TEDA Catalyst: Properties, Applications and Supplier Guide
The TEDA catalyst, known chemically as triethylenediamine (CAS 280-57-9), is essential in polyurethane foam production. Triethylenediamine acts as a catalyst, accelerating both gelling and blowing reactions. MOFAN TEDA stands out as a high-performance catalyst, offering crystalline purity for flexible, rigid, and semi-flexible foams, along with coatings. Industry professionals and newcomers benefit from understanding its properties and supplier options.
Environmental impacts of triethylenediamine include:
- Amine-based catalysts reduce toxicity compared to tin compounds.
- They emit volatile organic compounds and may contaminate groundwater.
- New bio-based catalysts aim to improve biodegradability.
Key Takeaways
TEDA catalyst accelerates reactions in polyurethane foam production, improving efficiency and foam quality.
Choose high-purity TEDA from reliable suppliers to ensure consistent results and optimal foam properties.
Proper handling and storage of TEDA catalyst are crucial for safety and maintaining product effectiveness.
Blending TEDA with other catalysts can enhance foam performance and reduce common production defects.
Understanding the properties and applications of TEDA helps manufacturers optimize their foam formulations.
TEDA Catalyst Properties
Chemical Structure
Triethylenediamine is a small organic molecule that belongs to the amine family. It is often used as a polyurethane amine catalyst. The structure consists of six carbon atoms and twelve hydrogen atoms, joined with two nitrogen atoms. This arrangement gives the molecule its unique reactivity in foam production. The chemical formula and molecular weight are shown in the table below:
| Property | Value |
|---|---|
| Chemical Formula | C6H12N2 |
| Molecular Weight | 112.17 g/mol |
Triethylenediamine acts as a bridge between isocyanate and polyol components. It helps initiate the reactions that form polyurethane foam.
Physical Characteristics
Triethylenediamine appears as a white crystalline or light yellow solid. It is highly soluble in water, which makes it easy to mix into polyurethane formulations. The melting point ranges from 156 to 160 °C, and the boiling point is 174 °C. These properties allow the catalyst to remain stable during foam production. The purity of MOFAN TEDA is at least 99.50%, ensuring consistent results in manufacturing. The product is usually packaged in 25 kg drums, but custom packaging is available for different needs.
| Property | Value |
|---|---|
| Appearance | White/light yellow crystalline solid |
| Melting Point | 156-160 °C |
| Boiling Point | 174 °C |
| Solubility in Water | Excellent |
| Purity (%) | 99.50 min. |
| Packaging | 25 kg drums or customized |
Triethylenediamine’s solubility and high purity make it suitable for a wide range of polyurethane applications.
Performance in Polyurethane Foam Production
Triethylenediamine is a key catalyst in polyurethane foam production. It accelerates both gelling and blowing reactions. The gelling reaction links isocyanate and polyol molecules, forming the foam’s structure. The blowing reaction creates gas bubbles, which expand the foam. Triethylenediamine provides rapid reactivity, with cream times of 3-5 seconds and rise times of 30-40 seconds. This speed is important for molded foam applications. The catalyst improves load-bearing capacity and balances skin thickness with core softness. It works well with both polyether and polyester polyols, preventing phase separation. Triethylenediamine is cost-effective, making it a popular choice for high-volume polyurethane production.
Common issues in foam production include collapse, splitting, surface imperfections, density variations, and closed cells. Triethylenediamine helps address these problems by providing balanced activity. For example, increasing the gelling catalyst can prevent collapse, while optimizing mixing and temperature control can reduce density variations.
Tip: Blending triethylenediamine with other amine catalysts, such as MOFAN A1, can enhance cost-performance and foam quality.
Safety and Handling
Triethylenediamine is classified as a flammable solid. It can cause skin irritation and serious eye damage. Safe handling is essential in industrial settings. The following precautions help protect workers and maintain product quality:
- Wear tightly fitting safety goggles and gloves made of nitrile rubber.
- Use a complete suit that protects against chemicals.
- Avoid inhaling vapors or mist.
- Keep containers tightly closed.
- Store in a dry, cool, and well-ventilated area, preferably in steel containers outdoors.
- Keep away from heat sources and oxidizers.
If exposure occurs, move to fresh air, wash skin with soap and water, and rinse eyes for at least 15 minutes. Do not induce vomiting if swallowed. For fires, use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide. Always consult a physician for first aid.
Note: Proper storage and handling of triethylenediamine ensure safety and maintain the catalyst’s effectiveness in polyurethane foam production.
Applications in Polyurethane Foam
Types of Polyurethane Foam
Triethylenediamine is widely used in the manufacturing of different polyurethane foams. Flexible polyurethane foams are common in furniture, bedding, and automotive seating. Rigid polyurethane foams are used for insulation panels, refrigerators, and construction materials. Semi-flexible foams serve in automotive interiors and packaging. Elastomeric foams are found in shoe soles and industrial gaskets. MOFAN TEDA demonstrates versatility by performing efficiently in all these applications. The catalyst also supports polyurethane coatings, which protect surfaces and enhance durability.
Manufacturers select triethylenediamine for its ability to adapt to various foam types. The catalyst ensures consistent cell structure and mechanical properties. This adaptability makes it a preferred choice for both high-resilience foam and conventional foam production.
Role of TEDA Catalyst in Foam Quality
Triethylenediamine acts as a polyurethane amine catalyst. It accelerates both the gelling and blowing reactions during foam production. The gelling reaction links isocyanate and polyol molecules, forming the foam’s structure. The blowing reaction creates gas bubbles, expanding the foam and determining its density.
TEDA catalyst provides dual acceleration, which allows better control over curing. This control influences the foam’s cell structure and mechanical properties. Manufacturers achieve high-quality foams with improved load-bearing capacity and balanced skin thickness and core softness. Triethylenediamine works well with both polyether and polyester polyols, preventing phase separation and ensuring uniform foam quality.
The catalyst is essential for producing flexible, rigid, and semi-flexible polyurethane foams. It helps optimize foam properties for specific applications. For example, high-resilience foam benefits from enhanced elasticity and comfort, while rigid polyurethane foams gain improved insulation and strength.
Tip: Using triethylenediamine in foam formulations helps prevent common defects such as collapse, splitting, and density variations.
Usage Levels and Process Integration
Triethylenediamine is integrated into polyurethane production lines using precise methods. Manufacturers blend the amine catalyst with other components to achieve desired foam properties. The typical usage level ranges from 0.1 to 1.0 parts per hundred parts of polyol (pphp). Optimization requires testing and trials to match the foam’s requirements.
The table below shows recommended process integration methods for different foam types:
| Foam Type | Catalyst Components | Key Features |
|---|---|---|
| High Resilience (HR) Foam | Blend of TEDA, DMCHA, and DMAEEA | Excellent elasticity and comfort; optimized for reactivity and flow. |
| Conventional Flexible PU Foam | Balanced composite catalyst system with TEDA and DMCHA | Adjusts hardness and density; fine-tuning through amine ratios for desired properties. |
| General Amine Catalyst Level | Typically ranges from 0.1 to 1.0 parts per hundred parts of polyol (pphp) | Varies based on foam properties; requires optimization through testing and trials. |
Triethylenediamine’s compatibility with various polyols allows manufacturers to fine-tune foam formulations. The catalyst supports both polyether and polyester systems, making it suitable for a wide range of polyurethane applications. MOFAN TEDA offers reliable performance and consistent results, which are important for industrial production.
Note: Proper integration of triethylenediamine ensures optimal foam quality and efficient production.
Supplier Guide for TEDA Catalyst
Criteria for Selecting Suppliers
Choosing the right supplier for triethylenediamine is important for consistent production quality. Manufacturers should look for suppliers who provide high-purity products and reliable service. The table below outlines key criteria to consider:
| Criteria | Details |
|---|---|
| Technical Specifications | Minimum purity of 99% ensures reliable reaction kinetics. Certificates of analysis (CoA) for every batch are essential. Confirm the physical form matches your dosing equipment. ISO 9001 certification is preferred. |
| Supplier Reliability | Suppliers with several years of experience offer more stability. Check their minimum order quantity and repeat order rate. Packaging in sealed drums and reliable lead times are important. |
| Cost Considerations | Calculate total cost, including logistics and storage. Look for tiered pricing for large orders. Technical support and custom blends can add value. |
Tip: Always request a certificate of analysis and verify packaging integrity before accepting shipments.
Leading Suppliers and Brands
Several companies supply triethylenediamine for polyurethane applications. MOFAN stands out as a reliable source for TEDA catalyst, offering high-performance products with consistent quality. Other notable suppliers include:
| Company Name | Location | Focus Area |
|---|---|---|
| MOFAN | China | High-purity TEDA catalyst |
| Tosoh Corporation | Tokyo, Japan | Amine catalysts for polyurethane foams |
| Shandong Dongda Chemical Industry Co., Ltd. | Zibo, China | Amine catalysts for polyurethane |
MOFAN TEDA offers advantages such as low odor, minimal fogging, and favorable environmental impact compared to other brands. These features make it a preferred choice for high-resilience foam and other demanding applications.
Sourcing and Quality Assurance
Reliable sourcing of triethylenediamine ensures smooth production. Manufacturers should evaluate supplier authenticity by checking for ISO certifications and reviewing customer feedback. Packaging options, such as 25 kg drums, help maintain product quality during transport and storage. MOFAN provides flexible packaging and technical support, which helps customers optimize their catalyst use. Always confirm the product’s batch number and request documentation for traceability.
Note: Consistent quality and strong supplier support are key to successful polyurethane foam production.
The teda catalyst plays a vital role in shaping the quality and durability of polyurethane foam products. Careful handling and thoughtful supplier selection help control gelation time and foam structure, which influence cell size and distribution. These factors support long-term performance and reduce defects. Choosing a reliable product like MOFAN TEDA ensures manufacturers achieve consistent results and high-quality foams for a wide range of applications.
FAQ
Q. What is TEDA catalyst used for?
TEDA catalyst speeds up reactions in polyurethane foam production. Manufacturers use it to make flexible, rigid, and semi-flexible foams. It also helps create polyurethane coatings for surfaces.
Q. How should TEDA catalyst be stored?
Store TEDA catalyst in a cool, dry, and well-ventilated place. Keep it away from heat and oxidizers. Use steel containers outdoors for extra safety.
Q. Is TEDA catalyst safe to handle?
TEDA catalyst can cause skin irritation and serious eye damage. Workers should wear gloves and goggles. Avoid breathing in vapors.
Always follow safety guidelines when handling chemicals.
Q. What packaging options does MOFAN TEDA offer?
MOFAN TEDA comes in 25 kg drums. Custom packaging is available for special needs.
| Packaging Type | Weight |
|---|---|
| Drum | 25 kg |
| Custom | As required |
Q. Can TEDA catalyst be used with different polyols?
Yes. TEDA catalyst works with both polyether and polyester polyols. This compatibility helps manufacturers achieve desired foam properties without phase separation.
Post time: Jul-27-2026