木材含水率和粘合剂开放时间对湿粘合辐射松木粘合强度的影响

IF 2.4 3区农林科学 Q1 FORESTRY

European Journal of Wood and Wood Products Pub Date : 2024-01-28 DOI:10.1007/s00107-024-02050-w

Jesse Favis, Bruno Monteiro Balboni, C. Brand Wessels

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引用次数: 0

摘要

在潮湿状态下粘合木材可以减少翘曲和劈裂，并提高加工量的回收率。粘合剂的开放时间和含水量可能会对粘合线强度产生重要影响，但目前还没有关于湿木材粘合的规范。用三种聚氨酯粘合剂粘合两种不同含水率的木材试样，并在粘合线上进行剪切测试。开放时间 15 分钟优于 4 分钟和 40 分钟。当木材含水率为 30% 时，所有粘合剂的性能都优于含水率为 101% 时，但只有 15 分钟和 40 分钟的开放时间符合最低剪切力要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of wood moisture content and adhesive open time on the adhesion strength of wet bonded Pinus radiata wood

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Effect of wood moisture content and adhesive open time on the adhesion strength of wet bonded Pinus radiata wood

Gluing wood in the wet state can reduce warping, splitting, and increase processing volume recovery. Adhesive open time and moisture content may play an important role in bond line strength, but there are no specifications for wet wood bonding. Wood specimens at two different moisture contents were glued with three polyurethane adhesives and tested in shear on the bond line. Open time of 15 min was superior to 4 and 40 min. All adhesives performed better when wood was glued at 30% moisture content than at 101%, but only the 15- and 40-min open time met the minimum shear requirement.

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来源期刊

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.