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Article ; Online: A high-performance bio-based adhesive comprising soybean meal, silk fibroin, and tannic acid inspired by marine organisms.

Jiang, Ke / Wu, Qiao / Chen, Yuan / Fan, Dongbin / Chu, Fuxiang

International journal of biological macromolecules

2023 Volume 242, Issue Pt 3, Page(s) 125095

Abstract: The sustainable development of high-performance bio-based adhesives is both important and challenging for the wood industry. Herein, inspired by the hydrophobic property of barnacle cement protein and the adhesive property of mussel adhesion protein, a ... ...

Abstract	The sustainable development of high-performance bio-based adhesives is both important and challenging for the wood industry. Herein, inspired by the hydrophobic property of barnacle cement protein and the adhesive property of mussel adhesion protein, a water-resistant bio-based adhesive was developed from silk fibroin (SF) rich in hydrophobic β-sheet structures and tannic acid (TA) rich in catechol groups as reinforcing components and soybean meal molecules rich in reactive groups as substrates. SF and soybean meal molecules formed a water-resistant tough structure through a multiple cross-linking network including covalent bonds, hydrogen bonds, and dynamic borate ester bonds constructed by TA and borax. The wet bond strength for the developed adhesive achieved 1.20 MPa, exhibiting its excellent application capabilities in humid environments. The storage period of the developed adhesive (72 h) was 3 times that of pure soybean meal adhesive owing to the enhanced mold resistance of the adhesive by TA. Furthermore, the developed adhesive demonstrated excellent biodegradability (45.45 % weight loss in 30 days) and flame retardancy (limiting oxygen index of 30.1 %). Overall, this environmental and efficient biomimetic strategy provides a promising and feasible route to develop high-performance bio-based adhesives.
MeSH term(s)	Adhesives/chemistry ; Fibroins ; Aquatic Organisms ; Flour ; Glycine max ; Water
Chemical Substances	Adhesives ; Fibroins (9007-76-5) ; Water (059QF0KO0R)
Language	English
Publishing date	2023-05-26
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2023.125095
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Article ; Online: Toward well-defined colloidal particles: Efficient fractionation of lignin by a multi-solvent strategy.

Jiang, Pan / Pang, Bo / Li, Gaiyun / Han, Yanming / Chu, Fuxiang

International journal of biological macromolecules

2023 Volume 254, Issue Pt 3, Page(s) 127948

Abstract: Colloidal lignin particles (CLPs) have sparked various intriguing insights toward bio-polymeric materials and triggered many lignin-featured innovative applications. Here, we report a multi-solvent sequential fractionation methodology integrating green ... ...

Abstract	Colloidal lignin particles (CLPs) have sparked various intriguing insights toward bio-polymeric materials and triggered many lignin-featured innovative applications. Here, we report a multi-solvent sequential fractionation methodology integrating green solvents of acetone, 1-butanol, and ethanol to fractionate industrial lignin for CLPs fabrication. Through a rationally designed fractionation strategy, multigrade lignin fractions with variable hydroxyl group contents, molecular weights, and high purity were obtained without altering their original chemical structures. CLPs with well-defined morphology, narrow size distribution, excellent thermal stability, and long-term colloidal stability can be obtained by rational selection of lignin fractions. We further elucidated that trace elements (S, N) were reorganized onto the near-surface area of CLPs from lignin fractions during the formation process in the form of -SO
MeSH term(s)	Solvents/chemistry ; Lignin/chemistry ; Ethanol ; Acetone ; Chemical Fractionation/methods
Chemical Substances	Solvents ; Lignin (9005-53-2) ; Ethanol (3K9958V90M) ; Acetone (1364PS73AF)
Language	English
Publishing date	2023-11-10
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2023.127948
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Article ; Online: A high-performance bio-based adhesive comprising soybean meal, silk fibroin, and tannic acid inspired by marine organisms

Jiang, Ke / Wu, Qiao / Chen, Yuan / Fan, Dongbin / Chu, Fuxiang

International Journal of Biological Macromolecules. 2023 May 26, p.125095-

2023 , Page(s) 125095–

Abstract	The sustainable development of high-performance bio-based adhesives is both important and challenging for the wood industry. Herein, inspired by the hydrophobic property of barnacle cement protein and the adhesive property of mussel adhesion protein, a water-resistant bio-based adhesive was developed from silk fibroin (SF) rich in hydrophobic β-sheet structures and tannic acid (TA) rich in catechol groups as reinforcing components and soybean meal molecules rich in reactive groups as substrates. SF and soybean meal molecules formed a water-resistant tough structure through a multiple cross-linking network including covalent bonds, hydrogen bonds, and dynamic borate ester bonds constructed by TA and borax. The wet bond strength for the developed adhesive achieved 1.20 MPa, exhibiting its excellent application capabilities in humid environments. The storage period of the developed adhesive (72 h) was 3 times that of pure soybean meal adhesive owing to the enhanced mold resistance of the adhesive by TA. Furthermore, the developed adhesive demonstrated excellent biodegradability (45.45 % weight loss in 30 days) and flame retardancy (limiting oxygen index of 30.1 %). Overall, this environmental and efficient biomimetic strategy provides a promising and feasible route to develop high-performance bio-based adhesives.
Keywords	adhesion ; biodegradability ; biomimetics ; borax ; catechol ; cement ; crosslinking ; fibroins ; hydrogen ; hydrophobicity ; mussels ; oxygen ; soybean meal ; storage time ; sustainable development ; tannins ; weight loss ; wood industry ; Bio-based adhesive ; Multiple cross-linking ; Biomimetic strategy
Language	English
Dates of publication	2023-0526
Publishing place	Elsevier B.V.
Document type	Article ; Online
Note	Pre-press version
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2023.125095
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Article ; Online: In Situ Polymerization of Hydrogel Electrolyte on Electrodes Enabling the Flexible All-Hydrogel Supercapacitors with Low-Temperature Adaptability.

Zhang, Yijing / Sun, Yue / Nan, Jingya / Yang, Fusheng / Wang, Zihao / Li, Yuxi / Wang, Chuchu / Chu, Fuxiang / Liu, Yupeng / Wang, Chunpeng

Small (Weinheim an der Bergstrasse, Germany)

2024 , Page(s) e2309900

Abstract: All-hydrogel supercapacitors are emerging as promising power sources for next-generation wearable electronics due to their intrinsic mechanical flexibility, eco-friendliness, and enhanced safety. However, the insufficient interfacial adhesion between the ...

Abstract	All-hydrogel supercapacitors are emerging as promising power sources for next-generation wearable electronics due to their intrinsic mechanical flexibility, eco-friendliness, and enhanced safety. However, the insufficient interfacial adhesion between the electrode and electrolyte and the frozen hydrogel matrices at subzero temperatures largely limit the practical applications of all-hydrogel supercapacitors. Here, an all-hydrogel supercapacitor is reported with robust interfacial contact and anti-freezing property, fabricated by in situ polymerizing hydrogel electrolyte onto hydrogel electrodes. The robust interfacial adhesion is developed by the synergistic effect of a tough hydrogel matrix and topological entanglements. Meanwhile, the incorporation of zinc chloride (ZnCl
Language	English
Publishing date	2024-02-05
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2168935-0
ISSN	1613-6829 ; 1613-6810
ISSN (online)	1613-6829
ISSN	1613-6810
DOI	10.1002/smll.202309900
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Article ; Online: Recyclable and mechanically tough nanocellulose reinforced natural rubber composite conductive elastomers for flexible multifunctional sensor.

Xu, Shijian / Jia, Qianqian / Zhang, Kai / Lu, Chuanwei / Wang, Chunpeng / Wang, Jifu / Yong, Qiang / Chu, Fuxiang

International journal of biological macromolecules

2024 Volume 268, Issue Pt 2, Page(s) 131946

Abstract: The development of flexible wearable multifunctional electronics has gained great attention in the field of human motion monitoring. However, developing mechanically tough, highly stretchable, and recyclable composite conductive materials for application ...

Abstract	The development of flexible wearable multifunctional electronics has gained great attention in the field of human motion monitoring. However, developing mechanically tough, highly stretchable, and recyclable composite conductive materials for application in multifunctional sensors remained great challenges. In this work, a mechanically tough, highly stretchable, and recyclable composite conductive elastomer with the dynamic physical-chemical dual-crosslinking network was fabricated by the combination of multiple hydrogen bonds and dynamic ester bonds. To prepare the proposed composite elastomers, the polyaniline-modified carboxylate cellulose nanocrystals (C-CNC@PANI) were used as both conductive filler to yield high conductivity of 15.08 mS/m, and mechanical reinforcement to construct the dynamic dual-crosslinking network with epoxidized natural rubber latex to realize the high mechanical strength (8.65 MPa) and toughness (29.57 MJ/m
Language	English
Publishing date	2024-04-29
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2024.131946
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Article ; Online: Tough and strong sustainable thermoplastic elastomers nanocomposite with self-assembly of SI-ATRP modified cellulose nanofibers

Xu, Chaoqun / Li, Bowen / Yu, Juan / Hu, Lihong / Jia, Puyou / Fan, Yimin / Lu, Chuanwei / Chu, Fuxiang

Carbohydrate Polymers. 2023 Nov., v. 319 p.121160-

2023

Abstract: The ingenious design of sustainable thermoplastic elastomers (STPEs) is of great significance for the goal of the sustainable development. However, the preparation of STPEs with good mechanical performance is still complicated and challenging. Herein, to ...

Abstract	The ingenious design of sustainable thermoplastic elastomers (STPEs) is of great significance for the goal of the sustainable development. However, the preparation of STPEs with good mechanical performance is still complicated and challenging. Herein, to achieve a simple preparation of STPEs with strong mechanical properties, two biobased monomers (tetrahydrofurfuryl methacrylate (THFMA) and lauryl methacrylate (LMA)) were copolymerized into poly (THFMA-co-LMA) (PTL) and grafted onto TEMPO oxidized cellulose nanofiber (TOCN) via one-pot surface-initiated atom transfer radical polymerization (SI ATRP). The grafting modified TOCN could be self-assembled into nano-enhanced phases in STPEs, which are conducive to the double enhancement of the strength and toughness of the STPEs, and the size of nano-enhanced phases is mainly affected by TOCN fiber length and molecular weight of grafting chains. Especially, with the addition of 7 wt% TOCN, tensile strength, tensile strain, toughness, and glass transition temperature (Tg) of TOCN based STPEs (TOCN@PTL) exhibited 140 %, 36 %, 215 %, and 6.8 °C increase respectively, which confirmed the leading level in the field of bio-based elastomers. In general, this work constitutes a proof for the chemical modification and self-assembly behavior of TOCN by one-pot SI ATRP, and provides an alternative strategy for the preparation of high-performance STPEs.
Keywords	cellulose ; cellulose nanofibers ; glass transition temperature ; molecular weight ; nanocomposites ; polymerization ; sustainable development ; tensile strength ; thermoplastics ; TEMPO oxidized cellulose nanofiber (TOCN) ; Surface-initiated atom transfer radical polymerization (SI ATRP) ; Sustainable thermoplastic elastomers ; Self-assembly ; Mechanical properties
Language	English
Dates of publication	2023-11
Publishing place	Elsevier Ltd
Document type	Article ; Online
ZDB-ID	1501516-6
ISSN	1879-1344 ; 0144-8617
ISSN (online)	1879-1344
ISSN	0144-8617
DOI	10.1016/j.carbpol.2023.121160
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Article: The contribution mechanism of furfuryl alcohol treatment on the dimensional stability of plantation wood

Shen, Xiaoshuang / Yang, Sheng / Li, Gaiyun / Liu, Shengquan / Chu, Fuxiang

Industrial crops and products. 2022 Oct. 15, v. 186

2022

Abstract: Furfuryl alcohol polymers (PFA) derived from lignocellulosic biomass have been confirmed as an effective modifier to improve dimensional stability of wood. However, the main reason for the dimensional stability related to this method has remained unclear. ...

Abstract	Furfuryl alcohol polymers (PFA) derived from lignocellulosic biomass have been confirmed as an effective modifier to improve dimensional stability of wood. However, the main reason for the dimensional stability related to this method has remained unclear. In this study, principal consideration of dimensional stabilization was analyzed by a mathematics model regarding anti-swelling efficiency (ASE) and cell wall bulking of furfurylated woods with different weight gain precents (WPGs), and ASE’ obtained by method of Ohmae et al. Simultaneously, confocal laser scanning microscopy and nanoindentation technique were applied to explain the dimensional stability mechanism. Results showed that both ASE and cell wall bulking increased with WPG at 0–69%. A nearly linear (R² = 0.9690) relationship was observed between ASE and cell wall bulking. ASE’ values at different WPGs were approaching zero. The dimensional stability was dominated by cell wall bulking analyzed through both the mathematical model and small ASE’ values at various WPG. In this study, the mechanistic insights into dimensional stabilization of furfurylated wood could provide highly beneficial for controlling the dimensional stability by cell wall bulking.
Keywords	biomass ; cell walls ; dimensional stability ; furfuryl alcohol ; lignocellulose ; mathematical models ; mathematics ; weight gain ; wood
Language	English
Dates of publication	2022-1015
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	1132158-1
ISSN	1872-633X ; 0926-6690
ISSN (online)	1872-633X
ISSN	0926-6690
DOI	10.1016/j.indcrop.2022.115143
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Article: Preparation of size-controlled all-lignin based carbon nanospheres and their electrochemical performance in supercapacitor

Wang, Hang / Xiong, Fuquan / Yang, Jiamei / Ma, Bole / Qing, Yan / Chu, Fuxiang / Wu, Yiqiang

Industrial crops and products. 2022 May, v. 179

2022

Abstract: Lignin, as the second most abundant biomass material in nature, is regarded as an ideal carbon precursor due to the presence of a larger amount of aromatic ring structural unit. Carbon nanospheres, as one of the vital members of carbon materials, are ... ...

Abstract	Lignin, as the second most abundant biomass material in nature, is regarded as an ideal carbon precursor due to the presence of a larger amount of aromatic ring structural unit. Carbon nanospheres, as one of the vital members of carbon materials, are promising advanced materials for various areas. However, lignin-based carbon spheres suffered a complex fabrication process, high crosslinking between spheres, and non-adjustable micron size. Here, all-lignin based carbon nanospheres (LCNS) with tunable size and microstructure were prepared via self-assembly, stabilization treatment, and carbonization. Subsequently, their applications in supercapacitor electrode material were investigated. The results showed that the monodispersed, ordered, and regular carbon nanospheres could be constructed. The size of LCNS could be tuned ranging from 256 to 416 nm via changing the initial concentration of lignin between 0.5 and 2 mg mL⁻¹. The as-prepared LCNS provided a specific surface area between 652 and 736 m² g⁻¹ through adjusting the size and microstructure. When the LCNS was assembled into the electrochemical capacitor, the LCNS electrode materials exhibited a high specific capacitance of 147 F g⁻¹. Additionally, the LCNS-based symmetrical capacitor showed an ultralow characteristic relaxation time (0.86 s) and long cycle stability for 10,000 cycles. The capacitance properties could be regulated via reconciling the size of nanospheres and microstructure induced by carbonization temperature. The governable capacitance performance indicates that the as-prepared LCNS should be a promising candidate material for energy storage.
Keywords	aromatic compounds ; biomass ; capacitance ; carbon ; carbonization ; crosslinking ; electrochemical capacitors ; electrochemistry ; electrodes ; energy ; lignin ; microstructure ; nanospheres ; surface area ; temperature
Language	English
Dates of publication	2022-05
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	1132158-1
ISSN	1872-633X ; 0926-6690
ISSN (online)	1872-633X
ISSN	0926-6690
DOI	10.1016/j.indcrop.2022.114689
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Effects of action processes on wood modification: the in situ polymerization of epoxy monomers as an example

Guo, Dengkang / Yang, Sheng / Fu, Feng / Li, Gaiyun / Chu, Fuxiang

Wood Sci Technol. 2022 Nov., v. 56, no. 6 p.1705-1720

2022

Abstract: A suitable polymer formation process is crucial for the design of new wood modification systems. An unsuitable polymer formation process may result in defects and a decrease in the performance of modified wood. This study elucidates that the shrinkage of ...

Abstract	A suitable polymer formation process is crucial for the design of new wood modification systems. An unsuitable polymer formation process may result in defects and a decrease in the performance of modified wood. This study elucidates that the shrinkage of the gel polymer formed in situ in wood during polymerization results in the shrinking and cracking of the modified wood and shows the importance of separating polymers and solvents during the first stage of wood cell wall polymerization modification to avoid the formation of a gel polymer. Based on this principle, a new epoxy modification system for this process is designed, which includes an epoxy monomer (1,4-butanediol diglycidyl ether), a curing agent (isophorone diamine), and a solvent (ethyl alcohol and water). The epoxy polymer is separated from water during the first-stage reaction, thereby avoiding the formation of a gel polymer. No shrinkage or cracking is observed in the modified wood. Furthermore, the performance of the treated wood is improved. The results show that the anti-swelling efficiency, modulus of rupture, modulus of elasticity, and compressive strength of the treated wood are enhanced by 49%, 20.4%, 24.1%, and 44.2%, respectively, compared with untreated wood. This study provides a reference for the design of new wood modification systems.
Keywords	cell walls ; compression strength ; epoxides ; ethanol ; gels ; modulus of elasticity ; modulus of rupture ; polymerization ; polymers ; shrinkage ; solvents ; wood
Language	English
Dates of publication	2022-11
Size	p. 1705-1720.
Publishing place	Springer Berlin Heidelberg
Document type	Article ; Online
ZDB-ID	241313-9
ISSN	0043-7719
ISSN	0043-7719
DOI	10.1007/s00226-022-01424-8
Database	NAL-Catalogue (AGRICOLA)

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Article: Modification mechanism of plantation wood via grafting epoxy monomers onto cell walls

Guo, Dengkang / Yang, Sheng / Fu, Feng / Guo, Nai / Li, Gaiyun / Chu, Fuxiang

Wood science and technology. 2022 May, v. 56, no. 3

2022

Abstract: The range of application for fast-growing plantation wood is limited by its dimensional instability, susceptibility to biodegradation and low mechanical strength. In this study, a novel method based on in situ reaction of a hydrophilic epoxy monomer (1,4- ...

Abstract	The range of application for fast-growing plantation wood is limited by its dimensional instability, susceptibility to biodegradation and low mechanical strength. In this study, a novel method based on in situ reaction of a hydrophilic epoxy monomer (1,4-butanediol diglycidyl ether) in the wood cell walls was proposed to improve the performance of plantation wood. The effects of curing agent on the reaction mechanism and performance of treated wood were discussed in detail. The results demonstrated that after curing using methyl hexahydro phthalic anhydride (MHHPA), an epoxy oligomer with a higher molecular weight and superior water resistance was formed inside the wood cell wall compared to curing with the 2-methylimidazole (2-MI). Moreover, the epoxy group was able to react with alcohol and phenolic hydroxyl in wood through 2-MI catalysis resulting in a higher grafting ratio. After the modification reaction, notable improvements were observed in the dimensional stability (anti-swelling efficiency of more than 65%), fungal (Gloeophyllum trabeum) decay resistance (weight loss of < 6%) and compressive strength (increased by 17%) of the wood.
Keywords	Gloeophyllum trabeum ; alcohols ; biodegradation ; catalytic activity ; cell walls ; compression strength ; decay resistance ; dimensional stability ; epoxides ; fungi ; hydrophilicity ; molecular weight ; phthalic anhydride ; reaction mechanisms ; strength (mechanics) ; technology ; weight loss ; wood
Language	English
Dates of publication	2022-05
Size	p. 813-831.
Publishing place	Springer Berlin Heidelberg
Document type	Article
ZDB-ID	241313-9
ISSN	0043-7719
ISSN	0043-7719
DOI	10.1007/s00226-022-01384-z
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