Highly efficient antifouling property based on self‐generating hydrogel layer of polyacrylamide coatings

Abstract

Pursuit of robust antifouling coatings is a persistent objective for marine materials. We present here the experimental realization of a series of polyacrylamide-based resins with a self-generating hydrogel layer, arising from the polymerization of acrylamide (AM), butyl acrylate, methacrylic acid, and AM derivatives. The mechanical strength and thermal stability are markedly enhanced due to the change of the structure of modified resins. The preliminary results indicate that resultant resins with crosslinking structure show satisfactory abrasion resistance and swelling properties. The results of antifouling panel testing in shallow submergence for three months reveal that the addition of AM derivatives leads to generation of a thin soft and dynamic layer of hydrogel, which enhances antifouling properties. The formation of hydrogel and self-generating property make it promising in various antifouling applications.

Polymer-Based Coatings with Integrated Antifouling and Bactericidal Properties for Targeted Biomedical Applications

“…The fouling resistance of PHEMA and PHPMA coatings increases with an increase in brush thickness up to a threshold value, after which the hydration capacity is reduced . PAAm also possesses good antifouling properties due to the strong hydrogen bonding ability of the amide bond. , However, the presence of carcinogenic acrylamide monomer residues from the degradation of PAAm poses a safety concern in its use for biomedical applications. , PVP, whose biocompatibility is better than that of PAAm, has also been investigated as antifouling coatings. PVP can be grafted as coatings with bottlebrush architecture in addition to linear architecture, and the former has been demonstrated to possess superior antifouling ability as compared to the latter at similar polymer layer thickness and grafting density .…”

“…28 PAAm also possesses good antifouling properties due to the strong hydrogen bonding ability of the amide bond. 42,43 However, the presence of carcinogenic acrylamide monomer residues from the degradation of PAAm poses a safety concern in its use for biomedical applications. 44,45 PVP, whose biocompatibility is better than that of PAAm, 26 has also been investigated as antifouling coatings.…”

Preparation and Properties of Environmentally Friendly Marine Antifouling Coatings Based on a Collaborative Strategy

“…8 Zinc acrylate resin was selected as a self-polishing resin. The total thickness of the dry film of the antifouling coating was about 150 μm, 31,32 which was measured with an ultrasonic thickness meter (Quinsonic 7, ElektroPhysik, Germany).…”

Synthesis and Properties of Self-Polishing Antifouling Coatings Based on BIT-Acrylate Resins

“…Currently, a variety of novel marine antifouling coatings are being developed, including low-surface-energy coatings [10][11][12], antifoulant grafted coatings [13,14], amphiphilic coatings [15,16], main chain degradable coatings [17,18], the resistance of protein adsorption coatings [19,20], biomimetic surface microstructure coatings [21,22], nanocomposite coatings [23,24], hydrogel coatings [25][26][27], and other dynamic surface coatings, etc. However, as a typical representative of self-polishing technology, the widely used tin-free self-polishing coating remains the primary antifouling approach with outstanding antifouling efficacy, a longer-term validity period, and more cost-effectiveness.…”