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Human health and environmental protection demand wood-based panel industry for innovative soy-based adhesives with high production efficiency, straightforward synthesis processes, non-toxicity, and high bonding performance. A simple and efficient microwave pretreatment process and low addition of bio-derived crosslinking agent was used in this study to prepare a non-toxic and high-bonding performance soybean protein-based adhesive. After 4 min of microwave pretreatment time, the complex quaternary structure of soybean protein molecule unfolds, the soybean protein disperses evenly and stably, and active groups of soybean protein molecules are exposed. After adding 3.85% crosslinking agent, the moisture absorption rate of the soybean protein-based adhesive decreases by 41.77%, the residual rate increases by 3.68%, and the wet shear strength of the resultant plywood increases to 1.12 MPa, which satisfies requirement of interior use plywood. Compared with previously reported soy-based adhesives, this adhesive is dependent on fewer chemical reagents, but has good bonding performance. The 204.41% of relative cell viability indicates the resultant adhesive was non-toxic. The proposed high-efficiency, high-performance, non-toxic biomass adhesive has great prospects for the industrial application. • A non-toxic and high-performance soybean protein-based adhesive was developed. • Microwave treatment (MT) breaks soybean protein molecule and exposes active groups. • After 4 mins MT, the wet shear strength of resultant plywood increased by 160.47%. • MT reduces the dosage of chemical reagent for soybean protein-based adhesive. • Relative cell viability of modified soybean protein-based adhesive reaches 204.41%. [ABSTRACT FROM AUTHOR]

Given the severe protein denaturation and self-aggregation during the high-temperature desolubilization, denatured soy meal (DSM) is limited by its low reactivity, high viscosity, and poor water solubility. Preparing low-cost and high-performance adhesives with DSM as the key feedstock is still challenging. Herein, this study reveals a double-enzyme co-activation method targeting DSM with the glycosidic bonds in protein-carbohydrate complexes and partial amide bonds in protein, increasing the protein dispersion index from 10.2 % to 75.1 % improves the reactivity of DSM. The green crosslinker transglutaminase (TGase) constructs a robust adhesive isopeptide bond network with high water-resistant bonding strength comparable to chemical crosslinkers. The adhesive has demonstrated high dry/wet shear strength (2.56 and 0.93 MPa) for plywood. After molecular recombination by enzyme strategy, the adhesive had the proper viscosity, high reactivity, and strong water resistance. This research showcases a novel perspective on developing a DSM-based adhesive and blazes new avenues for changes in protein structural function and adhesive performance. [Display omitted] • An all-biomass adhesive was developed by enzyme activation and enzyme crosslinking. • A double-enzyme co-activation method targeted protein-carbohydrate complexes in DSM. • TGase crosslinker replaced the traditional chemical crosslinkers. • The adhesives achieved excellent bonding strength for wood and metal. • Low-cost raw materials and simple steps achieved cost effectiveness of adhesives. [ABSTRACT FROM AUTHOR]

Faced with many challenges such as energy crisis and environmental protection issues, biomass soy protein-based adhesives for replacing aldehyde-based adhesives have gradually become one of the research hotspots for wood industry upgrading. However, soy protein-based adhesives still have many shortcomings. Low bonding strength, poor water resistance and high viscosity restrict their widespread industrial application. In this work, a modified soy protein isolate (SPI) based adhesive with strong water-resistant bonding strength and low viscosity was prepared. Oxidized sodium alginate (OSA) and calcium ions were employed in SPI adhesive system. Results showed that cross-linking between OSA, calcium ions and SPI occurred successfully. The mechanical properties of SPI were significantly improved. The dry and wet bond strengths were 2.05 MPa and 0.97 MPa, respectively, in 65.3 % and 49.2 % increments for comparison. The adhesive samples also showed a reduction in viscosity and an increase in thermal stability. It can be developed as a facile method for preparing bio-adhesives. [Display omitted] • Oxidized sodium alginate and Ca2+ were employed to modify SPI adhesive. • The adhesive shows high bond strength, good water resistance and viscosity. • The wet shear strength reaches 0.97 MPa. • Schiff bases reaction improves the cross-linking density of adhesive. • Hydrogen bonding network provides additional cohesion. [ABSTRACT FROM AUTHOR]

The development of a water-retaining soybean flour-based adhesive with high water resistance, interfacial adhesion and mildew resistance is significant in replacing petroleum-based aldehyde-based resin. Drawing inspiration from lobster shells, soybean flour (SF), self-synthesized epoxy hyperbranched hydroxyethyl cellulose (EH) and calcium phosphate (CaP) oligomers were employed to prepare organic-inorganic hybrid composite adhesives based on hyperbranched structure. The EH component, abundant in active groups, enhanced the interfacial adhesion of the adhesives and served as an organic carrier for the mineralization of CaP oligomers. Prior to adhesive solidification, CaP oligomers mineralized to form an inorganic film akin to milk skin, which prevented water evaporation, resulting in a water retention time of 100 min for the adhesive. During adhesive curing, CaP oligomers with fluid-like behavior polymerized and mineralized, ultimately forming a continuous inorganic network of CaP crystals. This network, combined with the organic substrates (SF and EH), constituted an organic-inorganic hybrid structure, which bolstered the water and mildew resistance (20 days) of the adhesives. The prepressing intensity and wet shear strength of the resultant plywood increased by 168% and 396% to 0.67 MPa and 1.39 MPa, respectively, compared to those of the unmodified adhesive. The strength reached the leading level of the reported soybean flour adhesives. The biomimetic strategy employed here can be extended to high-performance gels and membrane materials, offering a novel modification approach for bio-composites. • Organic-inorganic hybrid composite adhesive based on hyperbranched structure was constructed. • Hyperbranched polymers enhanced interfacial adhesion and system compatibility. • CaP oligomers mineralized to form an inorganic film like milk skin to prevented water evaporation. • The adhesive has water retention, water resistance bonding performance and mildew resistance. • The strategy has significant reference for the research of gels, films and composites. [ABSTRACT FROM AUTHOR]

Magnesium oxychloride cement (MOC) adhesive has the advantages of being non-formaldehyde and flame retardant and having low energy consumption; however, its poor compatibility with the wood interface results in low bonding strength. Inspired by the H-bonded β-sheets nanoconfinement phase of spider silk, a high-performance inorganic adhesive was developed based on the supramolecular network system of poly (vinyl alcohol)/phytic acid (PVA/PA) with dissolved ions and the synchronous hydration process of MOC. Benefiting from the H-bond crosslinking and chelation confinement effects, the addition of PVA/PA enables MOC to penetrate steadily into the wood. Under this strategy, the compressive strength and softening coefficient of the modified MOC adhesive were 65.07 MPa and 0.84, which were 17.03% and 425% higher than the unmodified MOC adhesive, respectively. In addition, the MOC/PVA/PA adhesive achieved a wet shear strength of 2.02 MPa, 68.3% higher than that of the MOC adhesive. These results demonstrate that the MOC/PVA/PA adhesive would be a promising inorganic adhesive in wood-based building materials. [ABSTRACT FROM AUTHOR]

[Display omitted] • ·A water-retaining structure is formed by constructing a topology and combining LiCl. • ·The water retention of prepared adhesive increased by 41% compared to unmodified one. • ·The adhesive shows good bond performance, 1.82 MPa for steel and 1.77 MPa for wood. • ·The adhesive can coat wet surface or low surface free energy substrates uniformly. Traditional synthetic resin adhesives release harmful substances and can be replaced with more sustainable, eco-friendly, and healthier soy protein-based adhesives. However, the low water retention of these adhesives leads to an unstable bonding performance, which hampers their widespread application. Enhancing the water retention of the adhesive while maintaining its bonding and coating performance poses a significant challenge. In this work, a "bond-stitch" topology was designed and constructed by free radical copolymerization between acrylic acid and zwitterionic sulfobetaine methacrylate. This topology was combined with lithium chloride and a self-made epoxy crosslinking agent to construct a water-retaining and enhancing structure in soy protein adhesive systems, achieving simultaneous improvement in water retention, bonding strength, and coating performance. The adhesive exhibited an average shear strength of 1.77 MPa for wood and 1.82 MPa for stainless steel. Additionally, the coating performance was significantly improved, allowing uniform coating on wet poplar veneers (up to 120% moisture content) and low surface free energy substrates. Importantly, the adhesive allowing over 75% of the mass to remain after 24 h of storage in an open environment. This strong water-retaining and enhancing structure construction strategy offers a promising way to develop bio-based adhesives and hydrogels, promoting their widely application. [ABSTRACT FROM AUTHOR]

It is very important for industrial production to develop a strong bonding and multifunctional soy protein (SP)-based adhesive with excellent coating property and high prepressing strength especially for wet veneer. Inspired by mussels, catechol structure was grafted to soybean protein molecules (SPU) by ring opening reaction and free radical polymerization, which endowed the adhesive excellent coating performance on wet veneer. Inspired by oysters, magnesium hydroxide with unsaturated bond (MH@A172) was synthesized, and then mixed with SPU to obtain an organic-inorganic hybrid adhesive (SPU/MH@A172). During the curing process, the synergistic enhancement of the formed cross-linking structure and inorganic mineralization strategy improved the cohesion of SPU/MH@A172 adhesive and endowed strong bonding strength of prepared plywood. That is, when the SPU/MH@A172 adhesive was applied to wood veneer of 100% moisture content, it can be evenly coated and the prepressing bonding strength at 20 °C with 3 h reached 0.53 MPa, which meets the bonding strength requirement of plate forming (≥0.4 MPa). After hot-curing process, the wet and dry shear strength of the prepared plywood reached 1.07 MPa and 2.03 MPa, respectively. In addition, the adhesive had excellent stiffness (45.21 GPa) and micro adhesion (4.62 nN). Importantly, adhesives exhibited excellent mildew resistance (14 days, grade 2), flame retardancy (HRC = 114 kJ/g), low smoke suppression (Ds_max = 95.09) and volatile organic compound release (6.43*106 mg/m2⋅h). Therefore, this collaborative bionic strategy provides a possibility for the development and functional modification of underwater adhesive, film, hydrogels and composite materials. [Display omitted] • A multifunctional soy protein-based adhesive was developed by constructing organic-inorganic mineralization structure. • The prepressing strength of veneer with 100% moisture content at 20 °C and 3 h reaches 0.53 MPa. • The wet and dry shear strength of the prepared plywood reach 1.07 MPa and 2.03 MPa. • The adhesive has excellent stiffness, micro adhesion, mildew resistance, flame retardancy. • The adhesive has low volatile organic compound release and is a product with ecological value. [ABSTRACT FROM AUTHOR]

The development of renewable soy protein (SP) adhesives has aroused growing interest in the wood industry. This research aims to develop a low-cost, sustainable, and high-performance SP adhesive without a petrochemical crosslinker. The hard skin barrier benefits from the dense cross-linked layer of cuticle cells constructed by the peptide bonds between membrane proteins and the dehydration condensation reaction between adjacent hydroxyl groups of polysaccharides. Inspired by the above skin mechanism, a biomimetic strategy of commercially available transglutaminase (TGase) was applied, which constructed Gln-Lys isopeptide bonds within the SP chains. The covalent boroxine structure formed by dehydration of the hydroxyl groups of boronic acid engineered a dense and robust network like skin barrier, converting the SP into a strong, water-resistant, anti-mildew, and flame-retardant adhesive. The resultant adhesive showed outstanding wet shear strength of 1.55 MPa, about 138.5% greater than the pure SP adhesive, and the residual rate increased from 86.19% to 95.99%. The small content of TGase achieved satisfactory performances and low-cost SP adhesive, establishing its usefulness as a crosslinker to replace the petroleum-based modifiers. Notably, the boronic acid mounted on the SP chains by TGase protected proteins from microbial consumption, thus extending the anti-mildew shelf-life of the liquid adhesives from 2 to 15 days. Moreover, the dense and rigid structure containing Gln-Lys isopeptide bonds and boroxine network effectively improved the flame resistance of the cured adhesives, which reduced the peak heat release rate (PHRR) from 95.1 to 84.2 W/g. Therefore, this simple bionic strategy achieved the goal of formulating green, low-cost, high-performance, and multifunctional SP-based adhesives. [ABSTRACT FROM AUTHOR]

It is still a great challenge to develop soybean protein adhesives with high strength and antimildew properties through a sustainable and facile strategy. Herein, water-soluble dialdehyde chitosan (DCS) was obtained by oxidizing chitosan (CS) and used to crosslink soybean meal (SM) to fabricate protein adhesives via the Schiff base reaction. This strategy is simple, all-biomass, and without additional crosslinkers. Owing to the covalent imine bonds and non-covalent hydrogen bonds interactions, the adhesion strength of SM/DCS-4 adhesive reached 1.47 MPa, satisfying the requirement for Type II interior plywood (≥ 0.7 MPa). More importantly, the protein adhesives showed excellent antimildew properties due to the amino and aldehyde groups of DCS and the Schiff base formation. The SM/DCS-4 adhesive exhibited long shelf life (7 d), which is beneficial for industrial applications. This study helps in preparing green and fully bio-based adhesives from agricultural and fishery wastes. [Display omitted] • Dialdehyde chitosan (DCS) acted as a functional crosslinker. • Highly dense imine bonds and hydrogen bonds strengthened the adhesive network. • DCS can improve the bonding strength and antimildew properties of the adhesive. • The soybean meal (SM)/DCS adhesive exhibited long shelf life (7 d). • The SM/DCS adhesive made full use of agricultural and fishery wastes. [ABSTRACT FROM AUTHOR]

[Display omitted] • A muscle tissue-inspired design strategy for enhanced protein based adhesive was proposed. • The wet shear strength of the adhesive increased by 214%. • The existence of sacrificial structure increased the adhesion work by 802%. • The adhesive exhibited remarkably improved mildew resistance. Protein based adhesive is limited by poor mechanical properties and water resistance. Inspired by the structure of muscle tissue, a complex structure of layered double hydroxide (LDH) anchored chicken feather fiber (CFF) and tannic acid (TA) was constructed by self-assembly process, forming a novel organic–inorganic hybrid reinforcement structure (CFF-LDH-TA). CFF-LDH-TA was closely combined with soybean meal (SM) through covalent and hydrogen bond multiple interactions. TA simulated the function of connective tissue around fibers, significantly improving the cohesion of SM based adhesive through effective energy dissipation and load transfer. Due to the increased crosslinking density, the dry and wet shear strengths of SM/CFF-LDH-TA reached 2.12 and 1.60 MPa, respectively, which were 50 % and 214 % higher than original SM adhesive, and significantly exceeded the strength of several commercialized formaldehyde adhesives. The existence of bridging effect and sacrificial structure improved toughness of the adhesive, the work of adhesion increased by 802 %, reached 830 mJ. In addition, the SM/CFF-LDH-TA adhesive had better anti-mold and flame retardant ability. More importantly, the cost was lower than the commercial SM based adhesive. This simple and green preparation method provided a new strategy for the production of high-performance, multifunctional and economically effective SM based adhesive. [ABSTRACT FROM AUTHOR]

Epoxide modification effectively improves the water tolerance of soy protein adhesives, showing great potential in the commercial application as alternatives to petroleum-derived formaldehyde-based adhesives. However, epoxide-modified adhesives still present problematic limitations, such as poor mildew resistance and high hot-pressing temperature. In this study, a curing system based on radical polymerization was designed and developed to prepare soy protein adhesives, instead of building a traditional epoxide cross-linking structure. First, allyl glycidyl ether (G) was grafted onto a soy protein (SP) molecule to obtain soy protein with unsaturated double bonds (G@SP). Allicin (A) was then used as a cross-linker to build a cross-linking structure (G@SP/A) via free-radical polymerization to enhance the bond performance of the adhesive. Relative to that of pure SP adhesive, the wet shear strength (WSS) and dry shear strength (DSS) of plywood bonded with the G@SP/A adhesive increased by 108% and 45%, reaching 1.08 MPa and 1.84 MPa, respectively, at 120 °C pressing temperature. Notably, the G@SP/A adhesive showed superior antibacterial (Escherichia coli and Staphylococcus aureus) activity, high mildew resistance (35 d shelf life), good cytocompatibility, and biodegradability (30 d). Moreover, the WSS of plywood bonded with the G@SP/A adhesive at 80 °C for 6 min and 20 °C for 72 h reached 1.08 MPa and 1.12 MPa, respectively, indicating the sufficient low-temperature curing ability of the resultant adhesive. Thus, building a cross-linking structure by free-radical polymerization can be extended to improve the performance of film composites, other adhesives, and engineering materials. • Free radical polymerization curing system was used to prepare soy protein adhesive. • The resultant adhesive has excellent antibacterial and mildew proof ability. • The resultant adhesive has good cytocompatibility and biodegradability. • The wet shear strength of resultant plywood increased by 108% to 1.08 MPa. • The resultant adhesive has good low temperature curing ability. [ABSTRACT FROM AUTHOR]

High-performance, water-resistant soy protein isolate-based adhesives have broad applications in the plywood manufacturing industry. However, they tend to be difficult to industrialize due to many hydrophilic groups in the molecular chain of soy protein. This paper proposes a facile, economic, and environmentally friendly method to introduce bio-based materials into soy protein isolate to build a high-performance, water-resistant network structure. By introducing the ultrasonicated pectin and carboxylated cellulose nanofiber into the soy protein isolate, the modified soy protein isolate-based hybrid adhesive exhibits excellent adhesive properties and water resistance. In the optimized condition, the wet shear strength increases from 0.63 MPa of the blank sample to 1.15 MPa, and the moisture absorption rate decreases from 22.22% to 14.00%. Furthermore, the toughness of the composite adhesive has been improved. The transition from hydrophilic to hydrophobic is due to the covalent cross-linking and multiple hydrogen bonds within the hybrid adhesive. This facile method offers a new way to replace harmful formaldehyde adhesives. [Display omitted] • Protein molecules and pectin molecules form covalent cross-links through carbonyl ammonium reaction with high temperature and pressure. • The sonicated pectin molecules, protein molecules and carboxylated nanocelluloses synergistically form multiple bonds. • Only 2 g modifier containing 4.76 wt% MP@CNF–C is used to recombine protein molecules to form a denser structure. • The wet shear strength of the plywood obtained after modification increases by 182.5%. [ABSTRACT FROM AUTHOR]

[Display omitted] • An organic-inorganic hybrid multiple-bonding structure soy adhesive was developed. • The dry/wet shear strength of plywood prepared by adhesive increased by 46% and 144%. • The fracture toughness of synthetic adhesive increased by 145%. • The mildew resistance of synthetic adhesive increased from 1 d to more than 40 d. • The maximum heat release rate and total heat release of adhesive reduced by 32.5% and 5.8%. It is important but challenging to develop multifunctional soy protein adhesives with high bonding strength to replace toxic formaldehyde-based adhesives used in the wood-based panel fabrication industry. In this study, inspired by arthropod cuticles, the epoxide-crosslinked soy protein isolate (SPI) was used to form the covalently-bonded network, and dopamine-functionalized waste paper fiber (WPF-PDA) was synthesized as the catechol groups donor to form the hydrogen bond network and physically-enhancement, copper hydroxide was used as an inorganic material that chelated with the catechol groups of WPF-PDA to form the ionic bond network. This formed an organic-inorganic hybrid multiple-bonding structure in the soy protein adhesive. The results showed that the dry/wet shear strength of the plywood prepared by the resultant adhesive increased by 46% and 144% to 2.0 and 1.22 MPa, respectively, compared with SPI adhesive. The fracture toughness increased by 145%, and the residual rate of the adhesive increased by 18.6%, indicating that the bonding strength, toughness, and water resistance of the adhesive were significantly improved. In addition, the anti-mildew time of the adhesive increased from 1 d to more than 40 d, while the maximum heat release rate and total heat release decreased by 32.5% and 5.8%, respectively. This strategy provides a potential method to develop high-performance and multifunctional bio-adhesives, composites, and hydrogels. [ABSTRACT FROM AUTHOR]

[Display omitted] • A new design strategy of crosslinker inspired by spring structure was proposed. • A new adhesive formulation substitute for petroleum-based adhesives was proposed. • A tough keratin-based adhesive with zero formaldehyde-emission was prepared. • The adhesive exhibited high adhesion to numerous types of substrates. It is of great importance but still a great challenge to develop bio-based environmental adhesives for industrial applications. In this study, inspired by the adhesion structure of lignin and spring mechanics, a new biomimetic strategy was proposed to prepare high bonding strength, formaldehyde-free and petroleum resource-independent adhesive from biomass. Through Schiff base and Michael addition reaction between the quinone of oxidized demethylated lignin (DL) and the amino and sulfhydryl groups of soybean protein isolate (SPI) with helix chain, SPI was grafted onto DL to form reinforcement structure and crosslinker with molecular spring structure (namely SDL). Cleavage of the disulfide bonds of keratin and introduction of SDL reconstituted a strong cohesive crosslinking network (KPT-SDL), in which the α -helical peptide chain in SDL was stretched and the intramolecular hydrogen bonds were broken under tensile force, thus achieving energy dissipation and significantly improving the shear strength and toughness of the keratin-based adhesives. The maximum wet strength of the wood-based panel prepared by KPT-SDL adhesive reached to 1.22 MPa, which was comparable to the level of industrial adhesives and 197.56% higher than the original keratin-based adhesive. In addition, KPT-SDL presented high adhesion to numerous types of substrates, including steel and ceramic. This study provided a green and effective biomimetic strategy for high value-added keratin to promote the development of strong and tough composites, which had a good value of frontier research and industrial development. [ABSTRACT FROM AUTHOR]

[Display omitted] • Eco-friendly biobased adhesive with zero-formaldehyde emission was prepared. • A stable cross-linking network of covalent and hydrogen bond was formed. • The wet shear strength of adhesive was improved by 400%. • Water resistance of the adhesive were significantly improved. • The adhesive displayed flame retardant property. Development of wood adhesive combined with excellent bonding strength and water resistance is still challenging, particularly from sustainable and renewable polysaccharide–based materials instead of fossil resources. In this study, inspired by the periodate oxidation − adipic acid dihydrazide (ADH) crosslinking strategy and borate chemistry in plants, oxidized soybean polysaccharide complexed with borax (BSP) and then reacted with ADH via Schiff-base reaction to form the in-situ crosslinking skeleton, in which chitosan (CS) was introduced to improve the active sites. Through the interaction of covalent and hydrogen bond, the adhesive with multi crosslinking network (namely BSPC-ADH) was constructed. The resultant flame-resistant material showed excellent wet shear strength (0.9 MPa) and outstanding water resistance (86.9% residue rate), which met the requirements of indoor plate. This study provided a new method to develop renewable, potentially industrial-usable and environmental-friendly adhesive. [ABSTRACT FROM AUTHOR]

Environmentally friendly soybean meal-based (SM) adhesive has been developed to replace harmful formaldehyde-based adhesives in the wood-based panel industry. But, the extensive application of SM adhesives is limited by several deficiencies, including high brittleness, poor coating ability, and poor antibacterial/mildew resistance, etc. In this study, a new SM adhesive has been designed by constructing a hyperbranched cross-linked structure via the Maillard reaction instead of traditional epoxide-based crosslinking structure. Specifically, the hyperbranched poly(ethylenimine)-functionalized carboxymethyl chitosan was synthesized via a one-step procedure using carboxymethyl chitosan and polyethyleneimine, and then mixed with soybean meal and a crosslinker (2,3-butanedione) to develop a wood adhesive. The dry and wet shear strength of plywood bonded by the obtained adhesive was 55% and 357% higher than those of the original SM adhesive, respectively, which were attributed to the formation of Maillard reaction-based crosslinked structure and improvement of adhesive toughness. The corresponding wood failure percentage was increased to 70% compared to pure SM adhesive. Notably, the prepared adhesive exhibited mildew resistance for 240 h and had a uniform coating ability on the wood surface. Construction Maillard reaction based crosslinking structure has potential application in the enhancement of other bio-adhesives and protein-based hydrogels. [Display omitted] [ABSTRACT FROM AUTHOR]

The development of efficient and sustainable formaldehyde-free adhesives has become an important strategy to solve the problems of environmental pollution, resource depletion and clean production. It is a promising and challenging task to prepare multifunctional adhesives with high adhesive strength from soybean protein (SP), an abundant and sustainable biomaterial that is largely produced from agricultural waste. Inspired by gecko toe, carboxylated paper fiber (CPF) anchored by MOFs (namely UiO66-NH 2 @CPF) was constructed as micro-nano structure reinforcing phase, and resveratrol-based epoxide (RE) was employed as crosslinking agent to formulate a series of SP-based green adhesives. In particular, plywood bonded with SP/RE13/UiO66-NH 2 @CPF1.5 presented the maximum dry/wet shear strength to 2.52 MPa and 1.43 MPa, which increased by 90.9% and 457% compared to that of adhesive made with SP alone, respectively. SP/RE13/UiO66-NH 2 @CPF1.5 displayed a 92.02% residual rate (in water at 60 °C for 6 h), showing excellent bonding strength and water resistance. More importantly, SP/RE13/UiO66-NH 2 @CPF1.5 successfully inhibited the invasion of mold, enabling to extend its shelf time to 12 h. In addition, it showed excellent fluorescent properties, exposing great potential in anti-counterfeiting of wood-based composite materials and information transmission. The development of SP-based adhesives improved the added value of industrial by-products, which not only met the demand for green and sustainable development, but also contributed to clean production by providing environmental and economic benefits along with excellent performance. [Display omitted] [ABSTRACT FROM AUTHOR]