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Delayed low odor amine catalyst LED-204: an ideal catalyst for a variety of polyurethane formulations

3月 12th, 2025 News

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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Tertiary amine catalyst LE-530: Provides technical support for the manufacture of high-strength polyurethane adhesives

3月 12th, 2025 News

Term amine catalyst LE-530: Provide technical support for the manufacture of high-strength polyurethane adhesives

Introduction

Polyurethane adhesives are widely used in construction, automobile, electronics, packaging and other fields due to their excellent bonding properties, chemical resistance and mechanical strength. However, the properties of polyurethane adhesives depend to a large extent on the catalyst used in their manufacturing process. As a highly efficient and environmentally friendly catalyst, the tertiary amine catalyst LE-530 provides strong technical support for the manufacture of high-strength polyurethane adhesives. This article will introduce in detail the product parameters, mechanism of action, application advantages and application cases in actual production of tertiary amine catalyst LE-530.

1. Product parameters of tertiary amine catalyst LE-530

Term amine catalyst LE-530 is a highly efficient polyurethane reaction catalyst with the following main product parameters:

parameter name parameter value
Chemical Name Term amine compounds
Appearance Colorless to light yellow transparent liquid
Density (20°C) 0.95-1.05 g/cm³
Viscosity (25°C) 50-100 mPa·s
Flashpoint >100°C
Solution Easy soluble in water and organic solvents
pH value 8.0-10.0
Storage temperature 5-30°C
Shelf life 12 months

2. The mechanism of action of tertiary amine catalyst LE-530

Term amine catalyst LE-530 mainly plays the following role in polyurethane reaction:

  1. Accelerate the reaction between isocyanate and polyol: The tertiary amine catalyst LE-530 can significantly reduce the activation energy of the reaction between isocyanate and polyol, thereby accelerating the reaction rate and shortening the reaction time.
  2. Confirmation of reaction selectivity: By adjusting the amount of catalystand reaction conditions, the selectivity of the polyurethane reaction can be controlled, thereby obtaining polyurethane products with different properties.
  3. Improving reaction uniformity: The tertiary amine catalyst LE-530 can uniformly distribute various components in the reaction system, thereby improving the uniformity and stability of polyurethane products.

III. Application advantages of tertiary amine catalyst LE-530

Term amine catalyst LE-530 has the following application advantages in the manufacture of high-strength polyurethane adhesives:

  1. High-efficiency Catalysis: The tertiary amine catalyst LE-530 can significantly increase the rate of polyurethane reaction, shorten the production cycle, and improve production efficiency.
  2. Environmental Safety: The tertiary amine catalyst LE-530 does not contain heavy metals and harmful substances, meets environmental protection requirements, and is safe to use.
  3. Excellent performance: Polyurethane adhesives made using the tertiary amine catalyst LE-530 have excellent bonding strength, chemical resistance and mechanical properties.
  4. Wide application scope: Tertiary amine catalyst LE-530 is suitable for a variety of polyurethane systems, including soft bubbles, hard bubbles, elastomers, coatings, adhesives, etc.

IV. Application cases of tertiary amine catalyst LE-530 in actual production

Case 1: High-strength polyurethane adhesive for construction

In the construction industry, high-strength polyurethane adhesives are widely used in wall insulation, roof waterproofing, floor bonding and other fields. Polyurethane adhesives made using the tertiary amine catalyst LE-530 have the following characteristics:

  • High bonding strength: Can firmly bond various building materials, such as concrete, metal, wood, etc.
  • Good weather resistance: Can maintain stable performance under harsh climate conditions.
  • Construction is convenient: It has good fluidity and operability, making it easy to construct.

Case 2: High-strength polyurethane adhesive for automobiles

In automobile manufacturing, high-strength polyurethane adhesives are used for body structure bonding, interior parts fixing, sealing, etc. Polyurethane adhesives made using the tertiary amine catalyst LE-530 have the following characteristics:

  • High mechanical strength: able to withstand vibration and impacts during driving of a car.
  • High temperature resistance: Can maintain stable performance in high temperature environments.
  • Environmental Safety: Comply with the environmental protection requirements of the automotive industry and use safety.

Case 3: High-strength polyurethane adhesive for electronics

In the electronics industry, high-strength polyurethane adhesives are used for circuit board fixation, component packaging, cable bonding, etc. Polyurethane adhesives made using the tertiary amine catalyst LE-530 have the following characteristics:

  • High insulation: It has good electrical insulation performance, suitable for packaging and fixing of electronic components.
  • Chemical resistance: It can resist the corrosion of various chemical substances and protect electronic components.
  • High-precision bonding: Can achieve accurate bonding of micro components and improve the reliability of electronic products.

V. How to use the tertiary amine catalyst LE-530

When using the tertiary amine catalyst LE-530 to make high-strength polyurethane adhesive, the following usage methods should be paid attention to:

  1. Catalytic Dosage: According to the specific polyurethane system and reaction conditions, the amount of catalyst should be adjusted reasonably, and the usual amount should be 0.1-1.0%.
  2. Reaction temperature: Control the reaction temperature between 20-80°C to avoid excessive high or low temperature affecting the reaction effect.
  3. Stirring speed: Maintain appropriate stirring speed to make the components in the reaction system evenly mix.
  4. Reaction time: According to the amount of catalyst and reaction conditions, the reaction time should be reasonably controlled to ensure the complete reaction.

VI. Storage and transportation of tertiary amine catalyst LE-530

The following things should be paid attention to during storage and transportation of tertiary amine catalyst LE-530:

  1. Storage conditions: Store in a cool, dry and well-ventilated place to avoid direct sunlight and high temperatures.
  2. Packaging Specifications: Usually packaged in 25kg or 200kg plastic buckets, and can also be customized according to customer needs.
  3. Transportation requirements: Severe vibrations and collisions should be avoided during transportation to prevent packaging from being damaged.

VII. Market prospects of tertiary amine catalyst LE-530

With the wide application of polyurethane adhesives in various fields, the tertiary amine catalyst LE-530As an efficient and environmentally friendly catalyst, it has broad market prospects. In the future, with the continuous improvement of environmental protection requirements and the continuous development of polyurethane technology, the tertiary amine catalyst LE-530 will be used in more fields to provide more powerful technical support for the manufacture of high-strength polyurethane adhesives.

Conclusion

Term amine catalyst LE-530 is an efficient and environmentally friendly polyurethane reaction catalyst and has important application value in the manufacture of high-strength polyurethane adhesives. By rationally using the tertiary amine catalyst LE-530, the performance and production efficiency of polyurethane adhesives can be significantly improved, and the application needs in different fields can be met. In the future, with the continuous advancement of technology and the continuous expansion of the market, the tertiary amine catalyst LE-530 will play a more important role in the polyurethane industry.

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Application of tertiary amine catalyst LE-530 in improving weather resistance and chemical corrosion resistance of polyurethane coatings

3月 12th, 2025 News

Application of tertiary amine catalyst LE-530 in improving the weather resistance and chemical corrosion resistance of polyurethane coatings

1. Introduction

Polyurethane coatings are widely used in construction, automobile, ship, furniture and other fields due to their excellent physical properties and chemical stability. However, with the diversification of application environments, polyurethane coatings face increasing demands in terms of weather resistance and chemical corrosion resistance. As a highly efficient catalyst, the tertiary amine catalyst LE-530 can significantly improve the performance of polyurethane coatings, especially in terms of weather resistance and chemical corrosion resistance. This article will introduce in detail the characteristics, mechanism of action of the tertiary amine catalyst LE-530 and its application in polyurethane coating.

2. Overview of LE-530, tertiary amine catalyst

2.1 Product parameters

parameter name parameter value
Chemical Name Term amine catalyst LE-530
Molecular Weight About 200 g/mol
Appearance Colorless to light yellow liquid
Density 0.95-1.05 g/cm³
Boiling point About 200°C
Flashpoint About 100°C
Solution Easy soluble in organic solvents
Storage Conditions Cool, dry, ventilated
Shelf life 12 months

2.2 Chemical structure

The chemical structure of the tertiary amine catalyst LE-530 contains multiple tertiary amine groups, which play a key catalytic role in the polyurethane reaction. The structure is as follows:

R1-N-R2
   |
   R3

Among them, R1, R2, and R3 are different organic groups, and the specific structure can be adjusted according to actual application requirements.

3. Mechanism of action of tertiary amine catalyst LE-530

3.1 Catalyzed polyurethane reaction

Term amine catalyst LE-530 mainly plays the following role in polyurethane reaction:

  1. Accelerate the reaction of isocyanate with polyol: Tertiary amine catalysts can significantly reduce the reaction activation energy, accelerate the reaction rate, and thus improve production efficiency.
  2. Control the reaction rate: By adjusting the amount of catalyst, the rate of polyurethane reaction can be accurately controlled to avoid coating defects caused by excessive or slow reaction.
  3. Improving coating performance: Tertiary amine catalysts can promote cross-linking reactions and improve the mechanical properties and chemical stability of the coating.

3.2 Improve weather resistance

Term amine catalyst LE-530 improves the weather resistance of polyurethane coatings through the following mechanisms:

  1. Enhanced Crosslinking Density: Catalysts promote crosslinking reactions, form denser network structures, reduce micropores and defects inside the coating, thereby improving weather resistance.
  2. Antioxidation effect: Tertiary amine groups have certain antioxidant ability and can delay the aging process of the coating under environmental factors such as ultraviolet rays and oxygen.
  3. Improving water resistance: The tight crosslinked structure promoted by the catalyst can effectively prevent moisture penetration and improve the water resistance of the coating.

3.3 Improve chemical corrosion resistance

Term amine catalyst LE-530 improves chemical corrosion resistance of polyurethane coatings through the following mechanisms:

  1. Enhanced Chemical Stability: The crosslinking reaction promoted by the catalyst forms a more stable chemical structure that can resist the erosion of chemicals such as acids, alkalis, and solvents.
  2. Reduce coating defects: The tight crosslinked structure reduces micropores and defects inside the coating and reduces the possibility of chemical penetration.
  3. Improving adhesion: The chemical reaction promoted by the catalyst can enhance the adhesion between the coating and the substrate and reduce coating peeling caused by chemical erosion.

4. Application of tertiary amine catalyst LE-530 in polyurethane coating

4.1 Building paint

In architectural coatings, the tertiary amine catalyst LE-530 can significantly improve the weather resistance and chemical corrosion resistance of the coating and extend the service life of the building. The specific application is as follows:

  1. Exterior wall coating: By adding the tertiary amine catalyst LE-530, exterior wall coating can better resist UVThe erosion of environmental factors such as lines, rainwater, acid rain and other environmental factors will maintain long-term beauty and protective effect.
  2. Floor Coating: Floor coatings need to have excellent chemical corrosion resistance. The tertiary amine catalyst LE-530 can significantly improve the acid, alkali and solvent resistance of the coating, and are suitable for industrial floors, garage floors and other occasions.

4.2 Automotive Paint

In automotive coatings, the tertiary amine catalyst LE-530 can improve the weather resistance and chemical corrosion resistance of the coating and extend the service life of the automobile. The specific application is as follows:

  1. Body Paint: By adding the tertiary amine catalyst LE-530, the body paint can better resist the erosion of environmental factors such as ultraviolet rays, acid rain, salt spray, etc., and maintain a long-term gloss and protective effect.
  2. Chassis coating: Chassis coating requires excellent chemical corrosion resistance. The tertiary amine catalyst LE-530 can significantly improve the acid, alkali and solvent resistance of the coating, and is suitable for automotive chassis, engine compartment and other occasions.

4.3 Marine coating

In marine coatings, the tertiary amine catalyst LE-530 can improve the weather resistance of the coating and chemical corrosion resistance, and extend the service life of the ship. The specific application is as follows:

  1. Hull Paint: By adding the tertiary amine catalyst LE-530, the hull paint can better resist the erosion of environmental factors such as seawater, ultraviolet rays, salt spray, etc., and maintain a long-term protective effect.
  2. Deck coating: Deck coatings need to have excellent chemical corrosion resistance. The tertiary amine catalyst LE-530 can significantly improve the acid, alkali and solvent resistance of the coating, and are suitable for ship decks, cabins and other occasions.

4.4 Furniture Paints

In furniture coatings, the tertiary amine catalyst LE-530 can improve the weather resistance of the coating and chemical corrosion resistance, and extend the service life of the furniture. The specific application is as follows:

  1. Wood Coating: By adding the tertiary amine catalyst LE-530, wood paint can better resist the erosion of environmental factors such as ultraviolet rays, moisture, chemicals, etc., and maintain long-term beauty and protective effect.
  2. Metal coatings: Metal coatings need to have excellent chemical corrosion resistance. The tertiary amine catalyst LE-530 can significantly improve the acid, alkali and solvent resistance of the coating, and are suitable for furniture metal parts, hardware accessories and other occasions.

5. Usage of tertiary amine catalyst LE-530Method

5.1 Addition amount

The amount of tertiary amine catalyst LE-530 should be adjusted according to the specific application requirements. It is generally recommended that the amount of addition is 0.1%-1.0% of the total amount of polyurethane coating. For specific additions, please refer to the following table:

Application Fields Suggested addition amount (%)
Building Paints 0.2-0.5
Auto paint 0.3-0.7
Ship Coating 0.4-0.8
Furniture Paints 0.1-0.4

5.2 How to use

  1. Premix: Premix the tertiary amine catalyst LE-530 and the polyol components in advance to ensure that the catalyst is fully dispersed.
  2. Reaction Control: Adjust the amount of catalyst added according to the reaction rate requirements, control the reaction rate, and avoid excessive or slow reaction.
  3. Post-treatment: After the reaction is completed, perform appropriate post-treatment, such as curing, drying, etc. to ensure that the coating performance is excellent.

6. Advantages of tertiary amine catalyst LE-530

6.1 High-efficiency Catalysis

The tertiary amine catalyst LE-530 has an efficient catalytic effect, which can significantly increase the reaction rate of polyurethane, shorten the production cycle, and improve production efficiency.

6.2 Excellent performance

The tertiary amine catalyst LE-530 can significantly improve the weather resistance and chemical corrosion resistance of polyurethane coatings, extend the service life of the coating, and reduce maintenance costs.

6.3 Environmental protection and safety

Term amine catalyst LE-530 has the characteristics of low toxicity and low volatility, meets environmental protection requirements, and is safe and reliable in use.

6.4 Affordable

The tertiary amine catalyst LE-530 has a small amount of added amount, which has significant effect, which can reduce production costs and improve economic benefits.

7. Conclusion

Term amine catalyst LE-530 is an efficient catalyst that performs excellently in improving the weather resistance and chemical corrosion resistance of polyurethane coatings. By introducing its product parameters, mechanism of action, application field and usage method in detail, this paper demonstrates the tertiary amine catalyst LE-530’s wide application prospects in polyurethane coatings. In the future, with the continuous advancement of technology, the tertiary amine catalyst LE-530 will give full play to its unique advantages in more fields to provide strong support for the development of polyurethane coatings.

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