Study on the Applicability of PET Gold Plated Film in Sensor Manufacturing under High Temperature Environment

With the continuous development of sensing technology, the performance requirements for materials in extreme environments are becoming increasingly high.Polyester (PET) Gold Plated FilmDue to its excellent conductivity and mechanical strength, it has potential application value in sensor manufacturing. However, the stability of PET materials in high-temperature environments is a topic worth exploring. This article will explore the applicability of PET gold plating film in high-temperature environments and verify its performance through experimental data, aiming to provide reference for the design and manufacturing of sensors.

In many industrial applications, sensors need to operate in high-temperature environments, which places strict requirements on the heat resistance of materials. PET gold-plated film, as a lightweight, flexible, and highly conductive material, can theoretically be used to manufacture sensors that can operate under high temperature conditions. However, the thermal stability of PET itself is limited, which limits its application in high-temperature environments. Therefore, it is necessary to conduct a detailed study on the performance of PET gold plating film in high temperature environments.

Experimental Design and Methods

To evaluatePET gold-plated filmThe applicability in high-temperature environments was studied using the following experimental methods:

• Experimental materials: PET film, gold plating layer (thickness approximately 0.5 μ m).
• Experimental equipment: Thermogravimetric analyzer (TGA), X-ray diffractometer (XRD), scanning electron microscope (SEM), etc.
• Experimental steps: Place the gold-plated PET film sample under different temperature conditions for aging treatment, and conduct performance testing on the treated sample using the above equipment.

Experimental Results and Discussion

1. Thermal stability test

Through thermogravimetric analysis (TGA), we observed the mass change of PET film during the heating process. The results showed that in an air atmosphere, the temperature at which pure PET film begins to degrade is about 270 ° CPET gold-plated filmIt can still maintain good stability at 300 ° C. This indicates that the gold plating layer to some extent protects the PET substrate from the effects of high temperatures.

2. Analysis of structural changes

XRD was used to analyze the samples before and after treatment, and the results showed that the gold plating layer still maintained the crystal structure characteristics of gold after high-temperature treatment, without obvious signs of phase transition or degradation. This indicates that the gold plating layer has good structural stability at high temperatures.

3. Surface morphology observation

By observing the surface morphology of samples treated at different temperatures through SEM, it was found that the surface morphology of PET gold-plated film remained basically unchanged in the temperature range below 200 ° C; However, at temperatures above 300 ° C, the PET substrate showed significant thermal shrinkage, while the gold plating layer exhibited good toughness without obvious cracking or detachment.

data comparison

To further verify the performance of PET gold plating film in high-temperature environments, we compared it with other commonly used materials:

• PET aluminum plated film: At a temperature of 250 ° C, the aluminum plated layer begins to oxidize, resulting in a decrease in conductivity.
• PI gold-plated filmPolyimide (PI) material itself has high thermal stability and maintains good mechanical and electrical properties at 350 ° C.

By comparison, it can be seen that PET gold plating film has good applicability in a lower temperature range (≤ 250 ° C), but its performance is not as stable as PI gold plating film at higher temperatures.

Research progress

Advanced Institute (Shenzhen) Technology Co., LtdA lot of work has been done in the application research of PET gold plating film, and some meaningful results have been achieved. By modifying the gold plating layer, the company has developed a new type of PET gold plating film material that exhibits excellent performance in the temperature range below 250 ° C and maintains relatively stable conductivity and mechanical strength even at 300 ° C.

conclusion

In summary, the application of PET gold-plated film in high-temperature environments is limited by the thermal stability of the PET substrate. However, through the protective effect of the gold plating layer, PET gold plating film still has certain applicability in the lower high temperature range (≤ 250 ° C). For sensors that require operation at higher temperatures, PI gold-plated film may be a better choice. Future research can focus on further improving the heat resistance of PET substrates to expand the application range of PET gold plating films.

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