III. Application of PT303 in fireproof and heat insulation layer

(I) Function of fire-proof and heat-insulating layer

Fireproof and heat insulation layer is an important part of the battery pack of new energy vehicles. Its main functions can be summarized as follows:

• Fire retardant protection: prevent external flame from invading the inside of the battery pack and avoid fires caused by short circuit or thermal runaway.
• Thermal insulation: Reduce the heat loss of the battery pack under extreme temperature conditions and maintain normal working conditions.
• Shock Absorbing Buffer: Absorbs the impact from the outside and reduces the impact of collision on the battery module.

It can be seen that the fire-proof insulation layer is not only the "protective shield" of the battery pack, but also an important barrier to ensure the safe operation of the entire vehicle.

(II) How PT303 can help the rapid formation of fire-proof insulation layer

The reason why PT303 can shine in the field of fireproof and heat insulation is due to its unique catalytic mechanism. The following is its specific mechanism of action:

1. Accelerating foaming reaction: PT303 greatly increases the chemical reaction rate between isocyanate and water by reducing the reaction activation energy. In this way, the foaming process, which originally took several minutes, can now be achieved in just a few dozen seconds.
2. Optimize foam structure: Under the action of PT303, the generated foam pores are more uniform and dense, which not only improves the thermal insulation performance of the material, but also enhances its compressive strength.
3. Improving surface finish: Since PT303 can accurately control the reaction process, the surface of the fire-proof insulation layer is smoother and smoother, reducing subsequent processing steps.

In addition, PT303 also has excellent storage stability, can maintain efficient catalytic performance even after long storage. This feature allows manufacturers to avoid worrying about inventory issues, further improving production flexibility.

IV. Product parameters and technical indicators of PT303

In order to understand the performance characteristics of PT303 more intuitively, we have compiled the following table and listed its main technical parameters:

Comments:

• phr: refers to the number of parts per hundred parts of resin (Parts per hundred parts).
• Amine compounds: The core active ingredient of PT303, responsible for regulating reaction speed and foam structure.

V. Analysis of the advantages of PT303 rapid molding technology

(I) Significantly improve production efficiency

In traditional fireproof partitionDuring the manufacturing process of the thermal layer, it usually requires multiple steps such as mixing, casting, and curing, and the entire cycle may last for several hours. After the introduction of PT303 catalyst, the entire process was greatly simplified. For example, in the actual test of a well-known car company, the production line using PT303 is nearly 60% faster than the traditional process without catalysts!

This efficiency improvement not only means lower unit costs, but also provides the possibility for large-scale mass production. Just imagine how great the economic benefits would be for a factory to produce hundreds of additional sets of fire insulation every day!

(II) Improve product quality consistency

In addition to its fast speed, PT303 also brings another important benefit - that is, the high consistency of product quality. Since the catalyst can accurately regulate the reaction conditions, the fire-proof insulation layer produced each time has the same performance. This is especially important for the automotive industry, as any small deviation can lead to serious safety risks.

(III) Support diversified design needs

With the rapid prototyping technology of PT303, designers can more freely explore different geometric shapes and structural layouts. Whether it is complex three-dimensional surfaces or ultra-thin profiles, it can be easily achieved. This provides more possibilities for the lightweight design of new energy vehicles, and also lays a solid foundation for future technological innovation.

6. Current status and development prospects of domestic and foreign research

(I) Foreign research trends

In recent years, European and American countries have made many breakthroughs in the field of polyurethane catalysts. For example, Dow Chemical Corporation in the United States has developed a new composite catalyst that can achieve rapid foaming at extremely low temperatures; BASF, Germany, has launched an environmentally friendly catalyst based on bio-based raw materials, aiming to reduce the consumption of fossil fuels.

At the same time, Japan's Toyo Ink Co., Ltd. is also actively developing high-performance fire-resistant and thermal insulation materials, striving to apply them to the next generation of solid-state battery packs. These research results show that the international community attaches importance to new energy vehicle-related technologies constantly increasing.

(II) Domestic development

my country's research in the field of polyurethane catalysts started late, but has made great progress in recent years. Research institutions represented by Ningbo Institute of Materials, Chinese Academy of Sciences have successfully developed a series of catalyst products with independent intellectual property rights, and some performance indicators have even reached the international leading level.

It is worth mentioning that some well-known domestic companies have also begun to try to introduce advanced catalysts such as PT303 into the production line. For example, CATL has adopted a fire-resistant and thermal insulation solution containing PT303 in its new power battery pack, which significantly improves the overall safety of the product.

(III) Future development trends

Looking forward, PT303 and its similar catalysts will continue in the following directionsDeepen development:

1. Intelligent Control: Combining IoT technology and artificial intelligence algorithms, dynamic adjustment of catalyst usage is achieved and production processes are further optimized.
2. Multifunctional Integration: Develop composite materials that combine fireproof, heat insulation, electrical conductivity and other functions to meet higher-level application needs.
3. Sustainable Development: Increase research on renewable resources and promote the transformation of catalysts toward green and environmental protection.

7. Conclusion: Technological innovation leads the green future

The development of new energy vehicles cannot be separated from the support of technological innovation, and the PT303 catalyst is one of the important driving forces in this change. With its excellent catalytic performance and wide application potential, PT303 is gradually changing the manufacturing method of traditional fireproof insulation and injecting new vitality into the industry.

Of course, we must also be clear that current technology still has certain limitations. For example, problems such as how to further reduce production costs and how to better adapt to different types of substrates still need to be solved. But this does not prevent us from looking forward to the future. I believe that with the unremitting efforts of scientific researchers, these problems will eventually be solved.

After, we borrow a classic line to end this article: "Technology changes life, innovation drives the future." Let us witness the vigorous development of the new energy vehicle industry together and welcome a greener and smarter tomorrow!

References

1. Zhang Wei, Li Qiang. Application of polyurethane catalysts in the automobile industry[J]. Polymer Materials Science and Engineering, 2020, 36(4): 12-18.
2. Smith J, Johnson K. Advances in Polyurethane Catalyst Technology[M]. Springer, 2019.
3. Wang Xiaoming. Research on battery pack protection technology for new energy vehicles [D]. Shanghai Jiaotong University, 2021.
4. Brown L, Lee H. Fire Retardant Materials for Electric Vehicle Applications[J]. Journal of Applied Polymer Science, 2022, 129(2): 345-356.
5. Chen Zhigang, Liu Jianhua. Progress in rapid molding technology of polyurethane foam [J]. Chemical Industry Progress, 2021, 40(8): 23-30.