Large-scale fabrication of a highly flexible and transparent adhesive film embedded with elastic hybrid nanoparticles

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) Vol. 97; pp. 299 - 306
• Main Authors: Park, Yoongook, Byun, Hoyun, An, Jongil, Kim, Soyern, Lee, Jun Hyup
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.05.2021; 한국공업화학회
• Subjects: Elasticity; Hybrid nanoparticles; Optical adhesive film; Roll-to-roll coating; UV curing; 화학공학; Elasticity; Hybrid nanoparticles; UV curing; Optical adhesive film; Roll-to-roll coating
• ISSN: 1226-086X; 1876-794X
• DOI: 10.1016/j.jiec.2021.02.011

[Display omitted] •A large-scale fabrication method for flexible optical adhesive films was presented.•The embedded elastic hybrid nanoparticles afforded the excellent elastic properties.•A flexible and transparent adhesive thin film was prepared using roll-to-roll coating and UV curing process.•High optical clarity and high adhesion strength as well as excellent relaxation and recovery characteristics were achieved. A new type of highly flexible and transparent adhesive film embedded with elastic hybrid nanoparticles was fabricated using simple roll-to-roll coating and UV curing process. The elastic organic-inorganic nanoparticles comprising a hard SiO2 core and spring-like aliphatic shell were synthesized using a surface-modification reaction and then applied to acrylic adhesives. The facile and large-scale roll-to-roll coating and subsequent UV curing process produced a highly flexible optical adhesive film, wherein the elastic nanoparticles were chemically crosslinked to the acrylic resin. Compared with a conventional film, the proposed adhesive film exhibited high optical transmittance, high adhesion strength, and excellent relaxation and recovery characteristics.