探索单宁和咖啡因在不同条件下增强定向刨花板性能的作用

IF 2.5 3区 农林科学 Q1 FORESTRY
Yeray Manuel López‑Gómez, Antti Haapala, Alain Cloutier
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引用次数: 0

摘要

本研究探讨了单宁和咖啡因这两种具有固有抗真菌特性的天然化合物,作为可扩展的处理方法来提高定向刨花板(OSB)的物理和机械性能。与之前主要关注耐久性的研究不同,这项工作评估了这些生物基处理对抗浸出性、内部粘结强度(IB)、弯曲性能、吸水率、厚度膨胀和垂直密度剖面(VDP)的影响。结果表明,与市售OSB相比,该材料有了显著的改进,特别是在机械性能方面。浸出后,两种处理均表现出优异的IB,单宁处理的面板达到最高的IB值(0.27 MPa)。弯曲分析表明,未经浸出的咖啡因处理板获得了最高的断裂模量(MOR, 62.54 MPa)和弹性模量(MOE, 10.36 GPa)。与工业参考和未经处理的面板相比,两种处理在浸出后都保留了显着更高的MOR和MOE值。在单宁处理、咖啡因处理和未经处理的面板中,吸水率和厚度膨胀率相当,但明显低于工业参考面板,工业参考面板与实验室制作的对照板一起用于一般基准测试目的。VDP分析显示,咖啡因处理的面板在浸出前密度最低,而单宁处理的面板在浸出后保持最高密度。这些发现强调了单宁和咖啡因作为有效和可扩展的处理方法,为工业工程木制品制造提供了可持续的功能性添加剂替代品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Exploring tannin and caffeine for enhanced performance of oriented strand boards under varied conditions

This study explores tannin and caffeine, natural compounds with inherent antifungal properties, as scalable treatments to enhance the physical and mechanical performance of oriented strand board (OSB). Unlike previous research that primarily focused on durability, this work evaluates the effects of these bio-based treatments on leaching resistance, internal bond strength (IB), bending properties, water absorption, thickness swelling, and vertical density profile (VDP). The results demonstrate significant improvements over commercially available OSB, particularly in mechanical performance. Post-leaching, both treatments exhibited superior IB, with tannin-treated panels achieving the highest IB value (0.27 MPa). The bending analysis revealed that caffeine-treated panels that were not subjected to leaching achieved the highest modulus of rupture (MOR, 62.54 MPa) and modulus of elasticity (MOE, 10.36 GPa). Both treatments retained significantly higher MOR and MOE values post-leaching compared to the industrial reference and untreated panels. Water absorption and thickness swelling were comparable among tannin-treated, caffeine-treated, and untreated panels but were significantly lower than those of the industrial reference, which was included for general benchmarking purposes alongside the laboratory-made control. VDP analysis showed caffeine-treated panels had the lowest density prior to leaching, whereas tannin-treated panels maintained the highest density after leaching. These findings highlight tannin and caffeine as effective and scalable treatments, providing a sustainable alternative as functional additives for industrial engineered wood product manufacturing.

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来源期刊
European Journal of Wood and Wood Products
European Journal of Wood and Wood Products 工程技术-材料科学:纸与木材
CiteScore
5.40
自引率
3.80%
发文量
124
审稿时长
6.0 months
期刊介绍: European Journal of Wood and Wood Products reports on original research and new developments in the field of wood and wood products and their biological, chemical, physical as well as mechanical and technological properties, processes and uses. Subjects range from roundwood to wood based products, composite materials and structural applications, with related jointing techniques. Moreover, it deals with wood as a chemical raw material, source of energy as well as with inter-disciplinary aspects of environmental assessment and international markets. European Journal of Wood and Wood Products aims at promoting international scientific communication and transfer of new technologies from research into practice.
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