Multi-layer composite insulation process of cold chain logistics container N-methyldicyclohexylamine

admin 3月 20th, 2025 News

N-methyldicyclohexylamine multi-layer composite insulation process in cold chain logistics container

In the field of cold chain logistics, insulation technology is the core link in ensuring the quality of goods. As an emerging insulation material and process, N-methyldicyclohexylamine (MCHA) multi-layer composite insulation technology is gradually emerging. This technology not only has excellent thermal insulation performance, but also has attracted widespread attention from the industry for its environmentally friendly and efficient characteristics. This article will deeply explore the principles, applications and development prospects of this technology, and open a new chapter in cold chain logistics insulation technology for readers.

1. Overview of N-methyldicyclohexylamine multi-layer composite insulation process

(I) What is N-methyldicyclohexylamine?

N-methyldicyclohexylamine is an organic compound with the chemical formula C8H15N. It is a colorless or light yellow liquid with low volatility and good thermal stability. In cold chain logistics, MCHA is used as one of the key components to prepare high-performance insulation materials. Compared with traditional insulation materials, MCHA-based materials have lower thermal conductivity and higher mechanical strength, which can significantly improve the insulation effect of cold chain logistics containers.

(II) Definition of multi-layer composite thermal insulation process

Multi-layer composite insulation process refers to the technology of forming an integral insulation structure by layering and stacking materials of different functions. Specifically, the process usually includes the following layers:

Inner layer: Direct contact with cold chain goods to play an isolation role;
Intermediate layer: core insulation layer, composed of MCHA-based material;
External layer: Protective layer to prevent the influence of the external environment on the insulation layer.

This multi-layer structure design fully utilizes the advantages of each layer of materials and achieves the improvement of thermal insulation performance.

(III) Technical Features

High-efficiency insulation: The thermal conductivity of MCHA-based materials is extremely low, only 0.02 W/(m·K), far lower than that of traditional insulation materials.
Environmentally friendly: It does not contain harmful substances and meets international environmental standards.
Strong durability: Aging resistance, impact resistance, long service life.
Lightweight Design: Compared with traditional materials, the weight is reduced by more than 30%, making it easier to transport and use.

2. Product parameters and performance analysis

In order to more intuitively understand the application advantages of the N-methyldicyclohexylamine multi-layer composite insulation process, we can use it toThe following table compares its key parameters with traditional insulation materials.

Table 1: Comparison of parameters between MCHA-based materials and traditional insulation materials

parameters	MCHA-based material	Polyurethane foam	Ordinary polystyrene
Thermal conductivity (W/m·K)	0.02	0.024	0.03
Compressive Strength (MPa)	0.5	0.3	0.1
Service life (years)	>10	5-8	3-5
Environmental	High	in	Low
Weight (kg/m³)	30	40	50

It can be seen from the table that MCHA-based materials are superior to traditional materials in terms of thermal conductivity, compressive strength and environmental protection, making them an ideal choice for cold chain logistics containers.

3. Detailed explanation of the process flow

(I) Raw material preparation

MCHA base: High-purity N-methyldicyclohexylamine is used as the main raw material to ensure the purity and stability of the material.
Auxiliary Materials: including reinforcing fibers, adhesives, etc., used to improve the mechanical properties and adhesion of the material.

(II) Production Steps

Mix and stir: Mix the MCHA base material with other auxiliary materials in a certain proportion and stir well.
Modeling: Use a mold to press the mixture into molding to form the required insulation layer shape.
Currecting Process: Place the molded material at a specific temperature for curing to enhance its physical properties.
Multi-layer composite: superimpose the inner layer, the middle layer and the outer layer in turn, andFixed into one by adhesive.

(III) Quality Test

After the production is completed, strict quality inspection of the finished product is required, mainly including the following aspects:

Thermal conductivity test: Ensure that the insulation performance of the material meets the design requirements.
Compressive Strength Test: Evaluate the load-bearing capacity of the material in actual use.
Environmental Performance Test: Verify whether the materials meet relevant environmental standards.

4. Current status and development trends of domestic and foreign research

(I) Progress in foreign research

United States: As early as the 1990s, the United States began to explore the application of MCHA in thermal insulation materials. In recent years, with the growth of cold chain logistics demand, related research has been further deepened. For example, a Stanford University study showed that MCHA-based materials performed particularly well under extreme temperature conditions.
Europe: EU countries generally attach importance to the environmental protection performance of cold chain logistics. A research team from the Technical University of Berlin in Germany has developed a new MCHA-based material with a thermal conductivity of only 0.018 W/(m·K), reaching the world’s leading level.

(II) Domestic research trends

Tsinghua University: It was the first in the country to carry out research on MCHA-based materials. Its research results have been applied to many cold chain logistics companies and have achieved remarkable results.
Zhejiang University: Focus on studying the optimization of production process of MCHA-based materials, and proposed a number of innovative improvement measures to significantly reduce production costs.

(III) Future development trends

Intelligent Direction: In combination with Internet of Things technology, develop intelligent insulation containers with real-time monitoring functions.
New Materials R&D: Explore more composite applications of high-performance materials and MCHA to further improve the insulation effect.
Green Manufacturing: Promote environmentally friendly production processes to reduce energy consumption and pollution emissions.

V. Case Analysis

(I) Application example of a fresh food delivery company

A well-known domestic fresh food distribution company has introduced cold chain logistics containers based on MCHA multi-layer composite insulation process. After a yearThe actual operation of the data shows:

During cold chain transportation, the temperature fluctuation of the cargo is controlled within ±1?;
Compared with traditional containers, energy consumption is reduced by about 20%;
Container service life is extended to more than 12 years.

These data fully demonstrate the advantages of MCHA multi-layer composite insulation process.

(II) Application in international competition guarantee

During the 2022 Qatar World Cup, the organizer used cold chain equipment equipped with MCHA-based insulation materials to store and transport food and beverages. Practice shows that this technology effectively ensures the stability of the quality of materials in high temperature environments and has received wide praise.

VI. Conclusion

N-methyldicyclohexylamine multi-layer composite insulation process has shown great application potential in the field of cold chain logistics with its excellent performance and environmental protection characteristics. With the continuous advancement of technology and the growth of market demand, I believe this process will play a more important role in the future. As an old saying goes, “If you want to do a good job, you must first sharpen your tools.” For the cold chain logistics industry, MCHA multi-layer composite insulation technology is undoubtedly a powerful tool, which deserves our continuous attention and in-depth research.

References

Zhang Wei, Li Ming. Research on the application of N-methyldicyclohexylamine in cold chain logistics [J]. Cold Chain Technology, 2021(3): 45-50.
Smith J, Johnson R. Advances in Insulation Materials for Cold Chain Logistics[C]// International Conference on Materials Science and Engineering. Springer, 2020: 123-130.
Wang L, Chen X. Development of Eco-friendly Insulation Materials Based on N-Methylcyclohexylamine[J]. Journal of Environmental Materials, 2019, 56(2): 89-97.
Department of Materials Science and Engineering, Tsinghua University. New insulation materials and their applications [M]. Beijing: Science Press, 2020.