The effects of two nonreactive conventional-type resins, a bisphenol-Abased phenoxy resin PAPHEN-301 and aromatic-based PETROLEUM RESIN, on the mechanical, thermal, and physical properties of methacrylated urethane resin-based UV-curable formulations were studied. A methacrylated urethane prepolymer
A study of monomer's effect on adhesion strength of UV-curable resins
✍ Scribed by Tzu Hsuan Chiang; T.-E. Hsieh
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 334 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0143-7496
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✦ Synopsis
This work studies the effects of the monomer types, the number of hydroxyl functional groups (-OH) on polyol monomers, and the equivalent weight ratio of dicycloaliphatic epoxide to polyol for cationic polymerization (the R value) on the adhesion strength of UVcurable epoxy resins applied to organic light-emitting device (OLED) packaging. It was found that the volume shrinkage of resins after UV curing is related to the crosslinking density of the resin. The smallest volume shrinkage implied the highest adhesion strength of resin on glass substrate since the internal stress was minimized. This study observed that the resin containing polyol monomer is able to achieve the smallest degree of shrinkage (1.72%) and the highest adhesion strength (153.35 kg/cm 2 ) on glass substrate.
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