Exploration of the unique advantages of polyurethane gel amine catalyst 33LV in extending opening time
Introduction
Polyurethane materials are widely used in construction, automobile, furniture, shoe materials and other fields due to their excellent physical properties and chemical stability. In the production process of polyurethane products, the selection of catalysts has a crucial impact on the performance and production efficiency of the product. As a highly efficient catalyst, polyurethane gel amine catalyst 33LV has attracted widespread attention due to its unique advantages in extending opening time. This article will discuss in detail the characteristics of 33LV catalysts, product parameters and their advantages in extending opening hours.
1. Overview of polyurethane gel amine catalyst 33LV
1.1 Basic concepts of catalysts
Catalytics are substances that can accelerate the rate of chemical reactions but do not undergo chemical changes on their own before and after the reaction. In polyurethane reaction, the function of the catalyst is to accelerate the reaction between isocyanate and polyol, thereby shortening the curing time and improving production efficiency.
1.2 Characteristics of 33LV catalyst
33LV catalyst is a gel amine catalyst with the following characteristics:
- High efficiency: Can significantly accelerate the polyurethane reaction and shorten the curing time.
- Stability: Stable performance during storage and use, and is not easy to decompose.
- Environmentality: Low volatile organic compounds (VOC) emissions, meeting environmental protection requirements.
- Verious: Suitable for a variety of polyurethane systems, such as soft bubbles, hard bubbles, elastomers, etc.
2. Product parameters of 33LV catalyst
2.1 Physical Properties
| parameter name | Value/Description |
|---|---|
| Appearance | Colorless to light yellow liquid |
| Density (25℃) | 0.95-1.05 g/cm³ |
| Viscosity (25℃) | 50-100 mPa·s |
| Flashpoint | >100℃ |
| Solution | Easy soluble in water, alcohols, and ketone solvents |
2.2 Chemical Properties
| parameter name | Value/Description |
|---|---|
| Active Ingredients | Gelamine compounds |
| pH value (1% aqueous solution) | 9.0-11.0 |
| Storage Stability | 12 months (below 25℃) |
2.3 Recommendations for use
| parameter name | Value/Description |
|---|---|
| Additional amount | 0.1-1.0% (based on polyol weight) |
| Applicable temperature | 20-80℃ |
| Applicable System | Soft bubbles, hard bubbles, elastomers, etc. |
III. Advantages of 33LV catalysts in extending opening time
3.1 Definition of Opening Hours
Open Time refers to the time from the time when the polyol and isocyanate are mixed until the mixture loses fluidity or cannot be processed. The length of opening time directly affects production efficiency and product quality.
3.2 Mechanism for extended opening time of 33LV catalyst
33LV catalyst extends opening time through the following mechanism:
- Selective Catalysis: The 33LV catalyst is selective for the reaction of isocyanate and polyol, and can preferentially catalyze certain reaction paths, thereby delaying the overall reaction rate.
- Reaction Control: By adjusting the amount of catalyst added, the reaction rate can be accurately controlled and the opening time can be extended.
- Temperature Sensitivity: The 33LV catalyst is less active at lower temperatures, and its activity gradually increases as the temperature rises, thus providing longer opening time during the processing.
3.3 Advantages in practical applications
In actual production, the advantages of extended opening time of 33LV catalysts are reflected in the following aspects:
- Improving Productivity: Extending opening hours gives operators more time to mix, pour and mold, reducing scrap rate.
- Improving product quality: Longer opening time helps the discharge of bubbles and the uniform distribution of materials, improving the physical properties of the product.
- Adapting to complex processes: For products that require complex molding processes, 33LV catalysts can provide sufficient processing time to ensure product quality.
IV. Application of 33LV catalyst in different polyurethane systems
4.1 Soft polyurethane foam
In the production of soft polyurethane foam, 33LV catalyst can provide longer opening time, making the foam structure more uniform and improving product comfort and durability.
4.2 Rigid polyurethane foam
Rough polyurethane foam is usually used in insulation materials, and the extended opening time characteristics of 33LV catalysts help to improve the closed cell ratio of the foam and enhance insulation performance.
4.3 Polyurethane elastomer
In the production of polyurethane elastomers, the 33LV catalyst can provide longer processing time, allowing the material to fully fill the mold and improve the dimensional accuracy and surface quality of the product.
V. Precautions for the use of 33LV catalyst
5.1 Storage and Transport
- Storage temperature: It is recommended to store below 25℃ to avoid high temperatures and direct sunlight.
- Transportation requirements: Severe vibrations and collisions should be avoided during transportation to prevent damage to the container.
5.2 Safe Operation
- Personal Protection: Wear protective gloves, goggles and protective clothing during operation to avoid direct contact with the skin and eyes.
- Ventiation Requirements: The operating area should be well ventilated to avoid inhaling steam.
5.3 Waste treatment
- Shipping treatment: The waste catalyst should be treated in accordance with local environmental regulations to avoid pollution of the environment.
VI. Future development trends of 33LV catalysts
6.1 Environmentally friendly catalyst
As the increasingly stringent environmental regulations, 33LV catalysts will develop towards lower VOC emissions and more environmentally friendly in the future.
6.2 Multi-powerEnergy catalyst
The future catalysts will not only have the characteristics of extending the opening time, but will also have other functions, such as improving product weather resistance and antibacterial properties.
6.3 Intelligent Catalyst
With the development of intelligent manufacturing, future catalysts will be able to automatically adjust their activity according to production conditions and achieve intelligent production.
Conclusion
Polyurethane gel amine catalyst 33LV plays an important role in the production of polyurethane products due to its unique advantages in extending opening time. Through mechanisms such as selective catalysis, reaction control and temperature sensitivity, 33LV catalysts can significantly extend the opening time and improve production efficiency and product quality. In the future, with the development of environmental protection and intelligence, 33LV catalysts will continue to be optimized and upgraded, providing stronger support for the development of the polyurethane industry.
The above content discusses the characteristics, product parameters and advantages in extending the opening time of the polyurethane gel amine catalyst 33LV in detail. The physical and chemical properties of 33LV catalysts and their applications in different polyurethane systems are clearly demonstrated through tables and data. I hope this article can provide readers with valuable information to help better understand and apply 33LV catalysts.
Extended reading:https://www.newtopchem.com/archives/39814
Extended reading:https://www.cyclohexylamine.net/catalyst-1027-polyurethane-catalyst-1027/
Extended reading:https://www.bdmaee.net/wp-content/uploads/2021/05/2-3.jpg
Extended reading:https://www.bdmaee.net/strong-gel-catalyst/
Extended reading:https://www.newtopchem.com/archives/952
Extended reading:https://www.newtopchem.com/archives/45108
Extended reading:<a href="https://www.newtopchem.com/archives/45108
Extended reading:https://www.newtopchem.com/archives/45050
Extended reading:https://www.newtopchem.com/archives/43090
Extended reading:https://www.newtopchem.com/archives/43920
Extended reading:https://www.newtopchem.com/archives/631
Comments