VATA: A Poly(vinyl alcohol)- and Tannic Acid-Based Nontoxic Underwater Adhesive
| Autor: | Jun-Sung Kim, Kim Du-Hwan, Myungeun Seo, Jungseok Hahn, Donghwan Youn, Honggu Hwang, Haeshin Lee, Jongmin Park, Daiheon Lee |
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| Rok vydání: | 2020 |
| Předmět: |
Vinyl alcohol
Materials science 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention Vata Gold fish chemistry.chemical_compound law Adhesives Goldfish Tensile Strength Materials Testing Tannic acid Animals General Materials Science Composite material Caenorhabditis elegans chemistry.chemical_classification biology Adhesiveness Water Adhesion Polymer 021001 nanoscience & nanotechnology biology.organism_classification 0104 chemical sciences chemistry Cyanoacrylate Polyvinyl Alcohol Stress Mechanical Adhesive 0210 nano-technology Tannins |
| Zdroj: | ACS Applied Materials & Interfaces. 12:20933-20941 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.0c02037 |
| Popis: | Few studies aiming to develop a glue with an underwater reusable adhesive property have been reported because combining the two properties of reusable adhesion and underwater adhesion into a single glue formulation is a challenging issue. Herein, preparation of a simple mixture of poly(vinyl alcohol) (PVA) and a well-known phenolic compound, namely, tannic acid (TA), results in an underwater glue exhibiting reusable adhesion. We named the adhesive VATA (PVA + TA). Using VATA, two stainless steel objects (0.77 kg each) are able to be instantly attached. In addition to the high adhesive strength, surface-applied VATA in water retains its adhesive capability even after 24 h. In contrast, cyanoacrylate applied under the same water condition rapidly loses its adhesive power. Another advantage is that VATA's adhesion is reusable. Bonded objects can be forcibly detached, and then the detached ones can be reattached by the residual VATA. VATA maintains nearly 100% of its initial adhesive force, even after 10 repetitions of attach-detach cycles. VATA bonds various materials ranging from metals and polymers to ceramics. Particularly, we first attempt to test the toxicity of the underwater adhesives using an invertebrate nematode, Caenorhabditis elegans and gold fish (vertebrate) due to potential release to the environment. |
| Databáze: | OpenAIRE |
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