A study of UV-curable epoxide resins containing thermal accelerator - Tertiary amines

Tzu Hsuan Chiang, Tsung-Eong Hsien*

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The individuals of tertiary amines, including imidazole (1-amine), 1,2-dimethylimidazole (2-amine), 2,4,6-tris(dimethylamino-methyl)phenol (3-amine), 1-methylimidazole (4-amine), and 2-methylimidazole (5-amine), were added into UV-curable epoxide resins, respectively, and the effects on UV/thermal conversions, thermal properties and adhesion strengths for various types of substrates were investigated. According to the experimental results, the extent of effects of amines on physical properties was found in the order of: 3-amine > 4-amine > 1-amine > 2-amine > 5-amine. The resin with 3-amine exhibited the highest glass transition temperature (Tg = 72.3 °C) value and the lowest coefficient of thermal expansion (CTE = 70.8 ppm/°C), which also exhibited the highest adhesion strengths on various substrates, on glass (greater than 199 kg/cm2), ITO (greater than 182 kg/cm2), PET (115 kg/cm2), and stainless steel (232 kg/cm2), and possesses great potentials for advanced opto-electronic applications.

Original languageEnglish
Pages (from-to)601-612
Number of pages12
JournalReactive and Functional Polymers
Volume68
Issue number2
DOIs
StatePublished - 1 Feb 2008

Keywords

  • Adhesion strength
  • Cationic polymerization
  • Conversion
  • Tertiary amines
  • UV-curable epoxide resin

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