A study on UV-curable coatings for HD-DVD: Primer and top coats

Jeong Ho Moon, Hak Soo Han, Yong Gun Shul, Do Hoon Jang, Muyng Do Ro, Du Suk Yun

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

This study relates to the development of coatings for optical discs in high-density digital versatile disc systems (HD-DVD or blue lay disk) that use a high numerical aperture of 0.85 at 405 nm wavelength and have a protective top layer over a primer layer for protection against damage and dust. Ultraviolet-curable raw materials of two acrylic monofunctional monomers ( isobornylacrylate, IBA and tetrahydrofurfurylacrylate, THFA) and two kinds of urethaneacrylate oligomers (OUMD and OUME) have been easily mixed with photoinitiators. Curing rate of these materials was characterized by FT-IR. In case of top coats, VTES (vinyltriethoxysilane) and acrylic acid were added to enhance the abrasion resistance. These two kinds of UV-curable resinous materials having no solvent were synthesized and investigated as means for making a blue ray disk having good optical and mechanical properties. In addition, dynamic characteristics including reflectivity, fluctuation of RF signal and noise level were also investigated.

Original languageEnglish
Pages (from-to)106-114
Number of pages9
JournalProgress in Organic Coatings
Volume59
Issue number2
DOIs
Publication statusPublished - 2007 May 1

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Surfaces, Coatings and Films
  • Organic Chemistry
  • Materials Chemistry

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