Soy protein adhesives have the advantages of low price and renewability but are limited by terrible bonding strength and poor water resistance, which restricts the practical application. Herein, inspired by the structure of mussels and organic-inorganic hybrid strengthening mechanism, a novel and bio-based soy protein adhesive (SPI-RA-CSA) based on rosin acid derivative and calcium sulfoaluminate was generated. According to the optimization of response surface methodology (RSM), the best proportion of adhesive SPI-RA6-CSA1 was chosen. The dry and wet shear strengths of SPI-RA6-CSA1 adhesive reached 1.92 and 1.35 MPa, respectively, which were 120% and 210% higher than original soy protein adhesive. Meanwhile, SPI-RA6-CSA1 adhesive showed excellent coating performance even if it was coated on wet wood veneer. In addition, SPI-RA6-CSA1 adhesive effectively inhibited the formation of mold and exhibited outstanding antimicrobial ability for () and () with antimicrobial rates of 87.36% and 85.73%, respectively. What's more, SPI-RA6-CSA1 adhesive demonstrated prominent flame retardant properties reducing the harm of fire accidents. SPI-RA6-CSA1 adhesive also possessed the characteristics of low energy consumption and environmentally friendliness by Life Cycle Assessment (LCA). Therefore, this simple strategy provides workable guidance for the production of multifunctional and green soy protein adhesive.

中文翻译：

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受有机-无机杂化结构启发，由松香酸衍生物组成的环保型多功能大豆蛋白粘合剂

大豆蛋白粘合剂具有价格低廉、可再生等优点，但其粘合强度差、耐水性差，限制了其实际应用。在此，受贻贝结构和有机-无机混合强化机制的启发，产生了一种基于松香酸衍生物和硫铝酸钙的新型生物基大豆蛋白粘合剂（SPI-RA-CSA）。根据响应面法(RSM)优化，选择最佳胶粘剂SPI-RA6-CSA1比例。 SPI-RA6-CSA1胶粘剂的干剪切强度和湿剪切强度分别达到1.92和1.35 MPa，比原来的大豆蛋白胶粘剂提高了120%和210%。同时，SPI-RA6-CSA1胶粘剂即使涂覆在湿木板上也表现出优异的涂覆性能。此外，SPI-RA6-CSA1粘合剂可有效抑制霉菌的形成，并对()和()表现出出色的抗菌能力，抗菌率分别为87.36%和85.73%。此外，SPI-RA6-CSA1粘合剂表现出突出的阻燃性能，减少火灾事故的危害。通过生命周期评估（LCA），SPI-RA6-CSA1粘合剂还具有低能耗和环境友好的特点。因此，这个简单的策略为多功能绿色大豆蛋白粘合剂的生产提供了可行的指导。