Scholarlink

<p>The use of tropical wood species in the production of glued laminated timber (GLT) has been researched with the aim of facilitating the utilization of this material in countries lacking pine and eucalyptus. Teak (<i>Tectona grandis</i>) stands out as a wood species with superior physical and mechanical properties, in addition to exhibiting excellent natural durability. Studies indicate that the use of Teak in GLT is promising. Besides the wood properties, the interphase of the composite directly impacts structural performance, which is typically evaluated through macroscopic testing. However, incorporating microscopic analyses can provide valuable insights into bonding characteristics, which directly affect macroscopic results. Although many studies employ microscopy techniques such as polarized light microscopy (LM), fluorescence microscopy (FM), confocal laser scanning microscopy (CSLM), scanning electron microscopy (SEM), and micro-computed tomography (µCT), no studies have yet compared the effectiveness of these approaches. In this context, the present research aimed to compare the efficiency of five different microscopy techniques in assessing the adhesive interphase in GLT elements produced with Teak. It was observed that the evaluated techniques are complementary, each with specific advantages and limitations. The most detailed results were obtained with CSLM, indicating the relevance of this methodology for more precise analyses of adhesive interphases. In addition to conducting macroscopic tests, it is recommended to employ at least two complementary microscopy techniques to corroborate additional information regarding the quality of bonding in GLT beams. This approach can significantly contribute to the enhancement of GLT manufacturing and usage, reinforcing the effectiveness of Teak as a viable and sustainable alternative.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Application of different microscopy techniques for interphase analysis of glued-laminated Tectona grandis wood

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月7日

查看全文
  • Raquel Schmitt Cavalheiro,
  • Pedro Ignácio Lima Gadêlha Jardim,
  • Antonio José Santos Junior,
  • Victor Almeida de Araujo,
  • Carlito Calil Júnior,
  • Francisco Antonio Rocco Lahr,
  • André Luis Christoforo

摘要

The use of tropical wood species in the production of glued laminated timber (GLT) has been researched with the aim of facilitating the utilization of this material in countries lacking pine and eucalyptus. Teak (Tectona grandis) stands out as a wood species with superior physical and mechanical properties, in addition to exhibiting excellent natural durability. Studies indicate that the use of Teak in GLT is promising. Besides the wood properties, the interphase of the composite directly impacts structural performance, which is typically evaluated through macroscopic testing. However, incorporating microscopic analyses can provide valuable insights into bonding characteristics, which directly affect macroscopic results. Although many studies employ microscopy techniques such as polarized light microscopy (LM), fluorescence microscopy (FM), confocal laser scanning microscopy (CSLM), scanning electron microscopy (SEM), and micro-computed tomography (µCT), no studies have yet compared the effectiveness of these approaches. In this context, the present research aimed to compare the efficiency of five different microscopy techniques in assessing the adhesive interphase in GLT elements produced with Teak. It was observed that the evaluated techniques are complementary, each with specific advantages and limitations. The most detailed results were obtained with CSLM, indicating the relevance of this methodology for more precise analyses of adhesive interphases. In addition to conducting macroscopic tests, it is recommended to employ at least two complementary microscopy techniques to corroborate additional information regarding the quality of bonding in GLT beams. This approach can significantly contribute to the enhancement of GLT manufacturing and usage, reinforcing the effectiveness of Teak as a viable and sustainable alternative.