DIETHYLENE GLYCOL, DEG, ไดเอทิลีนไกลคอล, ไดเอทธิลีนไกลคอล, ดีอีจี
ไดเอทิลีนลีนไกลคอล (ดีอีจี), ไดเอทธิลีนไกลคอล,
Diethylene glycol (DEG) หรือ ไดไกลคอล (Diglycol) ขนาดบรรจุ 225 kg/drum, ไดเอทิลีนไกลคอล (diethylene
glycol) อาจเรียกว่า หรือ ไดไฮดรอกซีไดเอทิลอีเทอร์ (Dihydroxydiethyl
ether) หรือ ไดไกลคอล (diglycol) หรือ 2,2,'-ออกซีบิส-เอทานอล (2,2'-oxybis-ethanol) หรือ 2,2'-
ออกซีไดเอทานอล (2,2'-oxydiethanol) ไดเอทิลีนไกลคอล
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Diethylene glycol (DEG) is an
organic compound with the formula (HOCH2CH2)2O. It is a colorless, practically
odorless, poisonous, and hygroscopic liquid with a sweetish taste. It is
miscible in water, alcohol, ether, acetone, and ethylene glycol.[1] DEG is a
widely used solvent. It can be a contaminant in consumer products; this has
resulted in numerous epidemics of poisoning since the early 20th
century.Diethylene glycol is used in the manufacture of unsaturated polyester
resins, polyurethanes, and plasticizers.[1] DEG is used as a building block in
organic synthesis, e.g. of morpholine and 1,4-dioxane. It is a solvent for
nitrocellulose, resins, dyes, oils, and other organic compounds. It is a
humectant for tobacco, cork, printing ink, and glue.[5] It is also a component
in brake fluid, lubricants, wallpaper strippers, artificial fog solutions, and
heating/cooking fuel.[1] In personal care products (e.g. skin cream and
lotions, deodorants), DEG is often replaced by selected diethylene glycol
ethers. A dilute solution of diethylene glycol can also be used as a coolant;
however, ethylene glycol is much more commonly used. Most ethylene glycol
antifreeze contains a few percent diethylene glycol, present as an inadvertent
byproduct of ethylene glycol production.
Diethylene glycol (DEG) is a
valuable chemical intermediate used in the production of unsaturated polyester
resins (UPR), plasticizers, acrylate and methacrylate resins and urethanes.
Applications for Diethylene
Glycol:
Polyester Resins
Antifreeze and Coolants
Gas Dehydration and Treating
Chemical Intermediates
Heat Transfer Fluids
Solvents
Other Applications
Polyester Resins
Ethylene glycols are used as a
reactant in the manufacture of polyester resins. Dow produces ethylene glycols
for use in polyester fiber, films and polyethylene terephthalate (PET) resin
production, as well as alkyd resins used in paints. The uses for polyester
resins are extremely varied, and include boat and marine, construction
materials, automotive and aircraft bodies, luggage, furnishings, appliances,
textiles and packaging.Polyester fibers are commonly found in textile
applications including clothing and carpets.Polyester films are frequently used
in packaging and wraps for consumer goods, as well as video, audio and computer
tapes. PET is widely used in the manufacturing of beverage bottles and
containers, and other consumer goods packaging.
Antifreeze and Coolants
Ethylene glycols remain viscous at
low temperatures; they have a low freezing point and high boiling point.
Ethylene glycols are frequently used to make automobile antifreeze and
coolants, aircraft anti-icing and deicing materials.
Gas Dehydration & Treating
Ethylene glycols are commonly used
in natural gas hydration and treating applications to remove water and impurities.
Diethylene glycol (DEG), Triethylene glycol (TEG) and Tetraethylene glycol
(TETRA EG) have excellent hygroscopicity and low volatility. Because of these
characteristics, DEG, TEG and TETRA EG are in high demand in the natural gas
drying market.
Chemical Intermediates
Ethylene glycols including
monoethylene glycol (MEG), diethylene glycol (DEG), triethylene glycol (TEG)
and tetraethylene glycol (TETRA EG), are versatile chemical intermediates used
to produce a variety of products for commercial and industrial use:
Adhesives and coatings
Emulsifiers
Lubricants
Plasticizers
Polyurethane foams
Solvents
Silicone compounds
Thermoplastics
Unsaturated polyester resins
Heat Transfer Fluids
Monoethylene glycol (MEG),
diethleyene glycol (DEG), triethylene glycol (TEG) and tetraethylene glycol
(TETRA EG), due to their low freezing point, freezing point depressant and high
boiling point are predominantly used in heat transfer fluids.
Solvents
Diethylene glycol (DEG),
triethylene glycol (TEG) and tetraethylene glycol (TETRA EG) have excellent
solvent properties. TEG and TETRA EG are used as solvents in several
applications:
Aromatic and paraffinic
hydrocarbons separations
Cleaning compounds
Cyanoacrylate and
polyacrylonitrile
Polyethylene terephthalate (PET) production
equipment cleaning
Steam-set printing inks
Other Applications
Triethylene glycol (TEG) and
tetraethylene glycol (TETRA EG) may be used directly as a plasticizer or
modified by esterification. As a plasticizer, TEG and TETRA EG are used in the
manufacture of:
Safety glass
Separation membranes (silicone
rubber, polyvinyl acetate, cellulose triacetate)
Ceramic materials (resistant
refractory plastics, molded ceramics)
Demand for tetraethylene glycol is
strong in the area of BTX (benzene, toluene, xylene) extraction to separate
aromatic hydrocarbons from non-aromatic hydrocarbons.
Monoethylene glycol (MEG),
diethylene glycol (DEG) are often used in water-based paints, dry-wall
compounds, glass cleaners, dyes, waxes and adhesives as a freezing point depressor
to avoid damage by low-temperature extremes.
In addition, monethylene glycol
and diethylene glycol are also used as binders for foundry sand molding, and a
lubricant for glass- and cement-grinding. In addition, both homologs are also
used as humectants in textile fiber, paper, leather, adhesive and glue
applications.
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034496284
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034496285
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Website :
www.thaipolychemicals.com
Email1 : thaipolychemicals@hotmail.com
Email2 : info@thaipolychemicals.com
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