Triethylenediamine, TEDA crystal

Triethylenediamine, TEDA crystal

TEDA is high-purity triethylenediamine. It is a very strong polyurethane catalyst that can be used in a variety of polyurethane applications. TEDA is used in all types of polyurethane foams including flexible slabstock, flexible molded, rigid, semi-flexible and elastomeric. It is also used in polyurethane coatings applications. TEDA catalyst accelerates the reactions between the isocyanate and water, as well as between the isocyanate and organic hydroxyl groups.
Product Details

I. Product Overview

Triethylenediamine (TEDA) is a high - purity organic amine compound with the chemical name Triethylenediamine and CAS number 280 - 57 - 9. As one of the core catalysts in the polyurethane industry, TEDA, thanks to its excellent reactivity and stability, is widely applied in the production of various polyurethane foams, coatings, and elastomers. It is an indispensable functional additive for promoting the efficient preparation of polyurethane materials in modern processes. The tertiary amine group in its molecular structure gives it extremely strong catalytic ability, enabling it to significantly improve reaction efficiency at very low addition levels, making it a key catalyst in modern polyurethane technology.

II. Core Parameter Table

IndicatorSpecificationIndustry Significance
AppearanceWhite crystalNo impurity pollution ensures the uniformity of subsequent reactions
Content (%)≥99.0High purity ensures that catalytic activity is not interfered by impurities
Water (%)≤0.5Low water content avoids hydrolysis side reactions and extends storage life
Relative density (water = 1)1.14Moderate density facilitates metering and mixing
Melting point (℃)158Good solid - state storage stability; easy dispersion after melting
Flash point (℃) (PMCC method)62.22Meets the safety standards for hazardous chemicals transportation
Boiling point (℃)174Low vapor pressure reduces volatilization loss
Packaging specification25kg/plastic drumIndustrial - grade large packaging suitable for large - scale production

III. Application Fields and Catalytic Mechanism

The core value of TEDA lies in precisely regulating the kinetics of polyurethane reactions. Its applications cover all categories of polyurethane products:

  • Foam products: In soft block foam, molded foam, rigid foam, semi - rigid foam, and elastomers, TEDA can simultaneously catalyze two key reactions:
  • Coatings and adhesives: In polyurethane coatings and sealants, TEDA can precisely regulate the crosslinking reaction rate, improve coating curing efficiency (surface drying time shortened by more than 40%) and adhesion (peel strength increased by more than 25%), ensuring the final product's wear resistance, weather resistance, and anti - aging properties.

Its catalytic essence is that the lone pair electrons of the tertiary amine group form transition state complexes with reaction intermediates, greatly reducing the activation energy and achieving an efficient and controllable catalytic process.

IV. Storage and Transportation Guidelines

To ensure the stable performance of TEDA, the following storage requirements must be strictly followed:

  1. Environmental control: Store in a dry, cool, and well - ventilated warehouse (recommended temperature 10 - 30℃), away from heat sources and direct sunlight;
  2. Container management: Each drum must be sealed for storage, regularly check the integrity of the sealing, and prevent absorption of moisture (excessive moisture will lead to attenuation of catalytic activity or even gelation side reactions);
  3. Transportation protection: Handle with care during loading and unloading to avoid packaging damage; for long - distance transportation, take measures such as rainproof and sun - proof, and strictly prohibit mixed transportation with oxidizing agents and acidic substances (to prevent chemical reactions).

V. Technical Support and Customized Services

If you encounter problems such as formula adjustment, process optimization, and cost control during use, please feel free to contact the Shijiazhuang Qihong Technical Service team! We provide:

  • Professional technical consultation: Optimization plans for TEDA dosage for specific application scenarios;
  • Sample testing services: Free small sample trial to help verify catalytic effects;
  • Customized solutions: Design exclusive catalytic schemes based on your production equipment and raw material system.

TEDA, with its high purity, strong catalysis, and wide adaptability, has become the “efficiency engine” of the polyurethane industry. Whether it is large - scale industrial production or high - end special product R&D, it can provide you with stable and reliable technical support. Choose TEDA and start an efficient manufacturing journey for polyurethane materials!


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