What is Monoethylene Glycol (MEG) for PET Fiber?
CAS 107-21-1 Monoethylene Glycol MEG is the most common industrial diol which is used in manufacture of polyester fibre, fabrics and polyethylene terephthalate (PET) resin used for production of plastic bottles. Other industrial uses are as a coolant, heat transfer agent, antifreeze and a hydrate inhibitor in gas pipelines.
What is MEG in PET Production?
- Production Process: Monoethylene Glycol MEG combines with PTA to form polyester polymers used in fiber manufacturing.
- Role in Textiles: It serves as a key raw material for producing durable, shrink-resistant polyester fibers, filaments, and yarns.
- Characteristics: As a colorless, odorless liquid, it is essential for manufacturing high-performance yet cost-effective fabrics.
- Industrial Value: Beyond textiles, it is extensively used in antifreeze, coolants, and resin production.
CAS 107-21-1 Ethylene Glycol Properties
Ethylene glycol (C₂H₆O₂) has a simple molecular formula composed of two hydroxyl groups, which gives it a high hygroscopic capacity and miscibility with water. It has a density of 1.11 g/cm³, a boiling point of 197.3 °C and a freezing point of -12.9 °C. Its viscosity and low freezing point make it an ideal ingredient for cooling fluids. In addition, it is soluble in alcohols and acetone, but not very volatile, which favors its use in closed systems.
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