Kinetic and characterization of UV-curable silicone urethane methacrylate in semi-IPN-structured acrylic PSAs

Kim, Pan-Seok; Lee, Seung-Woo; Park, Ji-Won; Park, Cho-Hee; Kim, Hyun Joong

doi:10.1080/01694243.2013.763479

Cited by 4 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An interpenetrating polymer network (IPN) is a structure in which one or more cross-linked polymer networks are physically entangled without covalent bonds, and the network cannot be separated without bond cleavage [ 22 , 23 , 24 , 25 , 26 ]. UV-curable acrylic PSAs are studied because of their unique crosslinking properties that are essential to forming the IPN [ 14 , 27 , 28 , 29 ]. Kim et al investigated the adhesive properties in relation to the degree of crosslinking after the formation of an IPN structure with different acrylic polymers [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Adhesion Improvement of Solvent-Free Pressure-Sensitive Adhesives by Semi-IPN Using Polyurethanes and Acrylic Polymers

Park

Lee

Yoon³

et al. 2022

Polymers

View full text Add to dashboard Cite

To improve the peel strength and holding time of polypropylene glycol (PPG)-based pressure-sensitive adhesives (PSAs), a semi-interpenetrating polymer network (semi-IPN) was prepared using acrylic polymers. In addition, to prevent air pollution due to volatile organic compound emissions and avoid the degradation of physical properties due to a residual solvent, the PPG-based semi-IPN PSAs were fabricated by an eco-friendly solvent-free method using an acrylic monomer instead of an organic solvent. PPG-based semi-IPN PSAs with different hard segment contents (2.9–17.2%) were synthesized; their holding time was found to depend on the hard segment contents. The peel strength was improved because of the formation of the semi-IPN structure. Moreover, the high degree of hard domain formation in the semi-IPN PSA, derived from the increase in the hard segment content using a chain extender, resulted in a holding time improvement. We believe that the as-prepared PSAs can be used in various applications that require high creep resistance.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Kim et al investigated the adhesive properties in relation to the degree of crosslinking after the formation of an IPN structure with different acrylic polymers [ 28 ]. In addition, Kim et al formed a semi-IPN PSA using silicone urethane methacrylates (SiUMA) and acrylic copolymers and studied its adhesive properties [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Adhesion Improvement of Solvent-Free Pressure-Sensitive Adhesives by Semi-IPN Using Polyurethanes and Acrylic Polymers

Park

Lee

Yoon³

et al. 2022

Polymers

View full text Add to dashboard Cite

show abstract

“…After UV irradiation, the adhesive shrinks greatly in volume through the polymerization of multifunctional oligomers, resulting in a significant reduction in peel strength [24,25]. This method has outstanding advantages such as fast reaction rate, high efficiency, and low energy consumption [26][27][28][29][30]. Hao et al [31] used polyethylene glycolmodified isophorone diisocyanate oligomer (PEG-IPDI) and acrylic acid copolymer to prepare adhesionreducing adhesives.…”

Section: Introductionmentioning

confidence: 99%

The effect of surface morphology on the peel performance of UV-induced adhesion-reducing adhesives

Ren

et al. 2022

Mater. Res. Express

View full text Add to dashboard Cite

In this paper, end-hydroxy fumaryl chloride-diol copolyesters (EHFDCP) with different double bond contents were prepared by the reaction of fumaryl chloride and diols. The molecular weight of the target hydroxy polyesters was controlled to be essentially the same, EHFDCP prepared from 1,8-octanediol, 1,5-pentanediol and ethylene glycol named EHFDCP-1, EHFDCP-2 and EHFDCP-3, respectively. The UV-induced adhesion-reducing adhesives (ARA) were prepared with EHFDCP, isophorone diisocyanate (IPDI), chain extender and photoinitiator. The ARA-1, ARA-2 and ARA-3 were produced by EHFDCP-1, EHFDCP-2 and EHFDCP-3, respectively. After UV curing, all the surfaces of ARA-1, ARA-2, and ARA-3 had a high number of concave and convex areas, which helped to reduce the contact area between the adhesive and the substrate surface. The surface roughness of ARA-2 is the highest and the adhesion reduction effect is the most significant. The higher surface roughness of ARA-2 came from moderate double bond content and crosslinking density. With the increasing photoinitiator content, the 180° peel strength after UV curing decreased. The 180° peel strength of ARA-2 was reduced to 0.16 N/25mm at 4 wt% of photoinitiator content, and it also had a high initial 180° peel strength of 18.55 N/25mm due to the absence of small molecule polyfunctional monomers.

show abstract

“…In particular, acrylic PSAs have many advantages, such as excellent aging characteristics, high temperature resistance, and excellent optical transparency [2]. In addition, acrylic PSAs have the advantage that their properties can be controlled by molecular weight, structure, and functional groups [3]. Recently, interest in developing flexible displays has rapidly increased, and improving the functionality of acrylic PSAs is an emerging necessity.…”

Section: Introductionmentioning

confidence: 99%

Adhesion Performance and Recovery of Acrylic PSA with Acrylic Elastomer (AE) Blends via Thermal Crosslinking for Application in Flexible Displays

et al. 2019

View full text Add to dashboard Cite

Acrylic pressure-sensitive adhesive (PSA) is used to fix each layer of a flexible display. Acrylic PSA needs to satisfy specific elongation and recovery requirements so that reliability of the flexible display can be achieved. For this reason, we aimed to design an acrylic PSA/acrylic elastomer (AE) blend and to study how some viscoelastic and adhesion properties are influenced by the AE content into the mixed, blended system. Samples were characterized by UV–Vis spectrophotometry for transmittance, texture analysis for adhesion performances, and dynamic mechanical analysis (DMA) for recovery and viscoelasticity. When acrylic PSA/AE was simply blended, the adhesion performance changed due to the influence of the long molecular chains of AE. Based on this result, the AE content was fixed at 10 wt %, and acrylic PSA prepolymer was crosslinked at different concentrations of crosslinking agent. Peel strength and probe tack decreased as the concentration of crosslinking agent increased, as reported in previous studies. On the other hand, as the content of the crosslinking agent increased, recovery characteristics were improved. Additionally, as the content of the crosslinking agent increased, the storage modulus also increased, although the glass-transition temperature was not affected. According to these findings, we successfully proved the possibility of using AE to adjust adhesion performance and recovery of acrylic PSA for designing flexible displays.

show abstract

Kinetic and characterization of UV-curable silicone urethane methacrylate in semi-IPN-structured acrylic PSAs

Cited by 4 publications

References 12 publications

Adhesion Improvement of Solvent-Free Pressure-Sensitive Adhesives by Semi-IPN Using Polyurethanes and Acrylic Polymers

Adhesion Improvement of Solvent-Free Pressure-Sensitive Adhesives by Semi-IPN Using Polyurethanes and Acrylic Polymers

The effect of surface morphology on the peel performance of UV-induced adhesion-reducing adhesives

Adhesion Performance and Recovery of Acrylic PSA with Acrylic Elastomer (AE) Blends via Thermal Crosslinking for Application in Flexible Displays

Contact Info

Product

Resources

About