A multi-functional reversible hydrogel adhesive

Yan, Yonggan; Xu, Shulei; Liu, Huanxi; Cui, Xin; Shao, Jinlong; Yao, Peng; Huang, Jun; Qiu, Xiaoyong; Huang, Chuanzhen

doi:10.1016/j.colsurfa.2020.124622

Cited by 62 publications

(45 citation statements)

References 64 publications

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“…After 6 and 24 h of irradiation, the G′ curve intersected the G″ curve at a shear stress of 747 and 181 Pa, respectively. G′ was lower than G″ when the stress was above these critical values, indicating that the hydrogels changed from a solid to a liquid state, due to the breakdown of the network [ 62 , 63 ]. The photodegradation of the ONB-1 crosslinker caused the failure of the PAAm network.…”

Section: Resultsmentioning

confidence: 99%

Photo-degradable, tough and highly stretchable hydrogels

Fonseca

Bon

Pereira

et al. 2022

Materials Today Bio

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Section: Resultsmentioning

confidence: 99%

Photo-degradable, tough and highly stretchable hydrogels

Fonseca

Bon

Pereira

et al. 2022

Materials Today Bio

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“…With the increase in the R value, the adhesion strength decreased slightly. The increased R value led to the aggregation of adhesive groups inside the polyurethane ( Yan et al, 2020 ) and the increase in the particle size of emulsion, which might be unconducive to its contact with the substrate interface.…”

Section: Resultsmentioning

confidence: 99%

“…Observation of the hydrogel elongation proved that a significant resistance occurred during the peeling of the adhered hydrogel. The different adhesion of the gel to different materials was related to the roughness, chemical properties, and topological connection of the substrate itself ( Yan et al, 2020 ; Yang et al, 2020 ; Pan et al, 2020 ). The universal adhesion characteristics of crosslinked polyurethane hydrogels to organic and inorganic surfaces were proven.…”

Section: Resultsmentioning

confidence: 99%

Simple Preparation of a Waterborne Polyurethane Crosslinked Hydrogel Adhesive With Satisfactory Mechanical Properties and Adhesion Properties

et al. 2022

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Waterborne polyurethane has been proven to be an ideal additive for the preparation of hydrogels with excellent mechanical properties. This work reports that a satisfactory adhesion of acrylamide hydrogels can be obtained by introducing a large amount of waterborne polyurethane into system. A series of polyurethane hydrogels was prepared by using one-pot method with acrylamide monomer and 2-hydroxymethyl methacrylate end-modified waterborne polyurethane emulsion. The hydrogels exhibit good strength (greater than 30 KPa), wide range of adjustable strain (200%–800%), and excellent compression fatigue resistance. The performance improvement is attributed to the fact that the polyurethane emulsion containing double bonds provides chemical crosslinking and forms polyurethane microregions due to hydrophilic and hydrophobic interactions. The hydrogel shows extensive and repeatable adhesion on diverse substrates. This simple preparation method through polyurethane crosslinked hydrogels is expected to become a low-cost and efficient preparation strategy for hydrogel adhesives.

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“…The measured adhesion of the coacervate on the polycarbonate (PC) substrate was 217 kPa, which was less than those of SUS substrates and Cu substrates. This was mainly attributed to the lack of metal complexation between the coacervate and PC substrates. − After freeze-drying and re-adding water, the tensile shear strength of the coacervate did not change significantly (Figure S7). The measured adhesion of the coacervate on the wood substrates increased from 319 to 322 kPa.…”

Section: Results and Discussionmentioning

confidence: 99%

A Universal and Reversible Wet Adhesive via Straightforward Aqueous Self-Assembly of Polyethylenimine and Polyoxometalate

Cui

Yin

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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The excellent adhesion of mussels under wet conditions has inspired the development of numerous catechol-based wet adhesives. Nevertheless, the performance of catechol-based wet adhesive suffers from the sensitivity toward temperature, pH, or oxidation stimuli. Therefore, it is of great significance to develop non-catechol-based wet adhesives to fully recapitulate nature’s dynamic function. Herein, a novel type of non-catechol-based wet adhesive is reported, which is readily formed by self-assembly of commercially available branched polyethylenimine and phosphotungstic acid in aqueous solution through the combination of electrostatic interaction and hydrogen bonding. This wet adhesive shows reversible, tunable, and strong adhesion on diverse substrates and further exhibits high efficacy in promoting biological wound healing. During the healing of the wound, the as-prepared wet adhesive also possesses inherent antimicrobial properties, thus avoiding inflammations and infections due to microorganism accumulation.

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A multi-functional reversible hydrogel adhesive

Cited by 62 publications

References 64 publications

Photo-degradable, tough and highly stretchable hydrogels

Photo-degradable, tough and highly stretchable hydrogels

Simple Preparation of a Waterborne Polyurethane Crosslinked Hydrogel Adhesive With Satisfactory Mechanical Properties and Adhesion Properties

A Universal and Reversible Wet Adhesive via Straightforward Aqueous Self-Assembly of Polyethylenimine and Polyoxometalate

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