛（如糠醛和乙二醛）交联作为甲醛替代品的生物基聚合物的生产。合成的生物干凝胶根据单宁含量和所使用的交联剂类型表现出不同的粘度和物理性质。结果表明，与甲醛相比，糠醛基配方成功凝胶化，具有更好的机械强度和稳定性。该研究强调了利用富含木质素的工业副产品和天然酚类化合物开发可持续的高性能材料的可行性。这有助于实现可持续发展目标，并在各种环境、医疗和工业部门提供潜在应用。

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来源期刊

Canadian Journal of Chemical Engineering 工程技术-工程：化工

CiteScore

3.60

自引率

14.30%

发文量

448

审稿时长

3.2 months

期刊介绍： The Canadian Journal of Chemical Engineering (CJChE) publishes original research articles, new theoretical interpretation or experimental findings and critical reviews in the science or industrial practice of chemical and biochemical processes. Preference is given to papers having a clearly indicated scope and applicability in any of the following areas: Fluid mechanics, heat and mass transfer, multiphase flows, separations processes, thermodynamics, process systems engineering, reactors and reaction kinetics, catalysis, interfacial phenomena, electrochemical phenomena, bioengineering, minerals processing and natural products and environmental and energy engineering. Papers that merely describe or present a conventional or routine analysis of existing processes will not be considered.