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<p>Bamboo scrimber is a bamboo-based composite material recognized for its high density and exceptional mechanical properties, making it suitable for modern construction applications. However, the small and impermeable pits present in bamboo result in low penetrability for phenol formaldehyde resin (PF), leading to uneven impregnation. This uneven impregnation adversely affects the dimensional stability and mechanical properties of bamboo scrimber. To address this challenge, we applied vacuum-pressure impregnation to fabricate bamboo scrimber, achieving deep resin penetration that significantly enhances its performance. The results indicated that the PF distribution in the vacuum-pressure impregnated bamboo scrimber (V-BS) is deeper and more uniform. Consequently, vacuum-pressure impregnation significantly enhanced dimensional stability, resulting in a WSR of 0.28% and TSR of 3.38%. The mechanical properties were also improved, with the MOR, MOE, and HSS measuring 187&#xa0;MPa, 22 GPa, and 26&#xa0;MPa, respectively. The V-BS exhibits superior dimensional stability and mechanical properties compared to other impregnation methods. In addition, the use of the vacuum-pressure impregnation is expected to realize the saving resin consumption, thereby lowering production costs while ensuring the long-term durability required for outdoor flooring and construction applications.</p>

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High performance engineered bamboo scrimber manufacturing by vacuum-pressure impregnation method

  • 期刊论文

  • 发表日期：

    2026年3月5日

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  • Mingxi Jiang,
  • Jie Yang,
  • Xiuyi Lin,
  • Lingyan Kong,
  • Weiwei Zhang,
  • Dengyun Tu,
  • Hongxia Ma

摘要

Bamboo scrimber is a bamboo-based composite material recognized for its high density and exceptional mechanical properties, making it suitable for modern construction applications. However, the small and impermeable pits present in bamboo result in low penetrability for phenol formaldehyde resin (PF), leading to uneven impregnation. This uneven impregnation adversely affects the dimensional stability and mechanical properties of bamboo scrimber. To address this challenge, we applied vacuum-pressure impregnation to fabricate bamboo scrimber, achieving deep resin penetration that significantly enhances its performance. The results indicated that the PF distribution in the vacuum-pressure impregnated bamboo scrimber (V-BS) is deeper and more uniform. Consequently, vacuum-pressure impregnation significantly enhanced dimensional stability, resulting in a WSR of 0.28% and TSR of 3.38%. The mechanical properties were also improved, with the MOR, MOE, and HSS measuring 187 MPa, 22 GPa, and 26 MPa, respectively. The V-BS exhibits superior dimensional stability and mechanical properties compared to other impregnation methods. In addition, the use of the vacuum-pressure impregnation is expected to realize the saving resin consumption, thereby lowering production costs while ensuring the long-term durability required for outdoor flooring and construction applications.