2-Ethylhexyl Acrylate (2-EHA) Monomer
Número CAS: 103-11-7
2-Ethylhexyl Acrylate (2-EHA) is a key soft monomer for acrylic emulsion polymerization, supplied at ≥99% purity with a homopolymer Tg of –70°C. It imparts flexibility, tackiness, and low-temperature performance to copolymer latexes and is typically incorporated at 20–50% of the monomer blend alongside MMA or styrene to achieve target film properties. Primary applications include pressure-sensitive adhesives (PSA), exterior architectural coatings, leather finishing emulsions, and paper coatings.
Especificaciones Técnicas
| purity | ≥99.0% |
| acid value | ≤0.05 mg KOH/g |
| homopolymer Tg | –70°C |
| inhibitor MEHQ | ≤15 ppm |
Aplicaciones
- Pressure-sensitive adhesive (PSA) emulsions
- Exterior architectural paint binders
- Leather finishing emulsions
- Paper and board coating latexes
- Nonwoven fabric bonding adhesives
Características Principales
- 2-Ethylhexyl Acrylate delivers the lowest Tg (–70°C) among common acrylic monomers for maximum softness and tack
- Excellent hydrophobicity reduces water sensitivity and improves outdoor durability of latex films
- High purity ≥99% minimizes gel formation and ensures consistent copolymerization behavior
- Compatible with HEA, GMA, DAAM functional monomers for crosslinkable PSA formulations