Ethylene Glycol (MEG, DEG, TEG)
[Raw Material] - Ethylene, Chlorine
[Finished Product] - Polyethylene terephthalate (PET resin), Antifreeze, Brake fluids, Lubricating oils, Ink, Cork plasticizers, Glues, Packing materials, Paint, Solvents
Glycol is grouped as below;
- Monoethylene Glycol （MEG）:
Monoethylene glycol is the simpliest divalent alcohol. It is also called ethylene glycol or just glycol.
Ethylene chlorohydrin is derived from ethylene and then hydrolyzed to form monoethylene glycol.
For industrial use, it is produced from ethylene oxide. It is a clear and sweet vicious liquid and has a hygroscopic nature. It easily melts in water and alcohol and is difficult to melt in ether. MEG is the one of the main materials of polyethylene terephthalate, alkyd resin and synthetic fiber.
- Diethylene Glycol (DEG)：
DEG is a type of glycol and is a compound that consists of two methyl glycol molecules and one H2O molecule removed from the two methyl glycol molecules.
It is a reacting by-product of ethylene glycol and a raw material for synthetic resin.
DEG is also used in antifreeze, brake fluid, lubricating oils, cork plasticizers, packing materials and paint.
It is also not flammable, does not omit toxic vapor or cause skin uptake so it is usually used for solvents.
- Triethylene glycol (TEG):
TEG is a type of glycol. It is compound that contains three molecules and is a raw material for synthetic resins.
It is flammable, does not omit toxic vapor or cause skin uptake so it is usually used for solvents.
Diethylene glycol and triethylene glycol have a higher boiling points and are stickier than monoethylene glycol.
Other characteristics are similar so it is also used as a raw material of synthetic resin.
Plastic Bottle（PET resin）
The PET resin that is used for making plastic bottles is made out of two types of materials: mono ethylene glycol, which is frequently carried by our company, and refined into terephthalic acid (PTA), 30% MEG and 70% PTA ratio.
PET resin is transparent and is a plastic that is used almost everywhere for plastic bottles, insulating material, glazed film, magnetism tape, picture film, packaging film, packing for food, drinking cups, keychain, transparent packaging (APET), synthetic fiber and general plastic containers.
Fleece is made from polyethylene terephthalate ( PE T resin), which is made from MEG.
Polyethylene terephthalate threads are used to create fleece.
The characteristics of fleece is that it is light, moisture rich and has good texture. It is also fast drying.
This thread can be made from recycled plastic bottles so it is cheap to make.
When fabricating PET resin, it is possible to mix antibacterial material into the synthetic fiber during the process and improve its ability to accept color.
More than half of the clothes in the modern world used polyethylene terephthalate.
Methyl Glycol has characteristics of low toxicity, easy to melt in water and a low melting point. It is also non-volatile, does not remain in the environment and is relatively inexpensive to make.
This is why it is used as anti-freeze in cars.