Delayed low odor amine catalyst LED-204: an ideal catalyst for a variety of polyurethane formulations
Introduction
Polyurethane (PU) materials have become one of the indispensable materials in modern industry due to their excellent physical properties, chemical stability and wide application fields. However, in the production process of polyurethane, the selection of catalysts has a crucial impact on the performance of the product, processing technology and final application effect. In recent years, with the increase of environmental awareness and the increase in consumer sensitivity to product odor, developing low-odor, efficient and environmentally friendly catalysts has become an important research direction in the polyurethane industry. This article will introduce a new type of delayed low-odor amine catalyst, LED-204, to explore its characteristics, application advantages and performance in a variety of polyurethane formulations.
1. Overview of LED-204 Catalyst
1.1 Product Introduction
LED-204 is a highly efficient, low-odor amine catalyst designed for polyurethane materials. It achieves delayed release of catalytic activity through its unique chemical structure design, thereby significantly reducing odor problems in the production process while ensuring reaction efficiency. LED-204 is suitable for a variety of polyurethane formulations, including soft foams, rigid foams, coatings, adhesives and elastomers.
1.2 Product Features
- Low Odor: The odor released by LED-204 during the reaction process is extremely low, suitable for odor-sensitive application scenarios.
- Delayed Catalysis: Through the delayed catalysis mechanism, LED-204 can better control the reaction rate and avoid local overheating or uneven reactions.
- Efficiency: Efficient catalytic effects can be achieved at a lower dosage, significantly improving production efficiency.
- Environmentality: It does not contain heavy metals and harmful substances, and complies with environmental protection regulations.
- Wide Applicability: Suitable for a variety of polyurethane formulations, with good compatibility.
2. Product parameters of LED-204
To understand the performance of LED-204 more intuitively, the following table lists its main technical parameters:
| Parameters | Value/Description |
|---|---|
| Appearance | ColorlessTo a light yellow transparent liquid |
| Density (25°C) | 0.95-1.05 g/cm³ |
| Viscosity (25°C) | 50-100 mPa·s |
| Flashpoint | >100°C |
| Amine Value | 300-400 mg KOH/g |
| odor | Extremely low |
| Solution | Easy soluble in water, alcohols and most organic solvents |
| Storage temperature | 5-35°C |
| Shelf life | 12 months |
III. The delay catalytic mechanism of LED-204
3.1 Principle of delayed catalysis
The delayed catalytic mechanism of LED-204 mainly depends on the special functional groups in its molecular structure. These functional groups are in a "dormant" state at the beginning of the reaction, and gradually release catalytic activity as the reaction temperature rises or over time. This mechanism allows LED-204 to maintain low catalytic activity at the beginning of the reaction, avoiding local overheating or bubble uneven problems caused by excessive reaction.
3.2 Advantages of delayed catalysis
- More accurate reaction control: The delayed catalytic mechanism makes the reaction rate more controllable, suitable for the production of complex shapes or large-size products.
- Reduce defects: Avoid surface defects or internal bubble problems caused by excessive reactions.
- Improving production efficiency: Reduce production cycle by optimizing reaction time.
IV. Application of LED-204 in polyurethane formulations
4.1 Soft polyurethane foam
Soft polyurethane foam is widely used in furniture, mattresses and car seats. The application advantages of LED-204 in soft foam include:
- Improve the cell structure: Through the delayed catalytic mechanism, LED-204 can form a more uniform cell structure, improving the comfort and durability of the foam.
- ReduceLow odor: Especially suitable for odor-sensitive furniture and car interiors.
4.2 Rigid polyurethane foam
Rough polyurethane foam is mainly used in the fields of building insulation, cold chain equipment and pipeline insulation. The application advantages of LED-204 in rigid foam include:
- Improve the insulation performance: By optimizing the cell structure, improve the thermal insulation performance of the foam.
- Extend operation time: The delayed catalytic mechanism makes the operation time more abundant, suitable for filling in complex shapes.
4.3 Polyurethane coatings and adhesives
In coatings and adhesives, LED-204 can provide the following advantages:
- Improving adhesion: By optimizing the reaction rate, the adhesion and wear resistance of the coating are improved.
- Reduce VOC emissions: Low odor properties help reduce emissions of volatile organic compounds.
4.4 Polyurethane elastomer
Polyurethane elastomers are widely used in soles, seals and industrial parts. The application advantages of LED-204 in elastomers include:
- Enhance mechanical properties: By optimizing the reaction process, the tensile strength and wear resistance of the elastomer are improved.
- Extend mold life: The delayed catalytic mechanism reduces thermal impact on the mold and extends the service life of the mold.
V. Comparison between LED-204 and other catalysts
To show the advantages of LED-204 more intuitively, the following table compares the performance of LED-204 with several common catalysts:
| Features | LED-204 | Traditional amine catalyst | Organotin Catalyst |
|---|---|---|---|
| odor | Extremely low | Higher | Low |
| Catalytic Efficiency | High | High | High |
| Delayed Catalysis | Yes | No | No |
| Environmental | High | in | Low |
| Applicability | Wide | Wide | Limited |
VI. Suggestions for use of LED-204
6.1 Addition amount
The recommended amount of LED-204 is 0.1%-0.5% of the total amount of polyurethane formula. The specific amount can be adjusted according to the actual formula and process conditions.
6.2 How to use
- Premix method: Premix LED-204 with other liquid components (such as polyols) in advance, and then add isocyanate to react.
- Direct Addition Method: Directly add LED-204 to the reaction system during the reaction process.
6.3 Notes
- Avoid contact with strong acids or strong alkalis.
- Storage in a cool and dry place to avoid direct sunlight.
- Mix thoroughly before use.
7. Market prospects of LED-204
With the increasing strict environmental regulations and the increase in consumer requirements for product odor, LED-204, as a highly efficient and low-odor amine catalyst, has broad market prospects. Its unique delay catalytic mechanism and wide applicability make it have important application value in many fields of the polyurethane industry. In the future, with the continuous advancement of technology, LED-204 is expected to become one of the mainstream products in the polyurethane catalyst market.
8. Summary
LED-204, as a delayed low-odor amine catalyst, has become an ideal choice for the polyurethane industry due to its excellent performance and wide application fields. Its low odor characteristics, delayed catalytic mechanism and high efficiency not only improve the quality of polyurethane products, but also meet environmental protection and consumer needs. Through the rational use of LED-204, polyurethane manufacturers can gain an advantage in the fierce market competition and contribute to sustainable development.
The above is a detailed introduction to the delayed low-odor amine catalyst LED-204. I hope that through this article, readers can have a more comprehensive understanding of the characteristics, advantages and their application value in the polyurethane industry..
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