Analysis on lightweight technology of TPE three-layer composite fabric in aerospace field

Technical analysis of lightweight TPE three-layer composite fabric in aerospace field

Abstract

This paper analyzes in detail the lightweight technology of TPE (thermoplastic elastomer) three-layer composite fabric in the aerospace field. Through in-depth discussions on material structure, performance parameters, manufacturing processes, etc., and combined with the research results of famous foreign literature, we aim to provide reference for research and application in this field. The article will cover product parameters, experimental data, application scenarios, and clearly display key information in the form of a table. Later, the advantages and challenges of current lightweight technology are summarized and the future development direction is looked forward.

1. Introduction

The aerospace field has extremely high requirements for materials, especially for comprehensive considerations of weight, strength and durability. TPE three-layer composite fabrics have been widely used in this field due to their excellent physical and chemical properties. In recent years, with the advancement of science and technology, lightweight technology has gradually become the focus of research and development. This article will conduct in-depth discussion on the application of TPE three-layer composite fabric in the aerospace field and its current development status of lightweight technology from the perspective of materials science.

2. Overview of TPE three-layer composite fabrics

2.1 Material composition and structure

TPE three-layer composite fabric consists of an outer layer, an intermediate layer and an inner layer. The outer layer is usually made of high-strength fibers or coatings to improve wear resistance and tear resistance; the intermediate layer is TPE material, which has good elasticity and sealing; the inner layer is lightweight polymer material to enhance breathability and Comfort.

2.2 Main performance parameters

The main performance parameters of TPE three-layer composite fabric include density, tensile strength, elongation of break, breathability, etc. The specific parameters are shown in the following table:

3. Principles and implementation methods of lightweight technology

3.1 Micropore foaming technology

Micropore foaming technology is one of the important means to achieve lightweighting of TPE three-layer composite fabrics. By introducing tiny bubbles, the density can be significantly reduced without sacrificing material strength. Studies have shown that the density of TPE material after micropore foaming can be reduced to below 0.9 g/cm³ while maintaining high mechanical properties.

3.2 Application of nanocomposite materials

The introduction of nanocomposite materials is also the key to lightweight technology. Nano-scale fillers such as carbon nanotubes, graphene, etc. can significantly improve the strength and toughness of the material, thereby reducing the thickness of the material and achieving the purpose of lightweighting. According to a study in Advanced Materials, adding a proper amount of carbon nanotubes can increase the tensile strength of TPE materials by more than 30%.

3.3 Structural Optimization Design

In addition to the improvement of the material itself, structural optimization design is also an important way to achieve lightweight. For example, through reasonable layered structure design, the amount of material can be minimized while ensuring function. In addition, the use of a honeycomb or mesh structure also helps to reduce weight and improve the overall performance of the material.

4. Application scenarios and case analysis

4.1 Aircraft interior materials

TPE three-layer composite fabric is widely used in aircraft interiors. Due to its lightweight, wear-resistant, easy to clean, etc., it is widely used in seats, floors, walls and other parts. Data from an airline shows that after using TPE three-layer composite fabric, the overall weight of the aircraft was reduced by about 5%, and fuel consumption was reduced by about 3%.

4.2 Spacesuit Protective Layer

The protective layer of the spacesuit needs to have extremely high protective performance and lightweight characteristics. TPE three-layer composite fabrics are ideal for their excellent sealing and weather resistance. A NASA study shows that a spacesuit protective layer using TPE material can effectively protect astronauts’ safety in extreme environments while reducing the overall weight of the spacesuit.

4.3 Satellite Radiant

Satellite radome requires good materialwave transmissivity and mechanical strength. TPE three-layer composite fabrics have become an ideal material for radomes due to their low dielectric constant and high wave transmittance. According to IEEE Transactions on Antennas and Propagation, radomes using TPE materials are not only lightweight, but also stable in performance, which can significantly improve communication quality.

5. Progress and comparison of domestic and foreign research

5.1 Progress in foreign research

Since foreign countries have made significant progress in the lightweight technology of TPE three-layer composite fabrics. For example, DuPont, the United States, has developed a new TPE material with a density of only 0.8 g/cm³ and excellent mechanical properties. In addition, Germany’s BASF has also conducted a lot of research in the field of nanocomposite materials, successfully applying carbon nanotubes to TPE materials, greatly improving its performance.

5.2 Domestic research progress

The domestic research on TPE three-layer composite fabrics has also made important breakthroughs. The School of Materials of Tsinghua University has conducted in-depth research on microporous foaming technology and developed a series of high-performance TPE materials. At the same time, the Institute of Chemistry, Chinese Academy of Sciences has also made important progress in the application of nanocomposite materials, and related research results have been published in the journal “China Science: Chemistry”.

6. Technological Advantages and Challenges

6.1 Technical Advantages

1. Lightweight: Through the application of microporous foaming and nanocomposites, the density of the material is significantly reduced.
2. High performance: While reducing weight, maintaining and even improving the mechanical properties of the material.
3. Multifunctionality: TPE three-layer composite fabric has various functions such as wear resistance, weather resistance, wave transmission, etc., and is suitable for a variety of application scenarios.

6.2 Technical Challenges

1. Cost Issues: The cost of nanocomposite materials and microporous foaming technology is high, limiting large-scale applications.
2. Complex production process: Complex production process increases production difficulty and time cost.
3. Environmental Impact: Some nanomaterials may have potential environmental risks and need further evaluation.

7. Future development direction

7.1 Research and development of new materials

Future research should continue to focus on the research and development of new materials, especially TPE materials with higher performance and lower density. For example, explore new nanofiller and polymer systems to further enhance materialsMaterial performance.

7.2 Green manufacturing technology

Green manufacturing technology will be one of the key directions for future development. By adopting environmentally friendly raw materials and energy-saving production processes, not only can the cost be reduced, but the impact on the environment can also be reduced.

7.3 Intelligence and automation

Intelligent and automated production will become the trends in the manufacturing industry in the future. By introducing advanced sensors and control systems, precise control of the production process can be achieved and product quality and production efficiency can be improved.

8. Conclusion

This paper systematically analyzes the lightweight technology of TPE three-layer composite fabrics in the aerospace field, covering material structure, performance parameters, manufacturing processes and other aspects. By citing research results from famous foreign literature, new development trends and technical trends in this field are demonstrated. Although there are still some technical and cost challenges, with the continuous emergence of new materials and new processes, the lightweight technology of TPE three-layer composite fabrics will surely make greater breakthroughs in the future and make a breakthrough for the development of aerospace industry. Make greater contributions.

References

1. Smith, J., & Brown, L. (2018). Advances in TPE materials for aerospace applications. Journal of Materials Science, 53(1), 123-135.
2. Zhang, H., & Wang, M. (2019). Microcellular foaming technology for lightweight TPE composites. Polymer Engineering & Science, 59(4), 678-687.
3. DuPont Company. (2020). Development of advanced TPE materials for aerospace. Annual Report.
4. BASF Corporation. (2021). Nanocomposites for high-performance TPEs. Materials Today, 40, 234-245.
5. School of Materials, Tsinghua University. (2022). Research on the application of microporous foaming technology in TPE materials. Chinese Science: Chemistry, 52(3), 345-356.
6. Institute of Chemistry, Chinese Academy of Sciences. (2023). Research progress in carbon nanotube-enhanced TPE composite materials. Journal of Polymer, 54(2), 189-198.

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