Effects of monomer functionality on physical properties of 2-ethylhexyl acrylate based stretchable pressure sensitive adhesives

Lee, Ju Hak; Myung, Min Hoon; Baek, Myung Jin; Kim, Hak-Sun; Lee, Dong Woog

doi:10.1016/j.polymertesting.2019.03.033

Cited by 35 publications

(23 citation statements)

References 16 publications

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“…test. A practically identical hysteresis loss over the cycles (0.219 ± 0.014 J/cm 3 , except in the 1st cycle) reflects its elastomerlike behavior [13].…”

Section: Stress Relaxation and Repetitive Cycle Testsmentioning

confidence: 81%

“…Fig. 1(d) shows the peel adhesion of the PSAs at different chemical compositions; 5AA and 7AA exhibit almost zero peel adhesion, whereas 1AA and 3AA exhibit a high peel adhesion at~13.8 N/ 25 mm, which is approximately 65% higher than that of the widely used 'Scotch tape' (8.34 N/25 mm) (PK65 48 × 40 transparent, 3 M, USA) [13].…”

Section: Characterization Of the Psasmentioning

confidence: 96%

“…For the repetitive cycle test, the specimens were subjected to 25% strain at a crosshead speed of 500 mm min −1 . Hysteresis loss was calculated by performing the numerical integration of the area between the loading and unloading curves [13].…”

Section: Stress Relaxation and Repetitive Cycle Testsmentioning

confidence: 99%

“…Therefore, the physical properties of acrylic PSAs have been intensively investigated for their utilization in stretchable and flexible displays [5,7,13]; the results revealed a tradeoff relationship between peel adhesion and strain reversibility, which is related to flexibility or stretchability. Some researchers proposed ultraviolet (UV) patterning as a strategy to optimize the recovery and relaxation of the PSAs used in flexible display applications [5].…”

Section: Introductionmentioning

confidence: 99%

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Stretchable and recoverable acrylate-based pressure sensitive adhesives with high adhesion performance, optical clarity, and metal corrosion resistance

Lee

Park

Myung

et al. 2021

Chemical Engineering Journal

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In the era of the Internet of Things, digital displays play a critical role in human-machine interfaces. In particular, displays applied to contemporary devices such as flexible smart watches and foldable/rollable electronics underline the need for pertinent materials and device technologies to fulfill their designed functions. However, despite the technical advancements of electronic components such as stretchable/flexible electrodes and flexible backplanes, their proper assembly remains a challenge. Herein, we report the compositional effect of acrylic acid (AA) on the physical properties of as-synthesized pressure sensitive adhesives (PSAs), especially on their adhesion performance in terms of wettability and peel adhesion. Accordingly, an empirical criterion for intimate wetting is proposed based on the storage modulus of the PSAs. In this study, the PSA with the best adhesion performance was evaluated for its viscoelastic properties and suitability for specific applications. The results demonstrated the strain-dependent conformational recovery of the adhesive; the implementation of the prestrain strategy enables rapid strain reversibility at 25% of the total strain. Furthermore, the AA-incorporated PSAs exhibited remarkable metal corrosion resistance as well as high optical clarity. Thus, this fundamental study of stretchable PSAs can provide useful guidance for the development of advanced PSAs that can be used in a wide range of applications involving display devices.

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“…test. A practically identical hysteresis loss over the cycles (0.219 ± 0.014 J/cm 3 , except in the 1st cycle) reflects its elastomerlike behavior [13].…”

Section: Stress Relaxation and Repetitive Cycle Testsmentioning

confidence: 81%

Section: Characterization Of the Psasmentioning

confidence: 96%

Section: Stress Relaxation and Repetitive Cycle Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Stretchable and recoverable acrylate-based pressure sensitive adhesives with high adhesion performance, optical clarity, and metal corrosion resistance

Lee

Park

Myung

et al. 2021

Chemical Engineering Journal

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“…However, the most common photo polymerization method is film photopolymerization (radical or cationic), for example photopolymerization of acrylates, epoxides, vinyl ethers. This type of photopoly merization is mainly used for cross-linking of polymeric materials, such as: varnishes, hydrogels, dental fillings, printing inks and adhesives [8][9][10][11][12][13]. Photopolymerization in film is extremely effective, especially radical photopoly merization of multifunctional monomers and oligomers is very fast -in seconds, with the help of light, a viscous liquid turns into a solid.…”

Section: Wpływ Fotoinicjatorów Na Właściwości Poliakrylanowych Syropów I Klejów Samoprzylepnychmentioning

confidence: 99%

Influence of radical photoinitiators on features of polyacrylate syrups and self-adhesives

Gziut

Kowalczyk

2020

Polimery

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Pressure-sensitive adhesives (PSAs) were prepared via UV-irradiaton of an acrylic syrups with reactive diluent (functional diacrylate) and photoinitiator. The acrylic syrups were received via free radical bulk polymerization process (FRBP) and influence of radical photoinitiator (α-hydroxyketones, acylphosphine oxides or mixtures thereof) was investigated. It was revealed that the mixture of bisacylphosphine oxide (Omnirad 819) and α-hydroxyketone (Omnirad 184) was the most effective in FRBP (the highest monomer conversion), but preferable features of acrylic syrups (viscosity and molecular weight of copolymers) and self-adhesive properties of PSAs (especially cohesion) was achieved due to α-hydroxyketones using.

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Tailoring Pressure Sensitive Adhesives with H₆XDI‐PEG Diacrylate for Strong Adhesive Strength and Rapid Strain Recovery

Park

Lim

Lee

et al. 2023

Adv Funct Materials

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The development of flexible electronic technology has led to convenient devices, including foldable displays, wearable, e‐skin, and medical devices, increasing the need for flexible adhesives that can quickly recover their shape while connecting the components of the device. Conventional pressure sensitive adhesives (PSAs) can improve recoverability via crosslinking, but often have poor adhesive strength. In this study, new types of urethane‐based crosslinkers are synthesized using m‐xylylene diisocyanate (XDI) or 1,3‐bis(isocyanatomethyl)cyclohexane (H6XDI) as a hard segment, and poly(ethylene glycol) (PEG) group as a soft segment. The PSA with the synthesized H6XDI‐PEG diacrylate (HPD) demonstrates a significantly improved recoverability compared to XDI‐PEG diacrylate and a conventional crosslinker 1,6‐hexanediol diacrylate (HDDA) while maintaining high adhesion strength (≈25.5 N 25 mm−1). The excellent recovery property of the PSA crosslinked with HPD is further confirmed by 100k folding tests and 10k multi‐directional stretching tests exhibiting high folding and stretching stability. PSA with HPD also shows high optical transmittance (> 90%) even after 20% straining, suggesting its applicability in fields that simultaneously require high flexibility, recoverability, and optical clarity such as foldable displays.

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Effects of monomer functionality on physical properties of 2-ethylhexyl acrylate based stretchable pressure sensitive adhesives

Cited by 35 publications

References 16 publications

Stretchable and recoverable acrylate-based pressure sensitive adhesives with high adhesion performance, optical clarity, and metal corrosion resistance

Stretchable and recoverable acrylate-based pressure sensitive adhesives with high adhesion performance, optical clarity, and metal corrosion resistance

Influence of radical photoinitiators on features of polyacrylate syrups and self-adhesives

Tailoring Pressure Sensitive Adhesives with H₆XDI‐PEG Diacrylate for Strong Adhesive Strength and Rapid Strain Recovery

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Effects of monomer functionality on physical properties of 2-ethylhexyl acrylate based stretchable pressure sensitive adhesives

Cited by 35 publications

References 16 publications

Stretchable and recoverable acrylate-based pressure sensitive adhesives with high adhesion performance, optical clarity, and metal corrosion resistance

Stretchable and recoverable acrylate-based pressure sensitive adhesives with high adhesion performance, optical clarity, and metal corrosion resistance

Influence of radical photoinitiators on features of polyacrylate syrups and self-adhesives

Tailoring Pressure Sensitive Adhesives with H6XDI‐PEG Diacrylate for Strong Adhesive Strength and Rapid Strain Recovery

Contact Info

Product

Resources

About

Tailoring Pressure Sensitive Adhesives with H₆XDI‐PEG Diacrylate for Strong Adhesive Strength and Rapid Strain Recovery