Basic properties of the product
Chemical name and structure
Chinese name: Ethylene glycol dimethacrylate
English name: Ethylene Glycol Dimethacrylate (EGDMA)
CAS number: 97-90-5
Molecular formula: C10H14O4
Molecular weight: 198.22
Structural formula: CH2=C(CH3)COOCH2CH2OCOC(CH3)=CH2.
Physical and chemical properties
Appearance: colorless liquid.
Density: 1.051 g/mL (25℃).
Boiling point: 98-100℃ (0.67kPa).
Melting point: -20℃.
Flash point: >110℃.
Solubility: slightly soluble in water, soluble in organic solvents.
Stability: easy to polymerize, stabilizer (such as hydroquinone monomethyl ether) needs to be added.
2. Application fields
Polymer materials
Crosslinking agent: used for crosslinking reaction of acrylic polymers to improve the mechanical strength and heat resistance of materials.
Composite materials: used to prepare hydroxyapatite/polymethyl methacrylate composite materials, widely used in dental materials and orthopedic repair.
Coatings and adhesives
Photocurable coatings: used as monomers of photosensitive resins for UV-curable coatings and inks13.
Adhesives: improve the water resistance and chemical resistance of adhesives3.
Biomedicine
Cytotoxicity study: EGDMA has cytotoxicity and genotoxicity to human gingival fibroblasts (HGF) and is often used in biomedical research.
Production process and quality control
Production process
Raw materials: EGDMA is generated by condensation reaction of methacrylic acid and ethylene glycol.
Refining: Purification by distillation, adding stabilizers (such as hydroquinone monomethyl ether) to prevent polymerization.
Quality control
Purity: ≥98%.
Detection method: gas chromatography (GC) or high performance liquid chromatography (HPLC).
Packaging: 25kg barrels, 200kg barrels, or small-sized glass bottles (5mL-500mL)
Uses
1. This product is a crosslinking agent used to make resins, coatings and adhesives.
2. A raw material for preparing cancer drugs
3. Ethylene glycol dimethacrylate is mainly used in the plastic and rubber industries as a crosslinking agent for ethylene-acrylic acid copolymers, ABS, acrylic sheets, pipes, glass fiber reinforced polyester, PVC, ion exchange resins, smokeless powder coating polymerization, glazing, etc. The polymers involved in the copolymerization have increased hardness, heat resistance, weather resistance, solvent resistance and friction resistance. It is also used in artificial marble, dental materials, emulsion copolymers, papermaking, rubber peroxide hardening modifiers, adhesives, inks, and optical polymers.
Safety and Storage
Safety Information
Hazards: Flammable, irritating to skin, eyes and respiratory tract.
Protective measures: Wear protective glasses, gloves and gas mask during operation.
Storage conditions
Temperature: Refrigerate at 2-8℃, avoid light.
Stability: Stabilizer needs to be added to prevent polymerization.
