Effect of the percentage of MUF adhesive coverage on shear strength when bonding different wood species

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-07-03 DOI:10.15376/biores.19.3.5672-5684

Marek Nociar, Tomáš Pipíška, Pavel Kral, Samo Grbec, Milan Šernek

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Abstract

Due to climate changes, it is necessary to consider the use of other wood species to replace currently used woods. This work deals with the determination of the shear strength of bonded veneers (eight European wood species: spruce, larch, pine, beech, oak, poplar, birch, and alder) with Silekol® 311 melamine-urea-formaldehyde adhesive (MUF) with a variable coverage on the surface of the samples: 10, 15, 20, 25, 30, 50, 75, and 100%. The Automated Bonding Evaluation System (ABES) was used to evaluate and compare adhesive bond strengths. The larch, beech, and oak samples exhibited greater single-lap shear strength than the control samples from spruce. There was no statistically significant difference in shear strength regarding the adhesive coverage from 100% to 20% on the surface of the samples, for almost all wood species. The results of the project provide basic information about the bonding strengths with different coverage in the adhesive layer, comparing non-commonly used wood species in wood-based composites such as oriented strand board and particleboard.

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粘合不同木种时 MUF 粘合剂覆盖率对剪切强度的影响

由于气候变化，有必要考虑使用其他木种来替代目前使用的木材。这项工作的目的是测定使用 Silekol® 311 三聚氰胺-尿素-甲醛粘合剂（MUF）粘合的单板（8 种欧洲木材：云杉、落叶松、松木、榉木、橡木、杨木、桦木和桤木）的剪切强度，粘合剂在样品表面的覆盖率各不相同：10、15、20、25、30、50、75 和 100%。自动粘接评估系统 (ABES) 用于评估和比较粘接强度。落叶松、山毛榉和橡木样品的单层剪切强度高于云杉对照样品。几乎所有木材种类的样品表面粘合剂覆盖率从 100% 到 20% 之间的剪切强度都没有明显的统计学差异。该项目结果提供了有关胶粘剂层不同覆盖率下粘合强度的基本信息，并对定向刨花板和刨花板等人造复合材料中的非常用木材种类进行了比较。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.