Description
TETA (Triethylenetetramine) is a versatile epoxy hardener and primary aliphatic amine curing agent widely used in epoxy resin systems. It is a medium-viscosity, slightly yellow, transparent liquid at room temperature with a strong ammonia-like odor. As a key curing agent, TETA enables rapid crosslinking of epoxy resins under ambient conditions, making it ideal for industrial and commercial applications.
Key Features & Benefits
- Fast Curing at Room Temperature : Reacts rapidly with epoxy groups (e.g., in DGEBA prepolymer systems) to shorten curing time, reducing production cycles and enabling quicker demolding.
- Primary curing agent for epoxy resins, producing durable, heat-resistant materials
- Used to formulate modified curing agents and polyamide curing systems
- Acts as a high-boiling-point solvent in epoxy formulationsVersatile Applications :
- Thermal Stability : Enhances thermal properties in cured epoxy systems, such as glass transition temperature (Tg), as shown in molecular dynamics studies
- Cost-Effective : Streamlines manufacturing processes by accelerating production timelines
Common Uses
- Industrial Epoxy Systems : Ideal for coatings, adhesives, and composite materials requiring fast curing.
- DGEBA-Based Epoxy Resins : Optimizes curing reactions in these common epoxy prepolymers, balancing reactivity and mechanical properties
- Specialty Applications : Used in modified curing agents and polyamide production for tailored epoxy formulations
Safety & Handling
- Odor : Strong ammonia-like scent; use in well-ventilated areas
- Compatibility : Works with additives like imidazolium ionic liquids, though these may slightly reduce reactivity
- Storage : Store in sealed containers to prevent moisture absorption.
Why Choose TETA?
- Speed : Accelerates production cycles without sacrificing quality.
- Reliability : Proven performance in epoxy systems for over 50 years.
- Flexibility : Adaptable for a range of industrial and specialty applications.
TECHNICAL INFORMATION
Product Name | Triethylenetetramine (TETA) |
Chemical Name | N’-[2-(2-aminoethylamino)ethyl]ethane-1,2-diamine |
CAS Number | 90640-67-8, 112-24-3 (L-TETA) |
EINECS/ELINCS No. | 203-950-6 (L-TETA) |
Molecular Weight | 146.24 (L-TETA) |
Molecular Formula | C₆H₁₈N₄ (L-TETA) |
Appearance | Clear liquid |
Assay (tetramines) | ≥ 96.0 Area% |
Color | ≤ 50 Hazen |
Water Content | ≤ 0.5 wt% |
Form | Viscous liquid |
Color | Light yellow |
Odor | Ammonical |
Explosive Properties | No |
Flammability | Not classified as a flammability hazard |
Oxidizing Properties | No |
Water Solubility | Soluble |
Solubility in Other Solvents | Acetone; Methanol |
pH (100% solution) | 13 |
Melting Point/Freezing Point | <-20 °C (at 1013 hPa) |
Boiling Point/Range | 274.6 °C (at 1013 hPa) |
Flash Point | 118 °C (closed cup, at 1013 hPa) |
Vapor Pressure (20°C) | 0.0035 hPa |
Relative Vapor Density (air=1.0) | 5.04 |
Density (25°C) | 971 kg/m³ |
Relative Density (25°C) | 0.971 |
Partition Coefficient (log Pow) | -2.65 (N-octanol/water, 20°C) |
Dynamic Viscosity (40°C) | 13.9-20 mPa·s |
