Diethyltoluenediamine (DETDA) CAS 68479-98-1
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Product Description
Product Details
Introduction and application
DETDA is a sterically hindered aromatic diamine. The steric hindrance of the ethyl and methyl groups makes its reactivity lower than that of toluenediamine (TDA). However, its reaction rate with polyurethane prepolymer is still about 30 times faster than that of MOCA, and several times faster than that of another aromatic diamine with a similar structure, DMTDA.
It is mainly used as a curing agent for polyurethane (polyurea) elastomers and epoxy resins.
In the field of polyurethane materials, it is mainly used for reaction injection molding (RIM) polyurethane and spray polyurethane urea systems.
It can also be compounded with slow-curing diamine chain extenders for cast polyurethane elastomers. It has the advantages of fast reaction speed, short demoulding time, high initial strength, and hydrolysis and heat resistance of the products.
It can be used in spray polyurethane (urea) elastomer coating systems to quickly form a strong, wear-resistant and corrosion-resistant protective coating. In addition, this product can also be used as a chemical synthesis intermediate, industrial lubricant, etc.
Specification
Appearance | Light yellow to amber transparent liquid |
Total content of diamine isomers % | ≥98.0 |
Moisture % | ≤0.15 |
Free amine % | ≤1.0 |
Viscosity (30°C)/mPa·s | ~155 |
Density (20°C)/g/cm3 | ~1.02 |
Amine equivalent | 87.5-90.5 |
Freezing point °C | -8 |
Flash point °C | ＞ 135 |
Packaging and storage
200kg galvanized barrel, special packaging is also available upon request.
Store in a cool and dry place in a sealed container. If stored for too long or in a light environment, the color will become darker, but it generally does not affect the reaction activity.
Shelf life is 2 years. If stored beyond the shelf life, it can still be used after the main application indicators are tested and qualified.
Keyword:
DETDA
CAS 68479-98-1
Diethyltoluenediamine
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