Scholarlink

<p>The need for eco-friendly and effective sound-insulation building materials has increased as noise pollution has become a more pressing environmental problem in China. Wood’s natural low density limits its sound insulation performance, so impregnation and densification are frequently employed to improve its sound insulation performance. However, existing treatment technologies lack systematic theoretical support and specialized process design targeted at acoustic properties. Therefore, this study uses fast-growing poplar veneer and low-molecular-weight furfuryl alcohol (FA) to construct sound-insulating units at the micro scale to develop a high-performance wood-based acoustic material. By combining single-factor experiments with response surface methodology (RSM), the optimal formulation was determined to be 32 wt% FA, 4 wt% MA, and 25 wt% IPA, under which the sound transmission loss of the modified veneer increased to 23.28 dB, presenting an 88.05% improvement compared to untreated samples. Multiscale characterization demonstrated that the modified veneer displayed markedly enhanced surface hardness, acoustic impedance, and acoustic radiation damping. Furthermore, the FA resin effectively filled the lumens and pits, forming isolated pore structures and multiple internal reflection interfaces, thereby improving sound insulation by enhancing acoustic wave reflection and promoting sound energy dissipation.</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

Optimization and mechanism of furfurylated poplar veneer for high sound insulation performance

  • 期刊论文

  • 发表日期：

    2026年7月29日

查看全文
  • Shuangshuang Wu,
  • Binbin Huang,
  • Xin Tao,
  • Wei Xu,
  • Stavros Avramidis

摘要

The need for eco-friendly and effective sound-insulation building materials has increased as noise pollution has become a more pressing environmental problem in China. Wood’s natural low density limits its sound insulation performance, so impregnation and densification are frequently employed to improve its sound insulation performance. However, existing treatment technologies lack systematic theoretical support and specialized process design targeted at acoustic properties. Therefore, this study uses fast-growing poplar veneer and low-molecular-weight furfuryl alcohol (FA) to construct sound-insulating units at the micro scale to develop a high-performance wood-based acoustic material. By combining single-factor experiments with response surface methodology (RSM), the optimal formulation was determined to be 32 wt% FA, 4 wt% MA, and 25 wt% IPA, under which the sound transmission loss of the modified veneer increased to 23.28 dB, presenting an 88.05% improvement compared to untreated samples. Multiscale characterization demonstrated that the modified veneer displayed markedly enhanced surface hardness, acoustic impedance, and acoustic radiation damping. Furthermore, the FA resin effectively filled the lumens and pits, forming isolated pore structures and multiple internal reflection interfaces, thereby improving sound insulation by enhancing acoustic wave reflection and promoting sound energy dissipation.