Beetle wing-inspired bio-adhesives with multifunctional nanoarmor: Enhanced performance, biodegradability and environmental safety
文献类型： 外文期刊
作者： Ye, Xiaoge 1 ; Li, Dongna 1 ; Zhang, Yamin 1 ; Li, Zhen 1 ; Feng, Xukang 1 ; Huang, Shiyao 1 ; Ma, Xiaojun 1 ; Li, Jianing 2 ;
作者机构： 1.Tianjin Univ Sci & Technol, Coll Light Ind & Engn, State Key Lab Biobased Fiber Mfg Technol, Tianjin Key Lab Pulp & Paper, Tianjin 300457, Peoples R China
2.Chinese Acad Trop Agr Sci, Rubber Res Inst, State Key Lab Breeding Base Cultivat & Physiol Tro, Minist Agr,Key Lab Biol & Genet Resource Utilizat, Haikou 571101, Peoples R China
关键词： Natural rubber latex; Bio-based adhesives; Cinnamaldehyde-tannic acid nanoemulsion; Reprocessable adhesives; Biodegradability
期刊名称：CHEMICAL ENGINEERING JOURNAL （ 影响因子：13.2； 五年影响因子：13.5 ）
ISSN： 1385-8947
年卷期： 2025 年 520 卷
页码：
收录情况： SCI
摘要： The development of sustainable adhesives that reconcile mechanical robustness, environmental resilience, and multifunctionality remains a formidable challenge. Inspired by the passive unfolding-retraction mechanism and hierarchical micro-nano textures of beetle wings, where rigid elytra provide structural support and flexible hindwings enable energy dissipation, we report a fully bio-based adhesive system that integrates rigid-flexible synergy with multifunctional nanoarmor for sustainable adhesion. Lignin was covalently grafted onto natural rubber latex (NRL) via ammonium persulfate-initiated radical polymerization (NRL-g-Lignin), constructing a three-dimensional "rigid skeleton-flexible matrix" network. The resulting NRL-g-Lignin adhesive exhibits a 40.7 % increase in shear strength (0.878 MPa vs. 0.624 MPa) and a significant thermal stability enhancement (T-max = 392.2 degrees C). Furthermore, the incorporation of cinnamaldehyde-tannic acid nanoemulsions (CA/TA NEs) introduces a homogeneous nanoarmor that improves interfacial adhesion, crack deflection, and offers up to 98.8 % antioxidant (ABTS) and > 99 % antimicrobial efficacy. The adhesive maintains outstanding performance across -18 degrees C to 100 degrees C, exhibits excellent substrate compatibility, can be reprocessed via hot-pressing, and demonstrates a 31.4-50.6 % mass loss after 60 days of soil burial, evidencing its biodegradability and reduced persistence. This multiscale, sustainable design paradigm opens new avenues for high-performance adhesives in recyclable composites, biomedical interfaces, and eco-friendly packaging.
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