How Moisture Affects Adhesives, Sealants, and Coatings

Petrie, Edward M.

doi:10.1016/s0026-0576(13)70070-9

Cited by 33 publications

(38 citation statements)

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“…The importance of mineral hydrogel formation is further highlighted by the lack of adhesion of calcium polyacrylate which is present as a precipitate in aqueous solution (data not shown). Surface roughness is another major contributor to strong adhesion, which can be explained by an “interlock model” as shown in Figure a. A rougher surface and a more viscous adhesive enable easy fluid penetration, producing more mechanical interlock joints and hence better adhesion.…”

Section: Resultsmentioning

confidence: 99%

Mineral-Enhanced Polyacrylic Acid Hydrogel as an Oyster-Inspired Organic–Inorganic Hybrid Adhesive

Li¹,

Jia²,

Sun

et al. 2018

ACS Appl. Mater. Interfaces

151

114

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Underwater adhesion is crucial to many marine life forms living a sedentary lifestyle. Amongst them, mussel adhesion has been mostly studied, which inspires numerous investigations of 3,4-dihydroxyphenylalanine (DOPA)-based organic adhesives. In contrast, reef-building oysters represent another important "inorganic" strategy of marine molluscs for adhesion by generating biomineralized organic-inorganic adhesives, which is still rarely studied and no synthetic analogues have ever been reported so far. Here, a novel type of oyster-inspired organic-inorganic adhesive based on a biomineralized polyelectrolyte hydrogel is reported, which consists of polyacrylic acid physically cross-linked by very small amorphous calcium carbonate nanoparticles (<3 nm). The mineral-enhanced polyelectrolyte hydrogel adhesive is shown to be injectable, reusable, and optically clear upon curing in air. Moreover, comparable adhesion performance to DOPA-based adhesives is found for the hydrogel adhesive in both dry and wet conditions, which can even be further enhanced by introducing a small amount of second large cross-linker such as negatively charged nanoparticles. The present mineral hydrogel represents a new type of bio-inspired organic-inorganic adhesive that may find a variety of potential applications in adhesive chemistry.

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Section: Resultsmentioning

confidence: 99%

Mineral-Enhanced Polyacrylic Acid Hydrogel as an Oyster-Inspired Organic–Inorganic Hybrid Adhesive

Li¹,

Jia²,

Sun

et al. 2018

ACS Appl. Mater. Interfaces

151

114

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“…Although the shear strength of oligo(HCA) is lower than that of the commercial cynaoacrylate, values exceeding 1 MPa can still be categorized as a robust adhesive, which would be adequate in several applications. 47,49 On the other hand, the oligo(HCA) can be applied on wet surfaces, which is a critical advantage over other types of adhesives, and we attribute this capability to the presence of catecholic moieties in its chemical structure.…”

Section: Resultsmentioning

confidence: 99%

Fast and Green Synthesis of an Oligo-Hydrocaffeic Acid-Based Adhesive

Ghadban

Mohanram

Miserez³

2018

ACS Omega

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A green, mussel-inspired bioadhesive based on oligomerization of hydrocaffeic acid was synthesized in water by an ultrafast one-step reaction in the presence of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide as an activating agent. The resulting oligomers exhibited strong wet adhesion when applied to different substrates including glass, stainless steel, and aluminum. Compared to most commercial adhesives, this bioinspired adhesive is produced via a sustainable and green process, i.e., aqueous-based synthesis, one-step reaction, and in the absence of any purification step to obtain the final functional adhesive.

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“…Some researchers have presented the results of the impact of humid ageing on the strength of adhesive and adhesive joints [16,[21][22][23][24][25][26]. Leger et al [2] investigated the ageing of a single lap joint and one-part rubber toughened epoxy/amine adhesive in water at 70 • C. The impact of the temperature and water on the classic tensile data were evaluated during the tensile tests of bulk adhesive dog-bone specimens.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Ageing in Water Solution Containing Iron Sulfate on the Mechanical Properties of Epoxy Adhesives

Rudawska

Brunella

2020

Polymers

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This study investigates the effect of operating factors such as seasoning in water solution containing iron (II) sulfate—FeSO4 (5 different water solution variants were tested) on the mechanical properties of an adhesive compound made of epoxy resin and amine curing agent, in a ratio of 100 g resin to 12 g curing agent. Strength tests of cured adhesive compound samples were performed on the Zwick/Roell Z150 testing machine in compliance with the EN ISO 604 standard. During the tests, compression modulus, compressive strength and compressive strain were measured. Obtained results served as a basis for analyzing the effect of a water environment containing iron sulfate on a given adhesive compound. It has been found that too high iron sulfate content in water has a negative effect on the mechanical properties of adhesive compound samples.

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How Moisture Affects Adhesives, Sealants, and Coatings

Cited by 33 publications

References 0 publications

Mineral-Enhanced Polyacrylic Acid Hydrogel as an Oyster-Inspired Organic–Inorganic Hybrid Adhesive

Mineral-Enhanced Polyacrylic Acid Hydrogel as an Oyster-Inspired Organic–Inorganic Hybrid Adhesive

Fast and Green Synthesis of an Oligo-Hydrocaffeic Acid-Based Adhesive

The Effect of Ageing in Water Solution Containing Iron Sulfate on the Mechanical Properties of Epoxy Adhesives

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