期刊
CHEMICAL ENGINEERING JOURNAL
卷 430, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.133017
关键词
Soy protein; Urushiol; Underwater adhesive; Underwater 3D printing; Multifunction
资金
- National Natural Science Foundation of China [32071702, 31901255]
- Beijing Forestry University Outstanding Young Talent Cultivation Project [2019JQ03004]
The development of underwater bonding materials using natural plant proteins, such as soy protein isolate, is a significant challenge. The synthesized USPI-CaO adhesive showed strong underwater adhesion and bonding performance to various materials in different aqueous environments, with potential applications in underwater 3D printing and fine machining. USPI-CaO also demonstrated antibacterial, mildew-resistant, and fire-resistant properties, making it versatile for applications in various fields.
The use of natural plant proteins to prepare underwater bonding materials with both strong adhesion and bonding performance underwater is a great challenge. Inspired by mussels and oysters, a Soy protein isolate (SPI)-based underwater adhesive (USPI-CaO) was designed and synthesized. First, 1, 2-epoxy-9-decene (A) was grafted onto SPI to obtain ASPI with unsaturated bond by ring-opening reaction. As a natural source of catechol groups, biological urushiol (U) was then grafted onto ASPI by free-radical polymerization to obtain USPI with underwater adhesion performance. Then, calcium oxide (CaO) was mixed with USPI to obtain inorganic-organic hybrid material (USPI-CaO) with underwater curing ability. The resultant USPI-CaO showed strong underwater adhesion and bonding performance to different materials (glass, metal, PVA, acrylic, wood, hogskin, rubber, ceramic etc., respectively) in different aqueous environments (pH = 5 or 9 water, simulated seawater, organic solvent, iron solution, T = 3 degrees C to 90 degrees C water, etc., respectively). Interestingly, USPI-CaO showed good plasticity and machinability in water, demonstrating its application prospects for underwater 3D printing and underwater fine machining. USPI-CaO also exhibited good antibacterial, mildew-resistant, and fire-resistant properties. USPI-CaO can potential be applied in various fields, such as sealing and repairing underwater/wastewater, wound and hemostatic dressings, wearable electronic devices, and submerged structures.
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