CAS · 868-77-9
Product Overview
2-Hydroxyethyl methacrylate is a high-purity resins supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Appearance: | Clear colorless liquid |
|---|---|
| Assay: | 97% min |
| Color: | 20 max |
| Free acid: | 0.2% max |
| Water: | 0.2% max |
| Inhibitor level: | 200 ppm ± 20 ppm |
Applications
1. Contact Lenses and Hydrogels
HEMA polymers are hydrophilic and biocompatible, making them ideal for soft contact lenses, drug delivery systems, and wound dressings.
Allows for water absorption and oxygen permeability in hydrogel-based medical materials.
2. Dental Materials
Used in dental adhesives, cements, composites, and coatings.
Enhances adhesion to enamel and dentin due to its hydrophilic and polymerizable nature.
3. Coatings and Paints
Functions as a co-monomer in UV-curable coatings, lacquers, and surface treatments.
Improves adhesion, flexibility, and water resistance in both metal and plastic coatings.
4. Adhesives and Sealants
Incorporated in acrylic adhesives to provide better wetting properties, cohesive strength, and substrate adhesion.
Suitable for use in automotive, construction, and electronics industries.
5. Printing Inks and Photopolymers
Used in UV-curable inks, photoresists, and 3D printing resins.
Offers fast curing, good pigment dispersion, and mechanical strength.
6. Textile and Paper Treatments
Imparts softness, hydrophilicity, and improved printability in specialty textile and paper finishes.
Benefits
Excellent Reactivity: Readily undergoes free radical polymerization, alone or with other acrylic monomers.
Hydrophilic Nature: Enhances water absorption and biocompatibility in hydrogels and medical devices.
Good Adhesion: Strong bonding to various surfaces, including metals, ceramics, plastics, and natural tissues.
Mechanical Enhancement: Improves flexibility, toughness, and durability of polymers.
UV-Curable: Suitable for fast, solvent-free curing systems, reducing VOC emissions.
Versatile Compatibility: Copolymerizes well with MMA, BA, styrene, acrylic acid, and more.
Conclusion
2-Hydroxyethyl methacrylate (HEMA, CAS 868-77-9) is a versatile and widely used monomer, prized for its reactivity, hydrophilicity, and adhesion-enhancing properties. It plays a key role in the production of contact lenses, dental materials, coatings, adhesives, and UV-curable systems. With excellent copolymerization behavior and compatibility across industries, HEMA remains a cornerstone of modern functional polymer and biomedical material development.
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