DETDA,which is a kind of light yellow to amber transparent liquid, is a very effective polyurethane elastomer chain expansion agent,equivalent to Ethancure-100.

Chemicals Technical Data Sheet

 

English name：Diethyltoluenediamine(DETDA)

Nick name：Diethyl Methyl Benzene Diamine

CAS NO：68479-98-1

EINECS NO：270-877-4

UN NO：3082

Transport hazard class (es)：9

Packing group, if applicable：III

Similar products: U.S AIbemarle (Ethacure 100), Swiss Lonza group (DETDA 80), Germany Nitroil (ADA L80 PCAmine)

• Physical and chemical properties：

Light yellow to amber transparent liquid, slightly soluble in water, soluble in alcohol, ether, ketone and other polar organic solvents, with polyether, polyester polyol compatibility is good.

Property	Result
Molecular formula	C11H18N2
Structural formula
Molecular weight	178.28
Melting point/ freezing point °C	-9
Initial boiling point °C	308 (1013 hPa)
Self-ignition temperature °C	420 (1013 hPa)
Relative density g/cm3 at 25 °C	1.02
Flash point °C	135
Vapour pressure	0.000971 Pa (25°C) 0.00391 Pa (35°C)
Isocyanate equivalent	89.5
Ethoxyline resin equivalent	44.3

 

• Standard value：

Property	Result
Viscosity（20°C）	280
Viscosity（25°C）	155
Diethyltoluenediamine	≥ 98% (Q/370781YXHG001-2015)
2,4-isomer	75.0 - 81.0%
2,6-isomer	18.0 - 20.0%
Other alkyl amine	0.5 - 3.0%
Amine value (mg KOH/g)	615 - 635
TDA Assay	≤ 0.1%
Water content	≤ 0.1%

 

• Uses and applications：

DETDA is a very effective polyurethane elastomer chain expansion agent, especially for the RIM (reaction injection molding) and SPUA (spray polyurea elastomer); also can be used as polyurethane elastomer and epoxy resin aromatic diamine curing agent, used for casting, coating, RIM and adhesive, but also is a polyurethane and polyurea elastomer chain extension agent.

DETDA is a type of aromatic diamine, ethyl and methyl groups, which makes the activity of is much lower than that of TDA. The reaction rate with polyurethane prepolymer several times faster than DMTDA, about 30 times faster than MOCA. Mainly used in RIM polyurethane system and spray polyurethane (polyurea) elastomer coating system, with a fast reaction rate, short release time, high initial strength, product resistance to hydrolysis, heat and so on. In addition to the product can also be used as elastomer, lubricants and industrial oil antioxidant, and chemical intermediates.

 

• Packaging and transport：

Packaging for 1000KG/IBC barrels, 200kg drums or ISOTANK, the special packaging in accordance with the requirements of customers.

 

5. Storage：

Stacked in a cool/ dry/ ventilated place, keep away from heat/ fire, to prevent the direct sunlight, to avoid high temperature, do not sharp object collision damage.

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