Preparation and Characterization of Acrylic Pressure-Sensitive Adhesives Crosslinked with UV Radiation-Influence of Monomer Composition on Adhesive Properties

Abstract

In this study, syntheses of acrylate copolymers were performed based on the monomers butyl acrylate (BA), 2-ethylhexyl acrylate (2-EHA), and acrylic acid (AA) and the second-type unsaturated photoinitiator 4-acryloyloxybenzophenone (ABP). The structure of the obtained copolymers was confirmed via FT-IR spectroscopic analysis, and the viscosity and the content of non-volatile substances were determined. The adhesive films were then coated and cross-linked using ultraviolet radiation in the UV-C range at various doses (5–50 mJ/cm2). Due to the dependence of the self-adhesive properties of the adhesive layer on the basis weight, various basis weights of the layer in the range of 30–120 g/m2 were tested. Finally, the self-adhesive properties were assessed: tack, peel adhesion, shear strength (cohesion) at 20 °C and 70 °C, as well as the SAFT test and shrinkage. The aim of the study was to determine the effect of the type of monomer used, the dose of ultraviolet radiation, and the basis weight on the self-adhesive and usable properties of the obtained self-adhesive tapes.

Influence of storage time on the useful properties of silicone pressure-sensitive adhesives

“…Silicone pressure-sensitive adhesives (Si-PSA) exhibit unique properties such as high flexibility of the Si-O-Si backbone, low intermolecular interactions, low surface tension, excellent thermal stability, and high UV transparency, making silicone PSA highly effective in extreme high and low temperatures, characterized by excellent electrical properties, chemical resistance, and exceptional weather resistance [3][4]. In most cases, in comparison with organic PSA, they show better performance properties.…”

Influence of Illite and Its Amine Modifications on the Self-Adhesive Properties of Silicone Pressure-Sensitive Adhesives

“…Such joints Materials 2023, 16, 2879 2 of 12 are resistant to various weather conditions (including UV radiation), chemically stable (resistant to many different chemicals and pollutants in the air) and have low flammability. Due to their electrical properties, they can be used in various electrical and electronic applications, including devices exposed to significant temperature fluctuations [4,8,9].…”

Roll-to-Roll Vapor Deposition of Hydrophobic and Transparent Nano-Adhesive Polymeric Thin Films on Rigid and Flexible Substrates

“…Acrylic PSAs are produced using different types of acrylic monomers which are polymerized to form the corresponding homo or copolymers. 4 2-Ethylhexyl acrylate, butyl acrylate, ethyl acrylate, and iso-octyl acrylate are the primary monomers used in the production of PSAs. Some functional monomers such as acrylic acid (AA) and vinyl acetate are generally used to improve adhesion and cohesion.…”

“…Due to being extremely versatile and low-cost materials, acrylate-based PSAs are widely used in diverse fields such as labeling, packaging, and so on. Acrylic PSAs are produced using different types of acrylic monomers which are polymerized to form the corresponding homo or copolymers . 2-Ethylhexyl acrylate, butyl acrylate, ethyl acrylate, and iso-octyl acrylate are the primary monomers used in the production of PSAs.…”