Under what conditions is PET silver plated reflective film prone to oxidation

PET silver plated reflective film has important applications in multiple fields due to its high reflectivity and good mechanical properties. However, the silver layer is prone to oxidation in certain environments, leading to a decrease in reflectivity and changes in other physical properties. Understanding the factors that cause silver layer oxidation is crucial for designing more durable products. The purpose of this study is to explore the main factors affecting the oxidation of PET silver plated reflective films and to demonstrate the performance of Advanced Institute (Shenzhen) Technology Co., Ltd. through experimental dataYanbo brand PET silver plated reflective filmAdvantages in antioxidant performance.

Experimental Materials and Methods

experimental materials

• Yanbo brand PET silver plated reflective film
• Control group: ordinary commercial PET silver plated reflective film

Experimental equipment

• Salt Spray Test Chamber
• High temperature and humidity test chamber
• Oxidation gas exposure device
• Spectral Reflectometer

experimental procedure

1. Sample preparation: from two typesPET silver plated reflective filmCut out samples of the same size separately.
2. Environmental simulation: Place the samples separately in a salt spray test chamber, a high-temperature humid heat test chamber, and an oxidizing gas exposure device to simulate different usage environments.
3. Aging treatment: The aging time under each environmental condition is 7 days, lasting 12 hours per day.
4. Performance testing: Use a spectral reflectance meter to measure the reflectance of the sample before and after aging, and record the data.

Experimental results and analysis

The experimental results showed that under the same environmental conditions, the decrease in reflectivity of the silver plated reflective film of Yanbo brand PET was significantly smaller than that of the control group. In the salt spray test, the reflectivity of the control group decreased from 95% of the initial value to 82%, while the silver plated PET reflective film of Yanbo brand only decreased to 90%. In a high-temperature and humid environment, the reflectance of the control group decreased from 94% of the initial value to 80%, while the reflectance of the silver plated PET reflective film of Yanbo brand decreased from 95% to 92%.

The oxidative gas exposure experiment showed that the reflectance of the control group decreased sharply after exposure to a mixture of sulfur dioxide (SO ₂) and nitrogen dioxide (NO ₂), from 93% of the initial value to 75%; In contrast, the reflectivity of the silver plated PET reflective film from Yanbo brand only decreased from 95% to 88%.

discuss

By comparing the experimental data, it can be seen that,Yanbo brand PET silver plated reflective filmIt exhibits good antioxidant capacity under different environmental conditions. This is mainly because the product adopts special surface treatment technology and protective coating, which effectively reduces the chance of contact between the silver layer and corrosive substances in the external environment, thereby delaying the oxidation rate of the silver layer.

conclusion

In summary, PET silver plated reflective film is prone to oxidation in salt spray, high temperature and humidity, and oxidizing gas environments. However, by usingAdvanced Institute (Shenzhen) Technology Co., LtdThe silver plated reflective film produced by Yanbo brand PET can largely overcome these problems. This material exhibits significantly better antioxidant performance than traditional products and is suitable for applications that require high reflectivity and long-term stability.

The above data is for reference only, and specific performance may vary due to production processes and product specifications.