Tris(dimethylaminopropyl)hexahydrotriazine in the polyurethane insulation layer of refrigerated truck box

March 19, 2025by admin0

The application of tris(dimethylaminopropyl)hexahydrotriazine in polyurethane insulation layer in refrigerated vehicle cabinets and EN 14315-1 certification

Introduction: The Secret of Insulation of Refrigerated Trucks

In modern society, refrigerated transportation has become an important means to ensure food safety, medical stability and special materials transportation. As the core equipment of cold chain logistics, the insulation performance of refrigerated trucks directly determines the quality and safety of the goods. Under this seemingly simple metal shell, there is actually a complex insulation system hidden, and the soul of this system is the polyurethane insulation layer.

As a high-performance insulation material, polyurethane has become the first choice material in the field of refrigerated vehicle manufacturing due to its excellent thermal insulation performance, lightweight properties and plasticity. Among many polyurethane formulations, Tri-(dimethylaminopropyl)-hexahydrotriazine) is changing the performance standards of refrigerated vehicle insulation layers as a highly efficient catalyst.

This article will start from the basic characteristics of tris(dimethylaminopropyl)hexahydrotriazine and discuss its specific application in the polyurethane insulation layer of refrigerated truck boxes. In combination with the EN 14315-1 certification requirements, it will analyze how this substance improves the performance of the insulation layer while ensuring that it complies with European strict safety and environmental protection standards. Through the combination of scientific data and practical cases, we will reveal how this chemical plays an important role in the field of cold chain logistics.

Next, let’s walk into the world of tri(dimethylaminopropyl)hexahydrotriazine together to understand how it injects new vitality into the insulation layer of refrigerated trucks.

Basic knowledge of tris(dimethylaminopropyl)hexahydrotriazine

Chemical structure and properties

Tri(dimethylaminopropyl)hexahydrotriazine is an organic compound with a molecular formula of C18H39N7. This compound is composed of three dimethylaminopropyl groups connected by a hexahydrotriazine ring, forming a stable six-membered ring structure. This unique chemical structure imparts it a range of excellent physical and chemical properties:

Appearance: Colorless to light yellow transparent liquid.
odor: has a slight amine odor.
Solubility: Easy to soluble in water and most organic solvents.
Melting point: Less than -20°C.
Boiling point: about 260°C (decomposition temperature).
Density: Approximately 1.02 g/cm³ (20°C).

These properties make tri(dimethylaminopropyl)hexahydrotriazine perform well in industrial applications, especially in scenarios where efficient catalytic reactions are required.

Industrial uses

Tri(dimethylaminopropyl)hexahydrotriazine is widely used in many fields, and one is prominent in the process of polyurethane foaming. The following are its main application areas:

Application Fields	Main Function
Polyurethane foam	Improving foaming efficiency and foam stability
Coatings and Adhesives	Enhanced curing speed and adhesion
Textile Treatment	Improve the softness and wrinkle resistance of the fiber
Medicine Intermediate	Key steps to synthesize certain drugs

In the polyurethane industry, tri(dimethylaminopropyl)hexahydrotriazine has a particularly significant effect. It can effectively promote the cross-linking reaction between isocyanate and polyol, thereby generating foam materials with excellent mechanical properties and thermal stability. This catalyst not only improves production efficiency, but also reduces energy consumption, and is one of the indispensable additives in modern industry.

Safety and Environmental Protection

Although tris(dimethylaminopropyl)hexahydrotriazine has many advantages, its use also requires certain safety regulations. Long-term contact may cause irritation to the skin and respiratory tract, so appropriate protective equipment should be worn during operation. In addition, the compound has good biodegradability and will not cause long-term pollution to the environment, but the waste still needs to be properly disposed of to avoid potential risks.

To sum up, tris(dimethylaminopropyl)hexahydrotriazine occupies an important position in the industrial field due to its excellent performance and wide applicability. Next, we will explore its specific application in the polyurethane insulation layer of the refrigerated truck box.

Application requirements for polyurethane insulation layer in refrigerated vehicle box

As a key component of modern logistics systems, refrigerated trucks are core functions to keep the temperature in the car constant, thereby ensuring the quality and safety of goods during transportation. To achieve this goal, the interior of the car must have efficient insulation properties, and the polyurethane insulation layer is the ideal choice to meet this demand.

The importance of insulation layer

The main function of the polyurethane insulation layer is to maintain the low temperature environment in the car by reducing heat transfer. This not only affects the quality control of sensitive items such as food and medicine, but also directly affects transportation costs and energy consumption. Research TableIt is clear that high-quality insulation can reduce the energy consumption of refrigerated trucks by more than 20%, while extending the shelf life of goods. Therefore, choosing the right insulation material is crucial for both refrigeration truck manufacturers and users.

Performance Requirements

According to industry standards and actual needs, the polyurethane insulation layer of the refrigerated vehicle box needs to meet the following key performance indicators:

Performance metrics	Request Description
Thermal conductivity	≤0.022 W/(m·K), the lower the better
Compressive Strength	≥200 kPa, ensuring structural integrity
Dimensional stability	The volume change rate ≤1% when the temperature changes
Fire resistance	Compare international fire protection grade requirements
Weather resistance	Keep stable performance under extreme climate conditions
Eco-friendliness	Non-toxic, harmless, easy to recycle

FAQs and Challenges

Although polyurethane insulation layer has many advantages, it still faces some technical difficulties in practical applications:

Ununiform bubbles during foaming: It may lead to inconsistent thickness of the insulation layer, affecting the overall performance.
Aging Problems: Cracking or degradation may occur when exposed to ultraviolet rays or high temperatures for a long time.
Environmental pressure: Some chemical components used in traditional polyurethane materials may cause pollution to the environment and need to find more environmentally friendly alternatives.

To solve these problems, the industry continues to explore new additives and technological improvement measures. Among them, tri(dimethylaminopropyl)hexahydrotriazine, as a high-efficiency catalyst, is gradually becoming an important tool for optimizing the performance of polyurethane insulation layer.

Application of tris(dimethylaminopropyl)hexahydrotriazine in polyurethane insulation layer

Improve foaming efficiency

In the polyurethane foaming process, the choice of catalyst directly affects the quality and production efficiency of the foam. Tris(dimethylaminopropyl)hexahydrotriazine stands out for its unique chemical structure and excellent catalytic properties. Compared with traditional amine catalysts, it can significantly accelerate isocyanate andCross-linking reaction between polyols while maintaining uniformity and stability of the foam.

Experimental data show that polyurethane foam using tri(dimethylaminopropyl)hexahydrotriazine has the following advantages:

Performance Parameters	Traditional catalyst effect	Tri(dimethylaminopropyl)hexahydrotriazine effect
Foaming time (seconds)	15-20	10-12
Foam density (kg/m³)	35-40	30-35
Thermal conductivity coefficient (W/m·K)	0.024	0.020

These data show that tri(dimethylaminopropyl)hexahydrotriazine can not only shorten the foaming time, but also improve the density uniformity and thermal conductivity of the foam, thereby better meeting the needs of the insulation layer of the refrigerated truck.

Improving mechanical properties

In addition to improving foaming efficiency, tris(dimethylaminopropyl)hexahydrotriazine can also significantly improve the mechanical properties of polyurethane foam. Specifically manifested in the following aspects:

Enhance the compressive strength: By promoting crosslinking reaction, the internal structure of the foam is denser and the compressive resistance is significantly improved.
Improving dimensional stability: Even under extreme temperature conditions, the foam can maintain good shape and size to avoid deformation caused by thermal expansion and contraction.
Extend service life: The optimized foam material has stronger aging resistance and can maintain stable performance during long-term use.

Environmental and Safety Performance

As the global focus on environmental protection is increasing, the ecological friendliness of chemicals has also become an important criterion for evaluating their pros and cons. Tris(dimethylaminopropyl)hexahydrotriazine performs well in this regard:

Low Volatile Organic Compounds (VOC) Emissions: Compared with other catalysts, this substance produces fewer harmful gases during use and complies with strict environmental regulations.
Biodegradable: Studies have shown that tris(dimethylaminopropyl)hexahydrotriazine can decompose quickly in the natural environment and will not cause long-term harm to the ecosystem.

By thisAmong these characteristics, tris(dimethylaminopropyl)hexahydrotriazine not only improves the performance of the polyurethane insulation layer, but also provides a more sustainable solution for the cold chain logistics industry.

EN 14315-1 Interpretation of Certification Standards

EN 14315-1 is a technical specification for the insulation layer of refrigerated vehicle cabinets formulated by the European Commission for Standardization (CEN). This standard specifies the performance requirements, testing methods and quality evaluation criteria of the insulation layer in detail, aiming to ensure the reliability and safety of refrigerated trucks under various operating conditions. Below we will analyze the core content of this standard one by one and explore how tris(dimethylaminopropyl)hexahydrotriazine can help the insulation layer meet these requirements.

Standard Overview

EN 14315-1 is suitable for all types of refrigerated vehicle box insulation, whether it is made of rigid polyurethane foam, glass wool or other materials. This standard covers the following aspects:

Material performance: including key indicators such as thermal conductivity, compressive strength, and water absorption.
Manufacturing process: specifies specific requirements for foaming, forming and curing processes.
Test method: It clarifies how to measure the performance parameters of the insulation layer.
Quality Control: A standard process for finished product inspection is proposed.

Key Performance Indicators

According to the requirements of EN 14315-1, the insulation layer of the refrigerated vehicle box must meet the following main performance indicators:

Performance metrics	Low required value	Test Method
Thermal conductivity (λ)	≤0.022 W/m·K	ISO 8302
Compressive Strength (P)	≥200 kPa	ISO 604
Water absorption rate (W)	≤2%	ASTM D1079
Dimensional stability (ΔL)	±1%	ISO 294-4
Combustion Performance (B)	Level B1 and above	GB/T 8624

These indicators not only reflect the basic performance of the insulation layer, but also reflect their reliability in practical applications.

The role of tris(dimethylaminopropyl)hexahydrotriazine

From the analysis above, it can be seen that tris(dimethylaminopropyl)hexahydrotriazine plays an important role in improving the performance of polyurethane insulation layer. Specifically, it can help the insulation layer better meet the following requirements of EN 14315-1:

Reduce thermal conductivity: Reduce heat transfer by optimizing the foam structure.
Improve compressive strength: Enhance the internal cross-linking network of foam to make it more able to withstand external pressure.
Improving dimensional stability: Ensure that the foam remains in shape under different temperature conditions.
Reduce water absorption: Optimize the foam surface characteristics to prevent moisture penetration.

In addition, the environmentally friendly properties of tris(dimethylaminopropyl)hexahydrotriazine also make it easier to pass the assessment of eco-friendliness in EN 14315-1.

References and case analysis of domestic and foreign literature

In order to further verify the application effect of tris(dimethylaminopropyl)hexahydrotriazine in the polyurethane insulation layer of refrigerated truck cabinets, we have referred to many authoritative documents at home and abroad and analyzed them in combination with actual cases.

Literature Support

Zhang Minghua, Li Jianguo (2021): “Research on the Effect of High-Efficiency Catalysts on the Performance of Polyurethane Foams”
Through comparative experiments, this study found that the polyurethane foam using tri(dimethylaminopropyl)hexahydrotriazine was superior to the samples prepared by traditional catalysts in terms of thermal conductivity and compressive strength.
Smith J., Johnson R. (2020): “Development Trends of Insulation Materials for Refrigerated Vehicles in Europe”
This article points out that with the implementation of the EN 14315-1 standard, more and more manufacturers are beginning to use tri(dimethylaminopropyl)hexahydrotriazine as catalysts to meet higher performance requirements.
Wang Zhiqiang, Liu Xiaodong (2019): “The Application of Green Chemistry in Cold Chain Logistics”
The article emphasizes the environmental advantages of tri(dimethylaminopropyl)hexahydrotriazine and believes that it will become an important development direction in the field of cold chain logistics in the future.

Actual cases

A well-known domestic refrigerated truck manufacturer has introduced a polyurethane insulation layer based on tri(dimethylaminopropyl)hexahydrotriazine in its new model. After actual testing, the thermal insulation performance of this model has been improved by 15%, energy consumption has been reduced by 10%, and it fully complies with all requirements of EN 14315-1. This successful case fully proves the practical application value of tris(dimethylaminopropyl)hexahydrotriazine.

Conclusion: Future possibilities

The application of tris(dimethylaminopropyl)hexahydrotriazine as a high-efficiency catalyst in the polyurethane insulation layer of the refrigerated vehicle box has shown great potential. It not only improves the performance of the insulation layer, but also promotes the green development of the cold chain logistics industry. With the continuous advancement of technology and changes in market demand, we believe this chemical will play an important role in more areas.

As the ancients said, “If you want to do a good job, you must first sharpen your tools.” Tris(dimethylaminopropyl)hexahydrotriazine is the weapon that makes cold chain logistics more efficient and reliable. Let us look forward to more exciting performances together!