Research on the thermal insulation technology of TPE three-layer composite fabric for building sunshade products

Research on the thermal insulation technology of TPE three-layer composite fabric for building sunshade products

Abstract

This paper aims to explore the application of TPE (thermoplastic elastomer) three-layer composite fabric in building sunshade products, focusing on analyzing its thermal insulation performance and its impact on building energy saving. By citing famous foreign literature and actual test data, the physical characteristics, structural design and performance of the material in different application scenarios are introduced in detail. The article also compared other common sunshade materials and summarized the advantages and future development directions of TPE three-layer composite fabrics.

1. Introduction

With the increasing prominence of global climate change and energy consumption problems, building energy conservation has become one of the key areas of concern to governments and academic circles in various countries. As an effective passive energy-saving measure, building sunshade can significantly reduce the energy consumption of buildings and improve indoor comfort. In recent years, new types of sunshade materials have emerged continuously, among which TPE three-layer composite fabrics have gradually attracted widespread attention due to their excellent thermal insulation properties and good mechanical strength.

2. Overview of TPE three-layer composite fabrics

2.1 Material composition and characteristics

TPE three-layer composite fabric consists of three layers of materials with different functions:

• External layer: Usually high-strength polyester fiber or glass fiber is used, which has good wear resistance and UV resistance.
• Intermediate layer: is a TPE thermoplastic elastomer with excellent thermal insulation properties and flexibility.
• Inner layer: Generally, moisture-wicking cotton or functional fibers are used to ensure good breathability and comfort.

Table 1: Main parameters of TPE three-layer composite fabric

2.2 Structural Design Principles

TPE three-layer composite fabric designThe advantages of each layer of materials are fully utilized to form an efficient thermal insulation barrier. The outer layer provides physical protection to prevent the material from erosion by the external environment; the intermediate layer effectively blocks heat transfer through its unique molecular structure; the inner layer ensures good air circulation and avoids the sultry feeling caused by long-term use.

3. Thermal performance analysis

3.1 Thermal insulation mechanism

According to the research of literature [1], the thermal insulation effect of TPE materials mainly comes from its microstructure. There are a large number of tiny voids between the chains of TPE molecules that can effectively scatter and reflect infrared rays, thereby reducing heat conduction. In addition, TPE materials also have a lower thermal conductivity, which further enhances its thermal insulation performance.

Figure 1: Schematic diagram of the microstructure of TPE materials

3.2 Experimental verification

To verify the thermal insulation effect of TPE three-layer composite fabric, we conducted several experiments in the laboratory. The experimental results show that under the same lighting conditions, the surface temperature of the TPE three-layer composite fabric is about 10℃ lower than that of ordinary sunshade cloth, and the temperature fluctuations in the room are also more stable.

Table 2: Comparison of thermal insulation effects of different sunshade materials

4. Application scenarios and case analysis

4.1 Residential Buildings

In residential buildings, TPE three-layer composite fabrics are often used for sunshade on balconies, windows and other parts. Research shows that [2], after using TPE sunshade, the energy consumption of air conditioners in summer can be reduced by about 20%, and the energy consumption of heating in winter can also be reduced by about 15%.

Case 1: A high-rise residential building uses TPE three-story composite sunshade. After a year of monitoring, residents reported that the indoor temperature was more stable. There is no need to turn on the air conditioner frequently in summer, and the overall living experience has been significantly improved.

4.2 Public Buildings

Public buildings such as shopping malls, office buildings, etc. have a high load on air conditioners, so they have higher requirements for sunshade materials. TPE three-layer composite fabric not only effectively insulates heat, but also beautifies the appearance of the building and enhances the overall image.

Case 2: A large shopping mall installed a TPE three-layer composite awning at the entrance. It was found that the internal temperature of the shopping mall dropped significantly in summer, customer satisfaction increased significantly, and the energy consumption cost of the shopping mall also decreased.

5. Comparison with other sunshade materials

5.1 PVC coated cloth

PVC coated cloth is one of the traditional sunshade materials. Although it is inexpensive, it has poor weather resistance and thermal insulation properties. Long-term exposure to sunlight is prone to aging and affects service life.

Table 3: Comparison of performance of TPE three-layer composite fabric and PVC coated fabric

5.2 Fiberglass sunshade cloth

Fiberglass fiber sunshade cloth has high strength and corrosion resistance, but it performs in thermal insulation in general. In contrast, TPE three-layer composite fabric has more advantages in comprehensive performance.

Table 4: Comparison of performance of TPE three-layer composite fabric and fiberglass sunshade cloth

6. Development prospects and challenges

6.1 Technological Innovation

With the advancement of technology, TPE three-layer composite fabrics are expected to achieve breakthroughs in the following aspects:

• Intelligent: Combining sensors and intelligent control systems, it realizes automatic adjustment of the shading angle and opening and closing state.
• Multifunctionalization: Develop new TPE materials with antibacterial and fire-proof functions to meet the needs of more application scenarios.

6.2 Marketing

Although TPE three-layer composite fabrics have many advantages, their high production costs are still the main factor restricting their widespread use. In the future, how to reduce costs and improve cost-effectiveness will be an important issue facing enterprises.

7. Conclusion

Through in-depth research on TPE three-layer composite fabric, we found that its application prospects in the field of architectural sunshade are broad. With excellent thermal insulation performance and good mechanical strength, TPE three-layer composite fabric can not only effectively reduce building energy consumption, but also improve the comfort of living and working environment. However, to further promote this material, cost and technical obstacles need to be overcome, and we look forward to more technological innovation and market expansion in the future.

References

[1] Smith, J., & Brown, L. (2018). Thermal Insulation Properties of Thermoplastic Elastomers. Journal of Applied Polymer Science, 135(1), 45678.
[2] Zhang, M., & Wang, H. (2020). Energy Efficiency Analysis of Building Shading Systems Using TPE Composite Fabrics. Building and Environment, 179, 106901.

Note: The above content is only examples, and specific data and literature citations need to be adjusted and improved according to actual conditions.

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