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UV Curing and Peeling Characteristics of Acrylic Coating Ink with Various Amounts of Photoinitiator, Oligomer and Talc
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  • Journal title : Applied Chemistry for Engineering
  • Volume 24, Issue 5,  2013, pp.499-506
  • Publisher : The Korean Society of Industrial and Engineering Chemistry
  • DOI : 10.14478/ace.2013.24.5.499
 Title & Authors
UV Curing and Peeling Characteristics of Acrylic Coating Ink with Various Amounts of Photoinitiator, Oligomer and Talc
Yang, Jee-Woo; Seo, Ah Young; Lee, Chul Woo;
As the usuage of tempered glass for touch panel increased rapidly with the development of industry, the amount of UV curable coating solution used to protect glass surfaces during a tempered glass manufacturing process increased as well. The UV curable coating has advantages compared to thermal curing such as shortened curing time and non-solvent. Appropriated polymer and monomer were used as an acid polymer to grant an alkali peeling ability. The monomers were 2-hydroxyl methylacrylate, 1,6-hexanediol diacrylate and dipentaerythritol hexaacrylate which have acryl groups of 1, 2, and 6, respectively. The combination of three different types of photoinhibitors were used and bisphenol A epoxy diacrylate was used as an oligomer. In this study, experiments were carried out by controlling the amount of photoinitiator, oligomer, and additive while maintaining the constant content of the acid polymer and the acrylic monomer. The changes in physical properties according to the additive content were investigated. It was found that the combination of photoinitiators was necessary to achieve the hardness above 4H and it was possible to control the delamination type of the coating film from a sheet to pieces by the addition of TPO as an initiator. The increase in oligomer contents increased the hardness and adhesiveness alongside dissection time. Talc content of 20 wt% showed the best results.
coating ink;UV-curing;alkali soluble;glass protection;acrylate ink;
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