不同巴西树种和压制水平的交叉层压木材粘接质量

IF 1.5 4区农林科学 Q2 Agricultural and Biological Sciences

Maderas-Ciencia Y Tecnologia Pub Date : 2023-08-03 DOI:10.22320/s0718221x/2024.02

João Vítor Felippe Silva, Karina Aparecida De Oliveira, Carolina Aparecida Barros Oliveira, Maria Fernanda Felippe Silva, Julio Cesar Molina

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引用次数: 0

摘要

正确选择交叉层合材的原材料和工艺参数，是保证交叉层合材在建筑中应用的关键。然而，目前很少有巴西树种用于生产交叉层压木材。本研究的目的是表征四种巴西再造林树种(油松、大桉树、香椿和油桐)在双组分聚氨酯胶粘剂和五种不同压力水平(0.1 MPa至1.3 MPa)下生产交叉层压木材的粘合质量。根据标准EN 14080(2013)，通过分层和胶线剪切测试来评估粘合质量。不同树种对分层有一定影响，在0.7 MPa的粘接压力下，油松与油松复合材的粘接效果最好。交叉层压木材的粘结压力对剪切试验断裂面中木材的百分比没有影响，而密度越大的交叉层压木材的百分比越大。

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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Cross laminated timber bonding quality for different brazilian species and pressing levels

The proper choice of raw materials and manufacturing parameters for Cross Laminated Timber is essential to promote the proper bonding of the lamellas, aiming at their application in construction. However, few Brazilian species are currently used in the production of Cross Laminated Timber. The aim of this work was to characterize the bonding quality of four Brazilian reforestation species (Pinus elliottii, Eucalyptus grandis, Toona ciliata and Acrocarpus fraxinifolius) in the manufacture of Cross Laminated Timber with two-component polyurethane adhesive and five different pressure levels (from 0,1 MPa to 1,3 MPa). Bonding quality was evaluated through delamination and glue line shear tests based on the standard EN 14080 (2013). Delamination was affected by the wood species, and the best adhesion occurred for the Cross Laminated Timber manufactured with Pinus elliottii and Acrocarpus fraxinifolius at the bonding pressure of 0,7 MPa. Cross Laminated Timber bonding pressure did not affect the percentage of wood in the shear test fractured surface, whereas higher density Cross Laminated Timber showed higher percentages.

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来源期刊

Maderas-Ciencia Y Tecnologia MATERIALS SCIENCE, PAPER & WOOD-

CiteScore

2.80

自引率

13.30%

发文量

审稿时长

>12 weeks

期刊介绍： Maderas-Cienc Tecnol publishes inedits and original research articles in Spanish and English. The contributions for their publication should be unpublished and the journal is reserved all the rights of reproduction of the content of the same ones. All the articles are subjected to evaluation to the Publishing Committee or external consultants. At least two reviewers under double blind system. Previous acceptance of the Publishing Committee, summaries of thesis of Magíster and Doctorate are also published, technical opinions, revision of books and reports of congresses, related with the Science and the Technology of the Wood. The journal have not articles processing and submission charges.