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<p>Inorganic adhesives emerge as a promising solution to counteract the concerns of formaldehyde emissions and excessive petroleum consumption of traditional synthetic resin adhesives. However, their industrial application is curtailed due to the limited interface compatibility and the instability prevalent in their hydration systems. Drawing inspiration from the phase transition adhesion mechanism of snails, this study introduces a method that provides binding sites and enables adaptive pre-adhesion by constructing cross-linking networks with acrylamide and crosslinkers. Subsequently, the adhesion establishes itself within the matrix through the formation of nanocrystals initiated by the hydration of magnesium oxychloride cement (MOC). Through the utilization of synergistic intermolecular interactions coupled with macro-scaled structural alterations, the resultant adhesive demonstrates superior mechanical strength, robust adhesion properties, and enhanced water stability. Compared with pure MOC adhesive, the obtained adhesive exhibited an exceptional surge in water resistance by 1320% and wet bonding strength by 100.0%. This strategy opens a new direction for the design of high-performance inorganic adhesives, significantly enhancing their applicability and broadening the spectrum of their industrial utilization.</p> Graphical Abstract <p></p>

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In situ network-driven biomimetic hydrogel-cement composite adhesives with enhanced mechanical strength and water stability

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月1日

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  • Wenguang Zhou,
  • Ao Zhang,
  • Xinyan Sun,
  • Qiang Gao,
  • Jinfeng Cao,
  • Qianqian Ye,
  • Jianzhang Li

摘要

Inorganic adhesives emerge as a promising solution to counteract the concerns of formaldehyde emissions and excessive petroleum consumption of traditional synthetic resin adhesives. However, their industrial application is curtailed due to the limited interface compatibility and the instability prevalent in their hydration systems. Drawing inspiration from the phase transition adhesion mechanism of snails, this study introduces a method that provides binding sites and enables adaptive pre-adhesion by constructing cross-linking networks with acrylamide and crosslinkers. Subsequently, the adhesion establishes itself within the matrix through the formation of nanocrystals initiated by the hydration of magnesium oxychloride cement (MOC). Through the utilization of synergistic intermolecular interactions coupled with macro-scaled structural alterations, the resultant adhesive demonstrates superior mechanical strength, robust adhesion properties, and enhanced water stability. Compared with pure MOC adhesive, the obtained adhesive exhibited an exceptional surge in water resistance by 1320% and wet bonding strength by 100.0%. This strategy opens a new direction for the design of high-performance inorganic adhesives, significantly enhancing their applicability and broadening the spectrum of their industrial utilization.

Graphical Abstract