Mr. Sticky's Underwater Glue

£9.9
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Mr. Sticky's Underwater Glue

Mr. Sticky's Underwater Glue

RRP: £99
Price: £9.9
£9.9 FREE Shipping

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Y. Wang, V. Kang, W. Federle, E. Arzt and R. Hensel, Adv. Mater. Interfaces, 2020, 7, 2001269 CrossRef . B. Zhang, L. Jia, J. Jiang, S. Wu, T. Xiang and S. Zhou, ACS Appl. Mater. Interfaces, 2021, 13, 36574–36586 CrossRef CAS PubMed .

The Best Underwater Super Aquarium Glue (Aquarium Safe) - FishLab The Best Underwater Super Aquarium Glue (Aquarium Safe) - FishLab

Y. Chen, X. Guo, A. Mensah, Q. Wang and Q. Wei, ACS Appl. Mater. Interfaces, 2021, 13, 59761–59771 CrossRef CAS PubMed . Fig. 7 Various applications of underwater adhesion hydrogels. Figure reproduced with permission from Elsevier and Springer Nature.J. Liu, S. Wang, Q. Shen, L. Kong, G. Huang and J. Wu, ACS Appl. Mater. Interfaces, 2021, 13, 1535–1544 CrossRef CAS PubMed . Y. Xiong, X. Zhang, X. Ma, W. Wang, F. Yan, X. Zhao, X. Chu, W. Xu and C. Sun, Polym. Chem., 2021, 12, 3721–3739 RSC . Another major intermolecular force is electrostatic interaction. The positive charges in hydrogels that provide electrostatic interactions are derived from cationic functional groups, positively charged chain structures and metal cations, and the negative charges are derived from anionic functional groups. 79,82–84 The electrostatic interaction will not fail due to the influence of the water environment, and the hydrogel based on the intermolecular force-dominated cross-linking has excellent underwater tensile properties. Wang et al. synthesized a hydrogel with strong underwater ductility by combining the electrostatic interaction between polyacrylamide, chitosan, 2-acryloxyethyl trimethyl ammonium chloride and polyacrylic acid chain with the hydrophobic interaction of octadecyl acrylate ( Fig. 2B), 83 which can still be stretched 54 times after reaching the swelling equilibrium. The synergy of hydrogen bonding and electrostatic interactions provides the most dominant cohesive force in underwater adhesion, 29,79,82 and the amount and ratio of the two intermolecular forces affect the mechanical properties of the hydrogel. Zhang et al. synthesized a random copolymer of poly(methacrylatoethyl trimethylammonium chloride-random-dopamine methacrylamide) (PMD), which contained catechol and quaternary ammonium salts. PMD non-covalently crosslinks with poly(acrylic acid) (PAA) chains through hydrogen bonding and electrostatic interactions ( Fig. 2C). 82 It is found that the hydrogel has higher tensile properties with the decrease of the PAA ratio, but the toughness and strength decrease, which is related to the decrease of the hydrogen bond ratio. 82 H. Yuk, T. Zhang, S. Lin, G. A. Parada and X. Zhao, Nat. Mater., 2016, 15, 190–196 CrossRef CAS PubMed .

Scientists make powerful underwater glue inspired by Scientists make powerful underwater glue inspired by

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