2-Hydroxyethyl Acrylate (2-HEA) – CAS No. 818-61-1

2-Hydroxyethyl Acrylate (2-HEA), with the chemical formula CH₂=CHCOOCH₂CH₂OH and CAS Number 818-61-1, is a functional monomer essential for synthesizing hydrophilic polymers, coatings, and adhesives through free radical polymerization.

ITEM Specification
Purity 97%min;93%min; 90%min
water 0.2%max
Color 20 max

Applications-2-HEA(2-hydroxyethyl acrylate)

Coatings and Adhesives

  • UV-Curable Coatings: Incorporated at 10-30% for flexible, scratch-resistant films on wood and plastics, enhancing adhesion and hydrophilicity.
  • Pressure-Sensitive Adhesives: 5-15% co-monomer for acrylic tapes, improving tack and peel strength on polar surfaces.

Personal Care and Cosmetics

  • Hydrogel Formulations: 2-5% in contact lens materials and hair gels for moisture retention and biocompatibility.
  • Emulsion Polymers: Stabilizer at 3-8% in lotions and sunscreens for emulsification and film-forming properties.

Medical and Industrial Uses

  • Biomedical Devices: Cross-linker in hydrogels for wound dressings, providing swellability and drug release control.
  • Textile Finishes: Reactive diluent in water-based finishes for breathable fabrics.

Why Choose Our 2-HEA(2-hydroxyethyl acrylate)?

Our 2-Hydroxyethyl Acrylate is distilled under vacuum with inhibitor levels precisely controlled (<10 ppm MEHQ), ensuring <0.1% water and color <20 APHA for crystal-clear polymers and extended stability. Coating formulators achieve 20% better adhesion and 15% faster cure times. Available in industrial and pharma grades, packaged in 200kg drums or 1000kg IBCs, with REACH, TSCA, and Kosher certifications for seamless compliance.

Frequently Asked Questions (FAQs)

What is 2-Hydroxyethyl Acrylate (2-HEA)?

2-Hydroxyethyl Acrylate (2-HEA) is a functional acrylate monomer with formula CH₂=CHCOOCH₂CH₂OH and CAS 818-61-1, used for hydrophilic polymers. It’s a reactive liquid that imparts flexibility and adhesion in coatings and adhesives.

How is 2-HEA polymerized in coatings?

Copolymerize 15-25% with butyl acrylate via emulsion polymerization at 60-80°C using persulfate initiators; it enables post-cure cross-linking with isocyanates for durability.

Is 2-HEA safe for cosmetic use?

Yes, it’s CIR-approved up to 5% in leave-on products, with low sensitization and rapid evaporation, ideal for non-irritating formulations.

What is the shelf life of 2-HEA?

In inhibitor-stabilized, inert-sealed containers below 25°C, it maintains >99% purity for 12-18 months, with minimal polymerization risk.

Can 2-HEA be blended with methacrylates?

2-HEA copolymerizes effectively with HEMA at 1:1 ratios for balanced hydrophilicity, but adjust inhibitor for viscosity control in blends.

Does 2-HEA affect polymer Tg?

It lowers glass transition by 20-30°C due to the flexible ethyl chain, enhancing low-temperature flexibility in acrylics.

What packaging options are available for 2-HEA?

We supply 200kg steel drums, 1000kg IBCs, and 20MT tankers, all nitrogen-purged for oxidation prevention and UN-compliant.

For polymerization recipes, stability data, or custom inhibition, our monomer experts provide tailored support.

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Core Product Lineup

Product Name Abbreviation CAS Number Key Properties & Uses
Methacrylic Acid MAA 79-41-4 Reactive monomer for acrylic resins; enhances hardness and chemical resistance in paints, adhesives, and textiles.
Methyl Methacrylate MMA 80-62-6 Clear liquid for PMMA (Plexiglas®-like sheets); ideal for optical lenses, signage, and injection-molded parts with high impact strength.
Hydroxyethyl Methacrylate HEMA 868-77-9 Hydrophilic monomer for hydrogels; excels in contact lenses, dental composites, and drug delivery systems for biocompatibility and flexibility.
Hydroxypropyl Methacrylate HPMA 27813-02-1 Flexible hydroxy monomer; boosts moisture resistance in coatings, nail polishes, and flexible adhesives.
Hydroxyethyl Acrylate HEA 818-61-1 Fast-reacting acrylate; used in waterborne emulsions for textiles, paper coatings, and pressure-sensitive adhesives.
Hydroxypropyl Acrylate HPA 25584-83-2 Dual-functional for UV-curable systems; enhances adhesion and elasticity in sealants, wood finishes, and personal care thickeners.

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