Low corrosion optically clear adhesives for conducting glass: I. Effects of <i>N</i>,<i>N</i>‐diethylacrylamide and acrylic acid mixtures on optically clear adhesives

Kuo, Chung‐Feng Jeffrey; Chen, Jiong‐Bo; Chang, Shih‐Hong

doi:10.1002/app.46277

Cited by 8 publications

(11 citation statements)

References 33 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The level selection of 2-EHA monomer content and the oligomer content proportion were based on previous work, 10 and the photoinitiator was based on the composition recommended by the manufacturer.…”

Section: Taguchi Methodsmentioning

confidence: 99%

“…8 UV polymerization is commonly used for optically clear adhesive (OCA) PSAs. 9 In previous experimental work, 10 UV curing OCAs were successfully synthesized from 2-ethylhexyl acrylate (2-EHA) and oligomer acrylic acid (AA) and N,N-dimethylacrylamide (DMA). The product showed excellent performance as PSAs, such as high peel strength and good optical properties.…”

mentioning

confidence: 99%

“…Oligomer, which consists of low-acid functional monomers, was added to enhance cohesion and reworkability. 10 The photoinitiator provides reactive species for the UV polymerization technique and affects the degree of crosslinking and conversions. 11 An acrylate-based monomer, such as 2-EHA, provides good optical and high peel strength of PSAs.…”

mentioning

confidence: 99%

See 2 more Smart Citations

A study of optimization parameters for the development of ultraviolet cured low-acid optically clear adhesive

Kuo

Yen

Lan

et al. 2019

Textile Research Journal

Self Cite

View full text Add to dashboard Cite

This study introduced multi-quality optimization using the Taguchi method combined with response surface methodology (RSM) and the particle swarm optimization (PSO) method for synthesizing pressure sensitive adhesives (PSAs) of ultraviolet curing optically clear adhesives (OCAs). The process parameters used in this study included 2-ethylhexyl acrylate (2-EHA) monomer content, the photoinitiator content and the oligomer content using N,N-dimethylacrylamide and acrylic acid. The quality responses included the peel strength, the transmittance, the haze and the refractive index. The Taguchi method was adopted because it could reduce the number of experiments and cost, as well as effectively arriving at a single optimum parameter. The results from the Taguchi method were combined with RSM and PSO to obtain a single composition that has the optimum response for all qualities. The results of the confirmation experiment showed that the optimum parameters were 80 wt% of 2-EHA content, 4.32 wt% of photoinitiator content and 45 wt% of oligomer content, which could obtain the peel strength at 720.3 g/25.4 mm, transmittance up to 97.94%, haze of only 1.93% and refractive index at 1.48. All of qualities meet the industrial requirement of OCA PSAs.

show abstract

Section: Taguchi Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

A study of optimization parameters for the development of ultraviolet cured low-acid optically clear adhesive

Kuo

Yen

Lan

et al. 2019

Textile Research Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…N-vinyl caprolactam (NVC) and N, N-dimethyl acrylamide (DMAA) are the representative monomers [24,25]. Since nitrogen atom has a high electronegativity, it can improve the cohesion and at the same time prevent the risk of corrosion by acid [26]. In the second step, the synthesized acrylic prepolymer is mixed with multifunctional acrylate as a cross-linking agent and cross-linked by UV radiation.…”

Section: Component Of Psamentioning

confidence: 99%

Pressure-Sensitive Adhesives for Flexible Display Applications

Lee¹,

Kim²,

Lee³

et al. 2020

Hybrid Nanomaterials - Flexible Electronics Materials

View full text Add to dashboard Cite

Pressure-sensitive adhesives (PSA) have been used in electronics for not only attachment of two materials but also shock absorption, thermal and electrical conductivity, electromagnetic shielding, and optical property. Optically clear adhesives (OCA) have been used as a core material for optical performance of display. In addition to basic properties of OCA such as adhesion strength, transmittance, haze, and reliability, it has required dielectric constant, gap filling, and anticorrosion according to a substrate. However, the structural and functional changes of flexible display bring challenges to OCA that protects vulnerable components such as thin-film transistor, OLED, and thin-film encapsulation by stress dispersion and adjustment of a neutral plane. At the same time, flexibility and existing properties are essential. In this chapter, the development of components and performance of OCA, and evaluation methods will be discussed.

show abstract

“…Optically clear adhesives (OCAs) have recently been applied in various industrial applications [1,2], such as the use of acrylic OCAs for color filters in liquid crystal displays [3]. Acrylic pressure-sensitive adhesives (PSAs) blended with titanium oxide [4], hafnium carboxyethyl acrylate [5], and zirconium carboxyethyl acrylate [6] have also been studied as OCAs for applications.…”

Section: Introductionmentioning

confidence: 99%

UV/UV step-curing of optically clear acrylate adhesives for mobile devices

Js¹,

Shim²,

Baek³

et al. 2019

Express Polym. Lett.

View full text Add to dashboard Cite

In order to overcome the issues of rework and height difference in the manufacturing of smart devices, UV/UV stepwise curing was conducted on acrylate-based optically clear adhesives. Photo differential scanning calorimetry was used to confirm the results of curing of samples that were processed both with and without acrylic acid, over a range of UV light exposure times for a primary curing process. The samples processed at 0.6 J/cm 2 of UV energy with and without acrylic acid showed the highest amount of residual monomers after primary curing. The amount of residual monomers observed in primary-cured samples decreased as the amount of UV light energy increased, from 0.9 to 1.5 J/cm 2. After secondary curing, only the samples cured at 0.6 J/cm 2 showed small amounts of residual monomers, while the samples exposed to other UV energies showed very few residual monomers, implying that these samples were completely cured during the secondary curing step. Adhesion properties were evaluated using peel and tack tests, while the viscoelastic properties of the samples were confirmed by dynamic mechanical analysis. Our results indicate that uniform physical properties were achieved after secondary curing. The effects of stepwise curing are demonstrated by the difference in gel fractions determined after primary and secondary curing.

show abstract

Low corrosion optically clear adhesives for conducting glass: I. Effects of N,N‐diethylacrylamide and acrylic acid mixtures on optically clear adhesives

Cited by 8 publications

References 33 publications

A study of optimization parameters for the development of ultraviolet cured low-acid optically clear adhesive

A study of optimization parameters for the development of ultraviolet cured low-acid optically clear adhesive

Pressure-Sensitive Adhesives for Flexible Display Applications

UV/UV step-curing of optically clear acrylate adhesives for mobile devices

Contact Info

Product

Resources

About