Ethylene Glycol Diacrylate (EGDA), known by its CAS number 2274-11-5, is a bifunctional acrylate monomer highly valued across several industrial sectors for its reactive properties. Its ability to form crosslinked polymer networks upon UV or thermal initiation makes it indispensable in applications requiring enhanced material performance. This article provides an overview of EGDA's key applications and essential handling considerations for chemists and procurement specialists aiming to source this crucial chemical component.

The chemical structure of EGDA, with its two acrylate ester groups, facilitates rapid polymerization and crosslinking. This characteristic leads to materials with superior mechanical strength, chemical resistance, and thermal stability compared to their monofunctional counterparts. Its relatively low viscosity also makes it an effective reactive diluent in many formulations.

Key Applications of Ethylene Glycol Diacrylate:

  • UV-Curable Coatings: EGDA is a staple in the formulation of UV-curable coatings for wood, plastics, paper, and metal. It contributes to fast cure times, high gloss, excellent scratch resistance, and good chemical durability. Its incorporation allows formulators to meet demanding performance requirements efficiently.
  • Adhesives and Sealants: In the realm of adhesives, EGDA's crosslinking capability enhances bond strength, durability, and resistance to environmental factors. It is used in applications requiring rapid curing and strong adhesion to various substrates.
  • Electronic Chemicals: As mentioned previously, EGDA is a component in some photoresist formulations used in the microelectronics industry. Its properties contribute to the precision and reliability needed for intricate circuit patterning. It can also be found in specialized encapsulants and dielectric materials.
  • Polymer Synthesis: EGDA serves as a crosslinking monomer in the synthesis of specialty polymers, including hydrogels for biomedical applications, resins for composite materials, and various acrylic polymers with tailored properties.

Handling and Safety Considerations

As an acrylate ester, EGDA requires careful handling:

  • Polymerization Hazard: EGDA can undergo self-polymerization, especially when exposed to heat, light, or contamination. It is typically supplied with inhibitors to prevent premature polymerization. Storage in a cool, dark place, often under refrigeration (around 4°C), is recommended.
  • Health Hazards: EGDA is classified as an irritant and sensitizer. Direct contact with skin and eyes should be avoided. Inhalation of vapors should also be minimized. Appropriate personal protective equipment (PPE), including gloves, safety glasses, and lab coats, is essential. Consult the Safety Data Sheet (SDS) for detailed hazard information and first-aid measures.
  • Ventilation: Work with EGDA in a well-ventilated area or under a fume hood to minimize exposure to vapors.

Procurement Strategy

When sourcing Ethylene Glycol Diacrylate (CAS 2274-11-5), partnering with reputable manufacturers and suppliers is crucial for ensuring product quality, safety, and consistent availability. Companies looking to buy from China can benefit from competitive pricing and economies of scale, provided they vet suppliers thoroughly and verify product specifications and safety documentation. Engaging with experienced chemical manufacturers ensures you receive a product that meets your exacting standards for performance and reliability.