Performance change characteristics of aluminum layer of PET aluminum plated film under ultraviolet light irradiation

PET aluminum plated film is a composite flexible packaging film formed by vacuum aluminum plating process of high-purity metal aluminum on PET film. This film not only inherits the characteristics of PET film, but also combines the characteristics of metal, making it widely used in packaging, printing, composite and other fields. This article will focus on exploringPET aluminum plated filmThe performance changes of the aluminum layer under ultraviolet light irradiation and the research and development achievements of Advanced Institute (Shenzhen) Technology Co., Ltd. in this field are introduced.

1、 Basic characteristics of PET aluminum coated film

PET aluminum coated film has excellent barrier properties, especially its ability to reflect ultraviolet and infrared rays. Aluminum has a much higher reflectivity for ultraviolet and infrared radiation in metals than most metals, which allows PET aluminum coating to effectively reduce external heat transfer under sunlight and also serve as insulation. In addition, the UV transmittance of PET film after aluminum plating is extremely low, only below 5%, and a large amount of light is reflected or diffused, so it is widely used in insulation and shading materials.

2、 Performance changes under UV irradiation

1. Reflectivity stability: Under UV irradiation,PET aluminum plated filmThe aluminum layer can maintain a high reflectivity, thereby effectively blocking the penetration of ultraviolet rays. This stability is due to the tight bonding between the aluminum layer and PET film, as well as the good reflection ability of aluminum itself towards ultraviolet radiation.

2. Weather resistance: PET aluminum plated film exhibits excellent weather resistance under long-term exposure to ultraviolet light. The existence of aluminum layer not only enhances the mechanical strength of the film, but also improves its anti-aging ability. This enables PET aluminum plated film to maintain long-term stability and service life in outdoor applications.

3. Barrier performance changes: UV irradiation has a relatively small impact on the barrier performance of PET aluminum plated film. Although prolonged exposure may cause partial chemical bond breakage, the presence of aluminum layer can still effectively block the transmission of oxygen and water vapor, maintaining the oxygen and gas barrier properties of the film.

3、 Research and Development Achievements of Advanced Institute (Shenzhen) Technology Co., Ltd

Advanced Institute (Shenzhen) Technology Co., Ltd. has achieved significant research and development results in the field of PET aluminum plated film. The company adopts advanced vacuum aluminum plating technology, which achieves uniform distribution and good adhesion of aluminum layer on PET film through precise control of aluminum plating temperature and evaporation rate. This not only improves the overall performance of PET aluminum coated film, but also enhances its stability and reliability during the production process.

In addition,Advanced Institute (Shenzhen) Technology Co., LtdWe also conducted in-depth research on the performance changes of PET aluminum plated film under ultraviolet light irradiation. Through simulation experiments and data analysis, the company has mastered the variation law of aluminum layer under ultraviolet light irradiation, providing scientific basis for further optimizing product performance.

4、 Application prospects

PET aluminum plated filmDue to its excellent barrier properties and weather resistance, it has been widely used in fields such as food packaging, lamination, printing, and adhesive labels. Especially in the field of food packaging, PET aluminum coated film can not only effectively protect food from oxygen, moisture, and ultraviolet radiation, but also improve the shelf life and freshness of food. With the continuous improvement of consumers' requirements for food safety and packaging quality, the market demand for PET aluminum plated film will continue to grow.

At the same time, Advanced Institute (Shenzhen) Technology Co., Ltd. will continue to expand its market share and provide high-quality packaging solutions for more industries with its research and development strength and product quality advantages in the field of PET aluminum plated film.

5、 Conclusion

The aluminum layer of PET aluminum coated film exhibits good performance stability under ultraviolet light irradiation. By optimizing the production process and conducting in-depth research on the changes in the aluminum layer under ultraviolet light irradiation, the overall performance and application range of PET aluminum coating can be further improved. The research and development achievements of Advanced Institute (Shenzhen) Technology Co., Ltd. in this field provide strong support for the development of PET aluminum plated film and also offer high-quality packaging material choices for more industries.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.