Photoreactive UV-Crosslinkable Pressure-Sensitive Adhesives Based on Butyl Acrylate and 4-Acryloyloxy Benzophenone Copolymers

Authors

  • Zbigniew Czech Department of Chemical Organic Technology, West Pomeranian University of Technology, Szczecin, K. Pulaskiego 10, 70-322 Szczecin, Poland
  • Agnieszka Kowalczyk Department of Chemical Organic Technology, West Pomeranian University of Technology, Szczecin, K. Pulaskiego 10, 70-322 Szczecin, Poland
  • Jagoda Kowalska Department of Chemical Organic Technology, West Pomeranian University of Technology, Szczecin, K. Pulaskiego 10, 70-322 Szczecin, Poland

DOI:

https://doi.org/10.6000/1929-5995.2012.01.02.5

Keywords:

n-butyl acrylate, 4-acryloyloxy benzophenone, acrylic copolymers, pressure-sensitive adhesives (PSA), UV-crosslinking, tack, peel adhesion, shear strength

Abstract

It has been previously shown that copolymers synthesized from n-butyl acrylate and unsaturated photoinitiator 4-acryloyloxy benzophenone can be used as pressure-sensitive adhesives (PSA). This paper presents synthesis and application of solvent-borne copolymer system for the preparation of photoreactive UV-crosslinkable acrylic pressure-sensitive adhesives comprising n-butyl acrylate/ benzophenone copolymers, characterized by molecular mass in the range of 180 000 to 480 000 Dalton. These copolymers were tacky but possessed insufficient cohesive strength after UV-crosslinking to be useful as PSA. They resulted in materials having a balance of cohesive and adhesive characteristics required of good PSA. Some of the parameters affecting the pressure-sensitive adhesive properties of the copolymer are: amount of the 4-acryloyloxy benzophenone, molecular mass of the polymeric components, UV-reactivity and properties, such as tack, peel adhesion and shear strength.

References

Benedek I. Developments in Pressure-Sensitive Products. CRC Taylor & Francis, New York 2006. DOI: https://doi.org/10.1201/9781420027525

Benedek I. Pressure-Sensitive Formulation. VSP, Utrecht 2000.

Czech Z. Crosslinking of pressure-sensitive adhesives based on acrylic. Ed. Technical University of Szczecin 1999.

Auchter G. UV-crosslinking of acrylic pressure-sensitive adhesives. Adhäsion 1993; 1-2: 14-17.

Czech Z. Einsatz von Excimerlasern in der Klebstoffchemie. Kautschuk Gummi Kunstoffe 2000; 1-2: 59-65.

Czech Z, Blum W, Herrmann F. Inventors; Lohmann GmbH & Co KG, assignee. Verfahren zur Vernetzung von Haftklebern durch Einsatz von Lasern, WO patent 94/14853, 1993.

Czech Z, Malec A. Ultraviolet and thermal initiated crosslinking of solvent-free acrylic PSA. Polish J Chem Technol 2002; 2: 5-8.

Milker R, Czech Z. Removable and repositionable pressure-sensitive adhesive products, Stick 3rd European Congress on Adhesive and Sealant Raw Materials, Nürnberg, Germany 2003; pp. 23-36.

Czech Z, Butwin A, Kabatc J, Świderska J. UV-crosslinkable acrylic pressure-sensitive adhesives for industrial application. Polym Bull 2012; 69: 71-80. http://dx.doi.org/10.1007/s00289-012-0725-y DOI: https://doi.org/10.1007/s00289-012-0725-y

Czech Z, Butwin A, Kabatc J, Świderska J, Shao L, Bai Y. Influence of selected photoinitiators type II on tack, peel adhesion and shear strength of UV-crosslinked solvent-borne acrylic pressure-sensitive adhesives used for medical applications, Polym Bull 68: 441-452. http://dx.doi.org/10.1007/s00289-011-0563-3 DOI: https://doi.org/10.1007/s00289-011-0563-3

Wabro K, Milker R, Krüger G. Haftklebstoffe und Haftklebebänder, Astorplast, Altdorf, Germany 1994.

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Published

2013-01-10

How to Cite

Czech, Z., Kowalczyk, A., & Kowalska, J. (2013). Photoreactive UV-Crosslinkable Pressure-Sensitive Adhesives Based on Butyl Acrylate and 4-Acryloyloxy Benzophenone Copolymers. Journal of Research Updates in Polymer Science, 1(2), 96–100. https://doi.org/10.6000/1929-5995.2012.01.02.5

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