Strong adhesion of poly(vinyl alcohol)–glycerol hydrogels onto metal substrates for marine antifouling applications

Zhu, Hengwei; Zhang, Jianan; Su, Pei Fang; Liu, Tianqi; He, Changcheng; Feng, Danqing; Wang, Huiliang

doi:10.1039/c9sm01413f

Cited by 33 publications

(16 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PVA/Gly hydrogel was prepared according to the reported method . The mass fraction of PVA and glycerol was kept at 10% and 50%, respectively, and the rest was deionized water.…”

Section: Experimental Sectionmentioning

confidence: 99%

Transparent Janus Hydrogel Wet Adhesive for Underwater Self-Cleaning

Feng

Yang

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The optical window is a key part of a sensor specially used for oceanographic detection, but it is often severely affected by marine biofouling and oil pollution, resulting in reduced transparency and lifespan. Hydrogel, as a hydrophilic polymer network, has excellent antifouling effects with good transparency, but it is difficult to adhere to substrates, which greatly limits its practical applications. To solve the above problem, a transparent Janus hydrogel wet adhesive was prepared through modifying poly(vinyl alcohol)/glycerol–tannic acid/Cu2+ (PVA/Gly-TA/Cu2+) hydrogel with the underwater adhesive poly(dopamine methacrylamide-co-methoxyethyl acrylate) (P(DMA-co-MEA)) via the coordination effect between Cu2+ and catechol. Even when coated with adhesive, the sample still retained good transmittance. The presence of Cu2+ endowed the hydrogel with better tensile strength and, at the same time, can improve the adhesion of the hydrogel to the substrate through the coordination effect with the adhesive. The tensile stress of Janus hydrogels can even reach 4.4 MPa, and the adhesion strength of the obtained Janus hydrogel can reach about 14 kPa in seawater. Furthermore, the Cu-rich Janus hydrogel presented a significant inhibitory effect on the growth of surface algae. The oil contact angle of the Janus hydrogel was as high as 148° underwater. After the hydrogel was reswollen, there were lower algae densities on the surfaces of the hydrogel and little change in transparency. Considering the above properties, this novel Janus hydrogel is anticipated to be a promising protective material to solve the marine pollution problem confronting optical equipment.

show abstract

“…PVA/Gly hydrogel was prepared according to the reported method . The mass fraction of PVA and glycerol was kept at 10% and 50%, respectively, and the rest was deionized water.…”

Section: Experimental Sectionmentioning

confidence: 99%

Transparent Janus Hydrogel Wet Adhesive for Underwater Self-Cleaning

Feng

Yang

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…For example, strong complexations are formed through H-bonds between hydroxyl groups on PVA chains. 222 Furthermore, polymeric chains have been functionalized with H-bond forming moieties, such as UPy, nucleobases, or phenylalanine residues. 223 The introduction of dynamic Hbonds into the backbone of hydrogel networks can impart interesting material properties, such as self-healing, viscoelasticity, toughness, and adhesion.…”

Section: Adhesives Based On Noncovalentmentioning

confidence: 99%

“…However, strong interactions can be realized through the incorporation of multivalent hydrogen bonding motifs into materials. For example, strong complexations are formed through H-bonds between hydroxyl groups on PVA chains . Furthermore, polymeric chains have been functionalized with H-bond forming moieties, such as UPy, nucleobases, or phenylalanine residues .…”

Section: Adhesives Based On Noncovalent Interactionsmentioning

confidence: 99%

Engineering Hydrogel Adhesion for Biomedical Applications via Chemical Design of the Junction

Bovone

Dudaryeva

Marco‐Dufort

et al. 2021

ACS Biomater. Sci. Eng.

127

View full text Add to dashboard Cite

Hydrogel adhesion inherently relies on engineering the contact surface at soft and hydrated interfaces. Upon contact, adhesion normally occurs through the formation of chemical or physical interactions between the disparate surfaces. The ability to form these adhesion junctions is challenging for hydrogels as the interfaces are wet and deformable and often contain low densities of functional groups. In this Review, we link the design of the binding chemistries or adhesion junctions, whether covalent, dynamic covalent, supramolecular, or physical, to the emergent adhesive properties of soft and hydrated interfaces. Wet adhesion is useful for bonding to or between tissues and implants for a range of biomedical applications. We highlight several recent and emerging adhesive hydrogels for use in biomedicine in the context of efficient junction design. The main focus is on engineering hydrogel adhesion through molecular design of the junctions to tailor the adhesion strength, reversibility, stability, and response to environmental stimuli.

show abstract

“…Hydrogel is a porous and soft polymer material, and has been extensively investigated for potential applications for drug delivery and sensors (Ref 10 - 4 ). In recent years, excellent antifouling properties were also reported for hydrogels like polyethylene glycol (PEG) and polyvinyl alcohol (PVA) hydrogel (Ref 15 , 16 ) due to their low surface energy and floppy nature. According to Brady (Ref 17 ), adhesion of fouling species was correlated to the square root of multiplication of elastic modulus (E) and surface free energy (γ).…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Porous Aluminum Coating by Cored Wire Arc Spray for Anchoring Antifouling Hydrogel Layer

et al. 2021

View full text Add to dashboard Cite

Biofouling has been persisting as a worldwide problem due to the difficulties in finding efficient environment-friendly antifouling coatings for long-term applications. Developing novel coatings with desired antifouling properties has been one of the research goals for surface coating community. Recently hydrogel coating was proposed to serve as antifouling layer, for it offers the advantages of the ease of incorporating green biocides, and resisting attachment of microorganisms by its soft surface. Yet poor adhesion of the hydrogel on steel surfaces is a big concern. In this study, porous matrix aluminum coatings were fabricated by cored wire arc spray, and the sizes of the pores in the aluminum (Al) coatings were controlled by altering the size of the cored powder of sodium chloride. Silicone hydrogel was further deposited on the porous coating. The hydrogel penetrated into the open pores of the porous Al coatings, and the porous Al structure significantly enhanced the adhesion of the hydrogel. In addition, hydrogel coating exhibited very encouraging antifouling properties.

show abstract

Strong adhesion of poly(vinyl alcohol)–glycerol hydrogels onto metal substrates for marine antifouling applications

Abstract: PVA–glycerol gels, which were adhered onto metal substrates by using adhesives, were employed as robust antifouling coating materials. The adhesion stability and antifouling performances of the hydrogel coating against barnacles were investigated.

Cited by 33 publications

References 32 publications

Transparent Janus Hydrogel Wet Adhesive for Underwater Self-Cleaning

Transparent Janus Hydrogel Wet Adhesive for Underwater Self-Cleaning

Engineering Hydrogel Adhesion for Biomedical Applications via Chemical Design of the Junction

Fabrication of Porous Aluminum Coating by Cored Wire Arc Spray for Anchoring Antifouling Hydrogel Layer

Contact Info

Product

Resources

About