Cationic UV-Curing Epoxy Oligomer
Cationic UV-Curing Epoxy Oligomer is an epoxy-functional resin designed for cationic photopolymerization initiated by diaryliodonium or triarylsulfonium salts. Unlike acrylate UV systems, cationic epoxy cure continues after UV exposure (dark cure), resulting in very low shrinkage, excellent adhesion to metals and glass, and outstanding chemical resistance. These systems are used in high-performance optical, electronic, and industrial UV adhesive applications requiring dimensional precision and chemical durability.
Технические характеристики
| color | ≤1 (Gardner) |
| viscosity | 500–5,000 mPa·s (25 °C) |
| appearance | Colorless to pale yellow liquid |
| waterContent | ≤0.05% |
| epoxyEquivalentWeight | 170–200 g/eq |
Области применения
- Optical component bonding (low shrinkage)
- Electronics die-attach and underfill
- Industrial UV adhesives for metal bonding
- Conformal coatings for electronics
- Microelectronics and MEMS packaging
Особенности продукта
- Very low cure shrinkage for dimensional accuracy
- Dark cure continues after UV exposure
- Excellent adhesion to metals and glass
- Outstanding chemical and solvent resistance