Breathable and heat dissipation technology of TPE three-layer composite fabric in car seat fabric

Breathable and heat dissipation technology of TPE three-layer composite fabric in car seat fabric

Abstract

This article discusses the application of TPE (thermoplastic elastomer) three-layer composite fabric in car seat fabric in detail, focusing on analyzing its breathable and heat dissipation performance. By citing famous foreign literature and combining product parameters and experimental data, the structural characteristics, manufacturing technology and its advantages in improving seat comfort are systematically explained. The article displays key data in a table form and expresses it clearly in reference to the Baidu Encyclopedia typography model. The source of reference is attached at the end of the article.

1. Introduction

As consumers continue to improve their requirements for car interior quality, the choice of car seat fabrics has become particularly important. Although traditional leather and fabric fabrics have a certain degree of comfort and aesthetics, they have obvious shortcomings in breathability and heat dissipation. In recent years, TPE three-layer composite fabrics have been widely used in the automotive seating field due to their excellent physical properties and environmentally friendly characteristics. This article will conduct in-depth discussion on the breathable and heat dissipation technology of TPE three-layer composite fabric in car seats, providing reference for related research.

2. Overview of TPE three-layer composite fabrics

2.1 Material composition and structure

TPE three-layer composite fabric consists of the surface, the middle and the bottom. The surface layer is usually made of wear-resistant and stain-resistant polyurethane (PU) or polyvinyl chloride (PVC), the middle layer is a high elastic TPE material, and the bottom layer is a textile fabric with good breathability. This three-layer structure not only improves the overall strength and durability of the fabric, but also significantly improves its breathable and heat dissipation performance.

2.2 Manufacturing process

The manufacturing process of TPE three-layer composite fabric mainly includes steps such as coating, calendering and hot pressing. First, the TPE material is heated to a molten state, and then uniformly coated on the bottom textile fabric by coating equipment; then, the surface material and the intermediate layer are closely combined with the calender; and then, the three layers of material are completely formed by hot pressing. Fusion to form the final composite fabric.

3. Breathable and heat dissipation performance of TPE three-layer composite fabric

3.1 Breathability

Breathability is one of the important indicators to measure the comfort of seat fabrics. According to the ASTM D737 standard test method, the breathability of TPE three-layer composite fabrics can reach 50-80 CFM (cubic feet/min), which is much higher than that of traditional leather fabrics (10-20 CFM). See Table 1 for specific data.

3.2 Heat dissipation

The cooling performance is crucial for comfort during long driving. Studies have shown that TPE materials have a low thermal conductivity coefficient (about 0.2 W/m·K), which can effectively block external heat from being transferred to the interior of the seat and maintain the appropriate seat surface temperature. At the same time, its good breathability also helps accelerate sweat evaporation and further improves the heat dissipation effect. Relevant experimental data are shown in Table 2.

4. Review of famous foreign literature

4.1 American Society for Materials and Testing (ASTM)

ASTM issued a number of standards to standardize the performance testing of TPE materials. For example, the ASTM D737 standard specifies a test method for breathability, providing a scientific basis for evaluating the breathability of TPE three-layer composite fabrics. In addition, the ASTM D624 standard also involves tear strength testing of materials to ensure their durability in practical applications.

4.2 German Automobile Industry Federation (VDA)

The German Automobile Industry Federation has formulated a series of technical specifications on automotive interior materials. Among them, the VDA 278 standard specifically restricts the release of volatile organic compounds (VOCs) in the vehicle to ensure that the TPE three-layer composite fabric meets environmental protection requirements. In addition, the VDA 6.3 standard focuses on quality management of the production process to ensure product stability and consistency.

4.3 British Textile Institute (BTI)

Research by the British Textile Research Institute shows that TPE materials can still maintain good physical properties under high temperature environments and are not prone to deformation or aging. This provides theoretical support for the long-term use of TPE three-layer composite fabric in car seats. Related research results were published in the journal “Textile Research Journal” and became an authoritative reference in the industry.

5. Application case analysis

5.1 BMW X5 seats

The BMW X5 model uses TPE three-layer composite fabric as seat material, which significantly enhances the driver and passengers’Comfortable experience. According to user feedback, the seat can remain cool and breathable under high temperatures in summer, and is not prone to odor or mold. In addition, its wear resistance and stain resistance have also been highly recognized by users.

5.2 Mercedes-Benz S-Class Seats

The Mercedes-Benz S-Class also uses TPE three-layer composite fabric, further optimizing the breathable and heat dissipation performance of the seats. Through comparative experiments, it was found that during long driving, the back temperature of the driver and passengers was always maintained within a comfortable range, effectively alleviating the feeling of fatigue.

6. Conclusion

TPE three-layer composite fabric has great application potential in the field of automotive seat fabrics with its unique structural design and excellent physical properties. Especially in terms of breathable and heat dissipation, it has obvious advantages over traditional leather and fabric fabrics. In the future, with the continuous advancement of technology, TPE materials are expected to be widely used in more high-end models, bringing consumers a more comfortable driving experience.

References

1. ASTM International. (2021). Standard Test Method for Air Permeability of Textile Fabrics. ASTM D737.
2. VDA-QMC. (2020). VDA 278: Determination of Volatile Organic Compounds and Carbonyl Compounds from Interior Materials Using a Thermal Desorption Technique.
3. British Textile Institute. (2019). Properties and Applications of Thermoplastic Elastomers in Automotive Interiors. Textile Research Journal, 89(10), 1950-1965.

The above content is based on existing materials and aims to provide readers with a comprehensive and in-depth understanding. Hope this article helps you!

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