The production of value-added products from agricultural raw materials has been deemed a cutting-edge approach to attaining an uncontaminated geosphere globally. Thus, soybeans have recently attracted several wood-bonding capability studies due to their biobased, high-performance, and sustainable attributes. However, simultaneously achieving high-performance, mechanical, and anti-mildew properties in soybean protein (SBP) adhesive remains an enormous quest. Herein, an organic–inorganic strategy is reported to formulate SBP adhesive via adipic acid hydrazide strengthened α-mangostin (Sα-M) entrapped by mesoporous silica nanoparticles (MSN), yielding a highly biocompatible dense network (MSN/Sα-M). Afterward, the MSN/Sα-M was incorporated into SBP molecular chains through the enhanced dynamic covalent conjugation and intermolecular sacrificial hydrogen bonds to form SBP@MSN/Sα-M adhesive. Consequently, the multiple synergistic interactions resulted in tough adhesive layers, exhibiting high wood-bonding strength of 2.59 and 1.50 MPa at dry and wet conditions, increasing 66% and 206%, respectively. The SBP@MSN/Sα-M adhesive also offers excellent anti-mildew properties, with an extended wood bonding capability beyond 20 days of storage. This unique, versatile, and sustainable strategy provides new headway for developing bio-based wood adhesives from agricultural raw materials.

中文翻译：

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通过有机-无机策略，介孔二氧化硅包埋α-山竹素构建坚韧、高强度、防霉的大豆蛋白粘合剂

利用农业原材料生产增值产品被认为是实现全球地质圈不受污染的前沿方法。因此，大豆由于其生物基、高性能和可持续的属性，最近吸引了多项木材粘合能力研究。然而，在大豆蛋白 (SBP) 粘合剂中同时实现高性能、机械和防霉性能仍然是一项艰巨的任务。在此，报道了一种有机-无机策略，通过介孔二氧化硅纳米颗粒（MSN）捕获己二酸酰肼增强的α-山竹素（Sα-M）来配制SBP粘合剂，产生高度生物相容性的致密网络（MSN/Sα-M）。随后，通过增强的动态共价结合和分子间牺牲氢键将MSN/Sα-M纳入SBP分子链中，形成SBP@MSN/Sα-M粘合剂。因此，多重协同相互作用产生坚韧的粘合层，在干燥和潮湿条件下表现出2.59和1.50 MPa的高木材粘合强度，分别增加66%和206%。 SBP@MSN/Sα-M 粘合剂还具有出色的防霉性能，木材粘合能力可延长存储时间超过 20 天。这种独特、多功能且可持续的策略为利用农业原材料开发生物基木材粘合剂提供了新的进展。